[Event "3rd Dvoretsky Memorial 2021"]
[Site "Moscow"]
[Date "2021.02.10"]
[Round "1.1"]
[White "Grachev, Boris"]
[Black "Zvjaginsev, Vadim"]
[Result "1/2-1/2"]
[ECO "A21"]
[WhiteElo "2619"]
[BlackElo "2614"]
[Annotator "TA"]
[PlyCount "58"]
[EventDate "2021.02.10"]
[EventType "tourn"]
[EventCountry "RUS"]
[Tiebreak "Koya+Number of wins"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,58,12,-12,3,-20,-20,-10,2,0,-6,-10,27,24,42,0,0,0,0,0,8,-6,21,19,21,
20,22,21,23,15,18,19,18,18,19,20,21,12,12,8,8,8,8,0,0,0,8]} 1. Nf3 d6 2. c4 e5
3. Nc3 f5 4. d3 Nf6 5. g3 Be7 6. Bg2 O-O 7. O-O Qe8 8. c5 Kh8 {A21: English
Opening: 1...e5 2 Nc3.} 9. cxd6 cxd6 10. Bg5 Be6 {[#]} 11. Rc1 $146 ({
Predecessor:} 11. Nd2 Nc6 12. e3 Qf7 13. a3 Rac8 14. Rc1 h6 15. Bxf6 Bxf6 16.
b4 d5 17. Ne2 {1-0 (39) Milosevic,A (2292)-Rabrenovic,V (2397) Kragujevac 2012}
) 11... Nc6 12. d4 {Strongly threatening d5.} Bg8 13. d5 Nb4 {[%cal Rf6d5]} 14.
Nh4 (14. Bxf6 {with more complications.} Bxf6 15. a3 Na6 16. e4 fxe4 17. Nxe4
Be7 18. Nfd2) 14... Nfxd5 15. Nxd5 Nxd5 16. Bxe7 Nxe7 17. Qxd6 Nc6 (17... e4 {
feels hotter.} 18. f3 Rd8 19. Qc5 Nc6 20. fxe4 Nd4) 18. Bxc6 bxc6 19. Qxc6 ({
Not} 19. Rxc6 $2 Rf6 $19) 19... Bxa2 20. Qxe8 Raxe8 21. Rfd1 g6 {The position
is equal.} 22. Ra1 Bc4 23. Rxa7 {With the idea Rdd7.} Rd8 24. Re1 e4 25. Rc7
Bg8 26. Rc2 Bb3 27. Rc3 Bg8 28. Rc2 Bb3 29. Rc3 Bg8 {Weighted Error Value:
White=0.06/Black=0.07} 1/2-1/2

[Event "3rd Dvoretsky Memorial 2021"]
[Site "Moscow"]
[Date "2021.02.10"]
[Round "1.2"]
[White "Inarkiev, Ernesto"]
[Black "Makarian, Rudik"]
[Result "1-0"]
[ECO "A46"]
[WhiteElo "2654"]
[BlackElo "2461"]
[Annotator "TA"]
[PlyCount "137"]
[EventDate "2021.02.10"]
[EventType "tourn"]
[EventCountry "RUS"]
[Tiebreak "Koya+Number of wins"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,137,18,7,7,2,6,6,0,-8,-9,-38,12,-19,21,13,6,9,61,47,39,52,57,49,66,
56,60,50,61,56,55,46,51,60,60,57,64,41,64,58,59,59,62,56,62,56,68,20,20,16,17,
14,99,62,136,86,138,89,86,60,67,65,62,66,90,60,68,54,31,0,0,0,0,0,0,0,0,0,0,0,
0,0,-8,-70,-17,-26,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,18,18,25,32,40,0,90,0,0,
0,191,191,189,189,177,102,189,189,12841,12842,12844,12844,12847,12847]} 1. d4
Nf6 2. Nf3 e6 3. Bf4 b6 4. e3 Bb7 5. Be2 Be7 6. O-O O-O 7. h3 c5 {A47: 1 d4
Nf6 2 Nf3 b6: Torre, London and Colle Systems.} 8. Nbd2 d6 9. a4 $5 {[%mdl 4]
An interesting side line.} Nc6 {[#] The position is equal.} 10. Nc4 $146 ({
Predecessor:} 10. c3 Re8 11. Bh2 Bf8 12. Nc4 d5 13. Nce5 Nxe5 14. Nxe5 c4 15.
b3 Ne4 16. Bf3 cxb3 {1/2-1/2 (68) Plueg,A (2300)-Ruppert,W (2123) Frankfurt
2013}) 10... d5 11. Nce5 c4 12. b3 cxb3 (12... Na5 {with more complications.}
13. bxc4 Rc8 14. Nd2 Bb4 15. Bg5 h6) 13. Nxc6 Bxc6 14. cxb3 Ne4 ({Black should
play} 14... Bb7 $11) 15. Ba6 Bd6 16. Ne5 Be8 17. f3 Nf6 18. Rc1 Nh5 19. Bh2 $1
f6 20. Nd3 Bxh2+ 21. Kxh2 Qd6+ 22. f4 g5 23. Qc2 Rf7 24. Rf3 Ng7 25. Kg1 {
Strongly threatening fxg5.} gxf4 26. Nxf4 e5 {[#]} 27. Nxd5 {[%mdl 64] Remove
Defender} Qxd5 28. Bc4 {[%mdl 64] Skewer} Qd6 29. Rcf1 f5 30. dxe5 Qxe5 31. e4
{[%cal Re4f5]} Qc5+ (31... Ne6 $11 {keeps the balance.} 32. Rxf5 Qd4+ 33. Kh1
Rc8) 32. Qf2 Kf8 (32... Qxf2+ $14 33. R1xf2 Rc8) 33. Bxf7 ({Stronger than} 33.
exf5 Qxf2+ 34. Kxf2 Rf6 $15) 33... Bxf7 (33... Qxf2+ $142 34. Kxf2 (34. R1xf2
Bxf7 35. Kh2 Rd8 $16) 34... Bxf7) 34. exf5 Qxf2+ 35. R1xf2 (35. Kxf2 {is more
complex.} Rd8 36. g4 Ne8 37. Rc1 Rd2+ 38. Kg3) 35... Rd8 36. Rc2 Ne8 37. Kh2
Rd4 38. Rcc3 h5 39. Rcd3 Rb4 40. g3 a5 41. f6 Re4 42. Kg1 Re6 43. Rd8 Kg8 44.
Kf2 Kh7 45. Re3 {Rxe6 is the strong threat.} Nxf6 46. Rxe6 Bxe6 47. Kf3 (47.
Rd4 $11) 47... Bxb3 ({Better is} 47... Nd7 $15) 48. Rd6 $11 Kg7 (48... Nd5 {
feels hotter.} 49. g4 h4 50. Ke4 Nc3+ 51. Ke5 Nxa4 52. Kf5 Kg7) 49. Rxb6 Bxa4
50. Ra6 Bd1+ 51. Kf4 a4 52. Ke5 Nd7+ 53. Kd4 {Threatens to win with Ra7.} Nf8
54. g4 h4 55. Ke4 Bb3 56. Kf5 Bc2+ 57. Kg5 Ng6 58. Ra7+ Kf8 59. Rc7 Bd3 60. Rc3
{[%mdl 1024] White has compensation.} (60. Rb7 {looks sharper.} Ne7 61. Ra7 Bc2
62. Kxh4 Bb3 63. Kg5) 60... Bb1 (60... Ne5 $11) 61. Rc1 (61. Ra3 $1 $16) 61...
Bd3 $1 62. Rd1 Bc2 $2 (62... Ne5 $11) 63. Rd2 $1 $18 {[%cal Rd2c2]} Bb1 {[#]}
64. Rb2 $1 {[%cal Rb2b1]} Bd3 65. Ra2 Ne5 (65... Kf7 $16 {might work better.})
66. Rxa4 Nf3+ $2 {[#]} (66... Kf7 67. Kxh4 Bc2 68. Ra7+ Ke6) 67. Kf6 $1 {
[%cal Ra4a8] White is clearly winning.} Ke8 68. g5 Bf1 69. g6 {Weighted Error
Value: White=0.10/Black=0.16} 1-0

[Event "3rd Dvoretsky Memorial 2021"]
[Site "Moscow"]
[Date "2021.02.10"]
[Round "1.3"]
[White "Gunina, Valentina"]
[Black "Vitiugov, Nikita"]
[Result "1/2-1/2"]
[ECO "E94"]
[WhiteElo "2427"]
[BlackElo "2715"]
[Annotator "TA"]
[PlyCount "67"]
[EventDate "2021.02.10"]
[EventType "tourn"]
[EventCountry "RUS"]
[Tiebreak "Koya+Number of wins"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,67,35,35,41,46,24,38,36,43,31,39,31,32,42,33,30,37,15,17,27,34,26,29,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,15,7,13,12,27,0,20,0,27,0,31,0]} 1. d4
Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Bg4 8. d5 a5 9.
Be3 {E94: King's Indian: Classical: 6 Be2 e5 7 0-0: Various Black 7th moves.}
Na6 10. Ne1 Bd7 11. Nd3 b6 {[#]} 12. Qd2 $146 ({Predecessor:} 12. f3 Nh5 13. g4
Nf6 14. a3 Nc5 15. b3 h5 16. h3 Nh7 17. Kg2 h4 18. Rb1 {0-1 (47) Rakotomaharo,
F (2422)-Ivic,V (2581) Chess.com INT 2021}) 12... Ng4 13. Bxg4 Bxg4 14. f4 exf4
15. Bxf4 Nc5 16. Nxc5 bxc5 17. Rae1 Qe7 18. a4 Bd7 19. Bh6 Bxh6 20. Qxh6 Qe5
21. Qd2 Rab8 22. Nb5 Bxb5 23. cxb5 Ra8 24. Rf4 Rfe8 25. Ref1 Re7 26. b3 Kg7 27.
Rh4 {[#] Hoping for Qh6+.} h5 28. Rhf4 Kg8 29. h3 Kg7 30. R1f3 Qa1+ 31. Rf1 Qe5
32. R1f3 Qa1+ 33. Rf1 Qe5 34. R1f3 {Weighted Error Value: White=0.06/Black=0.02
} 1/2-1/2

[Event "3rd Dvoretsky Memorial 2021"]
[Site "Moscow"]
[Date "2021.02.10"]
[Round "1.4"]
[White "Esipenko, Andrey"]
[Black "Savchenko, Boris"]
[Result "1-0"]
[ECO "A45"]
[WhiteElo "2677"]
[BlackElo "2552"]
[Annotator "TA"]
[PlyCount "77"]
[EventDate "2021.02.10"]
[EventType "tourn"]
[EventCountry "RUS"]
[Tiebreak "Koya+Number of wins"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,77,15,26,8,41,33,27,21,25,10,47,35,41,37,51,52,31,22,22,20,26,18,25,
23,19,24,23,22,31,21,17,0,0,0,36,0,37,23,42,31,64,24,39,29,30,8,33,0,6,18,97,
55,264,259,256,247,270,267,229,235,343,360,367,364,368,331,314,220,809,797]} 1.
d4 Nf6 2. Nc3 d5 3. Bf4 g6 4. e3 a6 5. h4 {[#]} c6 $146 ({Predecessor:} 5...
Bg7 6. h5 Nxh5 7. Rxh5 gxh5 8. Qxh5 Be6 9. Nf3 h6 10. O-O-O Qd7 11. Be5 Bg4 {
1-0 (29) Tan,Z (2510)-Muzychuk,M (2544) Chess.com INT 2020}) 6. Be2 {D00: 1 d4
d5: Unusual lines.} Qb6 7. a3 h5 8. Nf3 {White has an edge.} Bg4 9. O-O Bxf3
10. Bxf3 Nbd7 11. Na4 {[%cal Bc3a4,Ba4b2,Bb2d3,Bd3f4][%mdl 32]} Qa7 12. b3 Bh6
13. Bh2 O-O 14. c4 e6 15. Nb2 Qb6 16. Nd3 Qd8 17. Bd6 Re8 18. g3 Ne4 19. Bf4
Bxf4 20. Nxf4 Nd6 21. Rc1 Qa5 22. a4 Kg7 23. Bg2 Rab8 24. Qc2 dxc4 25. bxc4 e5
26. Ne2 exd4 27. exd4 Qf5 28. Qb2 Qf6 $1 29. Rfd1 Nc5 {[#]} 30. Nc3 $1 $16 Ne6
{[#] This costs Black the game.} ({Wrong is} 30... Nxc4 $2 31. Qa2 $18) ({
Better is} 30... Nce4 $14) 31. c5 $1 $18 {[%cal Bc4c5,Bc5d6,Bd6d7][%mdl 32]}
Nxd4 32. cxd6 Ne2+ 33. Kh2 {Hoping for Rc2.} Nxc1 34. d7 Re6 (34... Ne2 $142)
35. Qxc1 Rd8 36. Ne4 Qe7 37. Qc3+ f6 38. Nc5 Re2 $2 (38... Re5) 39. Qd4 {
Weighted Error Value: White=0.07/Black=0.23} 1-0

[Event "3rd Dvoretsky Memorial 2021"]
[Site "Moscow"]
[Date "2021.02.10"]
[Round "1.5"]
[White "Murzin, Volodar"]
[Black "Kobalia, Mikhail"]
[Result "1/2-1/2"]
[ECO "C67"]
[WhiteElo "2478"]
[BlackElo "2587"]
[Annotator "TA"]
[PlyCount "75"]
[EventDate "2021.02.10"]
[EventType "tourn"]
[EventCountry "RUS"]
[Tiebreak "Koya+Number of wins"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,75,18,21,25,8,8,4,14,0,14,3,4,2,2,0,0,0,0,0,8,0,0,0,8,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 e5 2. Nf3 Nc6
3. Bb5 Nf6 4. O-O Nxe4 5. Re1 Nd6 6. Nxe5 Be7 7. Bf1 Nxe5 8. Rxe5 O-O 9. d4 Bf6
10. Re1 Re8 $1 {10...Re8 is better than 10...Nf5. C67: Ruy Lopez: Berlin
Defence: 4 0-0 Nxe4.} 11. Rxe8+ Nxe8 {The position is equal.} 12. c3 d5 13. Bd3
c6 14. Bf4 g6 15. Nd2 Ng7 16. Nf3 Bf5 17. Bxf5 Nxf5 18. Qd2 {[#]} Nd6 $146 ({
Predecessor:} 18... Qd7 19. Re1 Re8 20. Rxe8+ Qxe8 21. g4 Qe4 22. gxf5 Qxf3 23.
fxg6 fxg6 24. Qe3 Qxe3 25. Bxe3 {1/2-1/2 (39) Gruenfeld,Y (2432)-Sivuk,V (2579)
Israel 2020}) 19. Bxd6 Qxd6 20. Re1 Kg7 21. Qe3 a5 22. Re2 Rd8 23. g3 Rd7 24.
Qe8 Re7 (24... Rd8 $5 25. Qe3 $8 h5 $11) 25. Rxe7 Qxe7 26. Qxe7 Bxe7 $11 {
[%mdl 4096] Endgame KB-KN} 27. Kf1 a4 28. Ke2 Bd6 29. Ne1 Kf6 30. Nd3 Kf5 31.
Kf3 h5 32. h3 b6 33. Ne1 Ke6 34. Nc2 Kf5 35. Ne3+ Ke6 36. Nc2 Kf5 37. Ne3+ Ke6
38. Nc2 {An uneventful encounter.  Weighted Error Value: White=0.02/Black=0.01}
1/2-1/2

[Event "3rd Dvoretsky Memorial 2021"]
[Site "Moscow"]
[Date "2021.02.10"]
[Round "2.1"]
[White "Zvjaginsev, Vadim"]
[Black "Kobalia, Mikhail"]
[Result "1/2-1/2"]
[ECO "A07"]
[WhiteElo "2614"]
[BlackElo "2587"]
[Annotator "TA"]
[PlyCount "88"]
[EventDate "2021.02.10"]
[EventType "tourn"]
[EventCountry "RUS"]
[Tiebreak "Koya+Number of wins"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,88,6,20,-4,14,3,4,-3,0,-16,13,18,16,10,31,22,30,25,42,38,50,4,0,-34,
43,16,60,38,39,29,25,26,44,10,12,12,34,33,33,32,60,38,70,1,1,-13,-12,-10,-8,-8,
-11,-31,11,11,8,-8,71,71,71,71,71,71,74,74,74,40,49,32,71,32,71,71,71,71,71,0,
71,0,71]} 1. Nf3 d5 2. g3 c6 3. Bg2 Bg4 4. O-O Nf6 5. h3 Bh5 6. d3 Nbd7 7. Bf4
{Recently 7.c4 got a lot of attention. A07: Réti Opening: New York and
Capablanca Systems.} e6 8. g4 Bg6 9. Nbd2 Bc5 10. e3 {[#]} Qe7 $146 ({
Predecessor:} 10... O-O 11. Qe2 Qe7 12. Nh4 e5 13. Bh2 Rad8 14. Kh1 Bb6 15.
Rae1 Ne8 16. Nxg6 hxg6 {1/2-1/2 (33) Zvjaginsev,V (2658)-Pushkov,N (2522)
Moscow 2007}) 11. Qe2 h6 12. e4 dxe4 13. dxe4 O-O 14. Bg3 e5 15. Nh4 Rfe8 16.
Qc4 Bh7 17. Nf5 Qe6 (17... Bxf5 $15 18. exf5 e4) 18. Rfe1 Bf8 19. Qxe6 Rxe6 20.
Bf1 Nc5 21. f3 b5 22. b3 Rd8 23. Rad1 Bxf5 (23... Nfd7 {is more complex.} 24.
Bh4 f6 25. a3 Nb7 26. b4 a5) 24. exf5 Red6 25. Re2 Nfd7 26. Rc1 Be7 27. b4 (27.
f4 $14) 27... Bg5 $11 28. bxc5 Rxd2 29. Rxd2 Bxd2 30. Rd1 Nxc5 {[#] aiming for
...Be3+.} 31. Kg2 Na4 32. Bxe5 Rd5 33. Ba1 Bc3 (33... Nb6 $11 {keeps the
balance.}) 34. Rxd5 $16 cxd5 35. Bxb5 Bxa1 36. Bxa4 {[%mdl 4096] Endgame KB-KB}
Kf8 37. Bb3 d4 38. f6 gxf6 39. f4 Bc3 40. Kf3 a5 41. Ke4 Bb2 42. Kf5 Kg7 43.
Ke4 Kf8 44. Kf5 Kg7 $1 {Weighted Error Value: White=0.19/Black=0.18} 1/2-1/2

[Event "3rd Dvoretsky Memorial 2021"]
[Site "Moscow"]
[Date "2021.02.10"]
[Round "2.2"]
[White "Savchenko, Boris"]
[Black "Murzin, Volodar"]
[Result "0-1"]
[ECO "B94"]
[WhiteElo "2552"]
[BlackElo "2478"]
[Annotator "TA"]
[PlyCount "84"]
[EventDate "2021.02.10"]
[EventType "tourn"]
[EventCountry "RUS"]
[Tiebreak "Koya+Number of wins"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,84,15,20,0,10,0,0,0,0,-15,-11,-11,-11,-11,-11,-19,-4,-5,-4,-10,-14,
-10,-1,-70,-58,-71,-67,-84,-84,-139,-119,-119,-45,-73,-37,-76,-77,-67,-75,-70,
-23,-86,-89,-149,-104,-86,-18,-18,-29,-27,0,-4,0,0,0,0,0,-206,-199,-420,-431,
-428,-428,-381,-419,-414,-358,-341,-345,-328,-286,-349,-329,-12840,-12840]} 1.
e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 Nbd7 7. h4 {B94:
Sicilian Najdorf: 6 Bg5 Nbd7.} e6 8. Qf3 h6 {[#]} 9. Bd2 $146 {The position is
equal.} ({Predecessor:} 9. Bxf6 Qxf6 10. Qe3 b5 11. a3 Qd8 12. O-O-O Bb7 13. f4
Qb6 14. g3 Be7 15. Be2 Rb8 16. Rh3 g6 17. Qd2 Nc5 18. h5 g5 19. Qe3 {1-0 (19)
Rodriguez S,M (1830)-Sanchez Bermudez,R ICCF email 2017}) 9... Ne5 10. Qg3 b5
11. f4 {[#]} b4 $1 12. fxe5 bxc3 13. Qxc3 dxe5 14. Nc6 Qc7 15. Bd3 Bb7 16. Nxe5
Bd6 17. Nf3 (17. Qxc7 $11 Bxc7 18. Bf4) 17... Nxe4 18. Bxe4 Bg3+ 19. Ke2 Bxe4
20. Qxg7 ({Better is} 20. Qxc7 Bxc7 21. Rad1) 20... O-O-O $1 $17 21. Qc3 f6 ({
Inferior is} 21... Bxc2 22. Rac1 $16) (21... Bc6 $17 {Strongly threatening ...
Rhg8.} 22. a4 Bd5) 22. Raf1 h5 ({Stronger than} 22... Bxc2 23. Rc1 $16) 23. Rh3
Rhg8 24. Ne1 {Hoping for Rxg3!} Qxc3 25. Bxc3 Bxe1 26. Rxe1 (26. Bxe1 $11 Rxg2+
27. Rf2) 26... Rxg2+ 27. Ke3 (27. Kf1 $142 Rg4 28. Rh2) 27... Bxc2 28. Kf3 {[#]
} Rg4 ({Black should try} 28... Rg6 $1 $17 {Threatens to win with ...e5.} 29.
Rhh1 Bf5) 29. Rxe6 $11 Rd3+ 30. Re3 Rd1 31. Kf2 Be4 {[%csl Ge4][%cal Rg4g2]}
32. Rhg3 {And now Rxg4 would win.} Rxh4 {( -> ...Rh2+)} 33. Rg8+ Kb7 {...Rh2+
is the strong threat.} 34. Kg3 {[#]} (34. Rg7+ $11 {and White has nothing to
worry.} Kb6 35. Bxf6 Rh2+ 36. Kg3 h4+ 37. Kf4) 34... Rdh1 $1 $19 35. Bxf6 (35.
Ba5) 35... R1h3+ 36. Kf2 Rf4+ {[%mdl 64] Double Attack} 37. Ke2 Bf3+ 38. Rxf3
Rhxf3 39. Be5 Rf5 40. Rh8 Rh3 41. Re8 Kc6 {aiming for ...Kd7.} 42. a4 $2 (42.
Bc3) 42... Kd7 {Weighted Error Value: White=0.56/Black=0.13} 0-1

[Event "3rd Dvoretsky Memorial 2021"]
[Site "Moscow"]
[Date "2021.02.10"]
[Round "2.3"]
[White "Vitiugov, Nikita"]
[Black "Esipenko, Andrey"]
[Result "1/2-1/2"]
[ECO "E04"]
[WhiteElo "2715"]
[BlackElo "2677"]
[Annotator "TA"]
[PlyCount "60"]
[EventDate "2021.02.10"]
[EventType "tourn"]
[EventCountry "RUS"]
[Tiebreak "Koya+Number of wins"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,60,24,12,11,25,22,0,0,0,0,0,16,13,21,11,37,32,37,33,36,45,47,48,38,
31,41,39,28,36,42,8,20,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. Nf3
d5 3. c4 e6 4. g3 dxc4 5. Bg2 c5 6. O-O Nc6 7. dxc5 $1 {[%mdl 4] is more
profitable than 7.Qa4 at the moment.} Qxd1 {E04: Open Catalan: 5 Nf3.} 8. Rxd1
Bxc5 9. Nfd2 (9. Nbd2 {seems wilder.} c3 10. bxc3 O-O 11. Nb3 Be7 12. Nfd4)
9... Na5 10. Na3 Bxa3 11. bxa3 Nd5 12. Ne4 O-O 13. Bd2 b6 {[#]} 14. Nc3 $146 ({
Predecessor:} 14. Rac1 Ba6 15. Bxa5 bxa5 16. Nc5 Bb5 17. Bxd5 exd5 18. Rxd5
Rfd8 19. Rxd8+ Rxd8 20. Ne4 {1-0 (39) Carlsen,M (2837)-Harikrishna,P (2744)
Riadh 2017}) 14... Bb7 15. Nxd5 Bxd5 16. Bxa5 bxa5 17. Bxd5 exd5 18. Rxd5 $14 {
[%mdl 4096] Endgame KRR-KRR} Rfc8 19. Rc1 Rab8 20. Rc3 g6 21. Rxa5 Rb2 {
The position is equal.} 22. e4 Rc7 23. Ra4 Rxa2 24. Raxc4 Rxc4 25. Rxc4 {
Ra4 is the strong threat.} Rxa3 $11 {KR-KR} 26. e5 a5 27. Rc8+ Kg7 28. Rc7 Kg8
29. Rc8+ Kg7 30. Rc7 Kg8 {Weighted Error Value: White=0.04/Black=0.04} 1/2-1/2

[Event "3rd Dvoretsky Memorial 2021"]
[Site "Moscow"]
[Date "2021.02.10"]
[Round "2.4"]
[White "Makarian, Rudik"]
[Black "Gunina, Valentina"]
[Result "1/2-1/2"]
[ECO "D17"]
[WhiteElo "2461"]
[BlackElo "2427"]
[Annotator "TA"]
[PlyCount "191"]
[EventDate "2021.02.10"]
[EventType "tourn"]
[EventCountry "RUS"]
[Tiebreak "Koya+Number of wins"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,191,0,34,25,40,21,31,18,47,-13,0,-28,-8,-8,0,-17,56,57,56,43,54,45,
44,6,7,10,14,0,34,19,52,47,71,70,70,70,72,70,77,70,71,71,92,97,119,66,64,31,43,
7,10,13,73,73,73,73,62,64,64,56,57,0,25,25,57,0,83,83,88,58,58,58,58,58,58,58,
80,80,80,80,80,80,80,80,80,80,80,80,80,80,80,80,80,80,129,0,51,0,0,0,80,0,80,0,
122,122,125,106,122,0,116,0,73,52,52,51,72,73,73,73,73,73,73,73,73,73,73,73,73,
73,73,73,74,73,80,80,80,73,80,46,46,46,80,46,46,46,124,120,289,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4.
Nc3 dxc4 5. a4 Bf5 6. Ne5 Nbd7 {6...Nbd7 scores better than 6...e6.} 7. Nxc4
Nb6 8. e3 {D17: Slav Defence: 5 a4 Bf5: Lines with 6 Nh4 and 6 Ne5.} e6 9. a5
Nxc4 10. Bxc4 {White is slightly better.} Qc7 {[#]} 11. h3 $146 (11. Qb3 $14) (
{Predecessor:} 11. f3 Bg6 12. Qb3 Rd8 13. Ne2 Nd7 14. e4 Be7 15. Be3 O-O 16. h4
h6 17. Nf4 {1/2-1/2 (34) Goh,K (2419)-Zhang,P (2519) Singapore 2004}) 11... Bd6
12. Qf3 Bb4 13. O-O $1 Bg6 14. a6 bxa6 (14... b6 $11) 15. Rxa6 $14 O-O 16. Bd2
Rfc8 17. Rfa1 Qb7 18. R6a4 {Ba6 is the strong threat.} a5 19. R4a2 Qe7 20. b3
Rab8 (20... Bh5 $5 {[%cal Rh5f3]} 21. g4 Bg6 $14) 21. Na4 Bxd2 22. Rxd2 Ne4 23.
Rda2 e5 24. Nc5 {[%mdl 64] Discovered Attack} exd4 25. exd4 Nxc5 26. dxc5 Qxc5
27. Rxa5 Qe7 28. Ra7 Rb7 29. Rxb7 (29. Ra8 $1 $16 {[%cal Ra8c8]} Rbc7 30. R1a7
$1) 29... Qxb7 30. h4 (30. Ba6 $5 {[%cal Ra6b7]} Qa8 31. Qc3 $14) 30... h5 $1
31. Ra5 Qe7 32. Rg5 Kh7 (32... Qd6 $11) 33. Bd3 $16 Bxd3 34. Rxh5+ Kg8 35. Qxd3
$14 {[%mdl 4096] Endgame White wants to mate with Qh7+. KQR-KQR} g6 36. Rg5 Rd8
37. Qg3 (37. Qc3 $14) 37... Rd1+ 38. Kh2 Qe1 {[%csl Gd1][%cal Re1h1]} 39. Qf3 (
39. Qb8+ $14 Kg7 40. Qe5+ Qxe5+ 41. Rxe5) 39... Qg1+ (39... Rd4 $11) 40. Kg3
$16 Qf1 41. Re5 Rd3 42. Re8+ Kg7 43. Re3 Rxe3 44. Qxe3 $14 {KQ-KQ} Qb5 45. Qd4+
Kg8 46. b4 Qf5 47. Kh2 Kh7 48. g3 Qf3 49. Kg1 Kg8 50. Kf1 Kh7 51. Ke1 Qb3 52.
Kd2 Qa2+ 53. Ke3 Qb3+ 54. Kd2 ({White should try} 54. Kf4 $16) 54... Qa2+ $1
55. Kc3 (55. Kc1 $1 $14) 55... Qa1+ $11 56. Kc4 Qc1+ (56... Qa2+ $1 $11 57. Kd3
Kg8) 57. Kd3 (57. Kb3 $1 $16) 57... Qd1+ {[#]} (57... Qb1+ $1 $11 58. Ke3 Qb3+
59. Kf4 Qe6) 58. Ke3 (58. Ke4 $1 $16 Qg4+ 59. Ke3 Qe6+ 60. Kf3) 58... Qe1+ (
58... Qb3+ $11 {keeps the balance.} 59. Kf4 Qe6) 59. Kf3 Qb1 60. Kg2 Qb3 61.
Kf1 (61. g4 $16) 61... Qc2 (61... Qb1+ $11 62. Kg2 Qc1) 62. Ke1 (62. g4 $16)
62... Kg8 (62... Qb3 $11 {remains equal.}) 63. Qc5 Qd3 64. Qe7 Qc3+ {[#]} 65.
Kf1 $1 Kg7 66. Qd6 Qc4+ 67. Kg1 Qe4 68. Qc5 Qe1+ 69. Kh2 Qe4 70. Qd6 Kh7 71.
Qf6 Qc4 72. Qe7 Qd5 73. Qc5 {aiming for Qxd5.} Qf3 74. Qd4 Kg8 75. Qf4 Qd5 76.
g4 Kg7 77. Kg3 Qb3+ 78. Kg2 Qd5+ 79. Kh2 Qb3 ({Black should play} 79... Kg8 $14
) 80. h5 $16 {Threatens to win with h6+.} gxh5 $2 (80... Kh7 $16 81. Qf6 Qd5)
81. Qg5+ $2 (81. gxh5 $18 Qd1 82. h6+ Kg6 83. Qh4) 81... Kf8 $1 $11 {The
position is equal.} 82. Qc5+ Kg7 83. Qg5+ Kf8 $1 84. gxh5 {Hoping for h6.} Qxb4
85. h6 {[%cal Rg5d8]} (85. Kg3 {seems wilder.} Qd4 86. Qf5 Qd5 87. Qg4 c5 88.
h6) 85... Qd6+ 86. Kh3 {And now Qg7+ would win.} (86. Kg1 {keeps more tension.}
Qd1+ 87. Kg2 Qd5+ 88. Qxd5 cxd5) 86... Qd3+ (86... Qd4 {feels hotter.} 87. Kg2
Qd5+ 88. Qxd5 cxd5) 87. Kh2 Qd6+ 88. f4 Qd2+ 89. Kg3 Qe1+ 90. Kf3 {Qd8+ would
kill now.} (90. Kg2 {with more complications.} Qd2+ 91. Kf1 Qd4 92. Kg2 Qd2+)
90... Qd1+ (90... Ke8 {is interesting.} 91. Qf6 Qd1+ 92. Kg3 Qe1+ 93. Kf3) 91.
Ke3 (91. Kf2 {seems wilder.} Qd2+ 92. Kf1 Qd4 93. Kg2 Qd2+ 94. Kf1) 91... Qb3+
92. Kf2 {[%cal Rg5d8]} Qc2+ 93. Kf3 {[%cal Rg5d8]} Qd3+ 94. Kf2 Qd2+ 95. Kg3 {
Strongly threatening Qg7+.} Qe3+ 96. Kg2 {Weighted Error Value: White=0.18/
Black=0.22} 1/2-1/2

[Event "3rd Dvoretsky Memorial 2021"]
[Site "Moscow"]
[Date "2021.02.10"]
[Round "2.5"]
[White "Grachev, Boris"]
[Black "Inarkiev, Ernesto"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "2619"]
[BlackElo "2654"]
[Annotator "TA"]
[PlyCount "75"]
[EventDate "2021.02.10"]
[EventType "tourn"]
[EventCountry "RUS"]
[Tiebreak "Koya+Number of wins"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,75,22,24,0,4,0,0,0,0,-13,-13,-13,-13,-17,-2,-6,-29,-22,-27,-28,0,0,0,
-3,0,0,0,-14,0,-10,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,187,187,188,
192,541,536,508,413,392,385,520,498,1494,1187]} 1. d4 d5 2. Nf3 Nf6 3. g3 g6 4.
Bg2 Bg7 5. O-O O-O 6. a4 {D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3
and 2...Nf6 3 Bf4.} a5 {[#]} 7. Bf4 $146 ({Predecessor:} 7. b3 c6 8. Nbd2 Bf5
9. Ba3 Re8 10. e3 Qc8 11. c4 Bh3 12. cxd5 Bxg2 13. Kxg2 Nxd5 {0-1 (58) Kramnik,
V (2753)-Nepomniachtchi,I (2775) Moscow 2019}) 7... b6 8. Ne5 {The position is
equal.} Bb7 9. Nc3 Nbd7 10. Nxd7 Qxd7 11. Be5 Ne4 12. Bxe4 dxe4 13. Bxg7 Kxg7
14. d5 e6 15. dxe6 Qxe6 16. Qd4+ Qf6 17. Qc4 Qe5 18. Rad1 Rad8 19. Qb5 Qe6 20.
Qg5 Qf6 21. Qe3 Rfe8 22. Rxd8 Rxd8 23. Rd1 Rxd1+ 24. Nxd1 c5 25. Nc3 Bc6 26. h4
h6 27. Qd2 g5 28. hxg5 hxg5 29. Nd5 Qd8 30. c4 Bxa4 31. Qe3 f5 $2 {[#]} (31...
Bc6 $11 {and Black stays safe.}) 32. Qc3+ $1 $18 Kg6 33. Qe5 Qe8 $2 (33... e3)
34. Qf6+ Kh7 35. Qxb6 {aiming for Nf6+.} Qe5 36. Qxa5 Be8 37. Qxc5 Kh6 (37...
Bh5 $142 38. Qf8 Bg4) 38. Qf8+ {Weighted Error Value: White=0.05/Black=0.32}
1-0

[Event "3rd Dvoretsky Memorial 2021"]
[Site "Moscow"]
[Date "2021.02.10"]
[Round "3.1"]
[White "Inarkiev, Ernesto"]
[Black "Zvjaginsev, Vadim"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "2654"]
[BlackElo "2614"]
[Annotator "TA"]
[PlyCount "115"]
[EventDate "2021.02.10"]
[EventType "tourn"]
[EventCountry "RUS"]
[Tiebreak "Koya+Number of wins"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,115,18,27,29,43,33,35,24,76,63,60,64,57,12,53,0,34,37,45,45,56,42,47,
46,46,46,46,46,43,44,49,47,46,48,43,30,30,0,0,0,0,-16,-23,-13,-11,-21,0,0,97,
82,82,91,86,63,143,137,140,85,68,36,156,56,167,157,165,150,206,137,201,37,120,
112,189,0,134,132,128,119,120,124,115,138,141,138,378,368,339,327,395,412,381,
73,85,79,393,345,1051,997,12841,12841,12841,12842,12843,12842,12842,12841,
12846,12846]} 1. d4 d5 2. Nf3 e6 3. Bf4 Bd6 4. e3 Qe7 5. Nbd2 Nd7 {[#]} 6. c4
$146 {D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4.}
({Predecessor:} 6. Bxd6 Qxd6 7. e4 dxe4 8. Nxe4 Qb4+ 9. c3 Qxb2 10. Rb1 Qa3 11.
Bd3 Ngf6 12. O-O {1-0 (32) Prithu,G (2472)-Tica,S (2402) chess.com INT 2020})
6... Ngf6 7. c5 Bxf4 8. exf4 {White is slightly better.} h6 (8... O-O $11 {
keeps the balance.}) 9. Bd3 $16 g5 10. Qe2 gxf4 11. O-O-O c6 12. Ne5 (12. Kb1
$14) 12... Nxe5 13. Qxe5 b6 14. Nb3 Bb7 15. Kb1 Rg8 16. Qxf4 Rxg2 17. Rhg1 Rxg1
18. Rxg1 O-O-O 19. Qxh6 Nd7 20. h4 Qf6 21. Qxf6 Nxf6 22. Rg7 Rf8 $1 23. Kc2 Nh5
24. Rg4 Rh8 25. Kd2 Kd8 26. Ke3 Bc8 27. Be2 Ke7 (27... Nf6 {with more
complications.} 28. Rf4 Ke7 29. h5 Bd7 30. Rh4 Ng8) 28. Rg1 Kf6 (28... Kf8 $11
{remains equal.}) 29. Bxh5 Rxh5 {[%mdl 4096] Endgame KRB-KRN} 30. Rg8 $1 {
[%cal Rg8c8]} Ba6 31. Ra8 $1 {aiming for cxb6.} bxc5 (31... Bf1 $14) 32. Nxc5
Bf1 33. Rxa7 (33. Nd7+ $142 $1 Kf5 34. Rf8) 33... Rxh4 34. a4 {[%cal Ba2a4,
Ba4a5][%mdl 32]} Rh3+ (34... e5 $1 $14) 35. Kd2 ({Better is} 35. f3 $16) 35...
Rh2 (35... Rh4 $14) 36. Ke1 $18 Rh1 37. a5 Bb5+ 38. Kd2 Rf1 (38... Rh4 $16 {
is a better defense.}) 39. Ke3 $2 (39. a6 $1 $18) 39... Re1+ (39... e5 $1 $14)
40. Kf3 $16 Rd1 (40... Ra1 $16) 41. Ke3 ({White has to play} 41. a6 $1 $18)
41... Re1+ 42. Kf4 $1 Rd1 43. Nd7+ Kg6 44. Ne5+ Kh5 45. Rxf7 {[%cal Rf7h7]}
Rxd4+ {[#]} 46. Kg3 $1 {Black must now prevent Rh7+.} Rd1 $2 {[#]} (46... Rb4
$16) 47. f4 $1 $18 {[%cal Rf7h7]} Kh6 48. Rf6+ Kh5 49. Rxe6 Rg1+ 50. Kf2 $2 (
50. Kf3 $18 {and the rest is easy.}) 50... Rb1 $16 51. Ke3 {Strongly
threatening f5.} ({Of course not} 51. Nxc6 $6 Rxb2+ 52. Kf3 Rb3+ 53. Kg2 Rb2+
54. Kh3 Rb3+ 55. Kg2 Kg4 $11) 51... c5 $2 {[%mdl 8192]} (51... Rxb2 $16 {
is more resistant.} 52. Re7 Rb3+ 53. Kd4 Rb4+ 54. Kc5 Rxf4) 52. f5 Rxb2 $2 (
52... d4+ 53. Ke4 Re1+ 54. Kf4 Rf1+ 55. Nf3 c4) 53. f6 $18 {White is clearly
winning.} Re2+ 54. Kf3 Re1 55. f7 Rf1+ 56. Kg2 {Threatening mate with Nf3.} Rf5
57. a6 Rg5+ 58. Kh2 {Weighted Error Value: White=0.31/Black=0.34} 1-0

[Event "3rd Dvoretsky Memorial 2021"]
[Site "Moscow"]
[Date "2021.02.10"]
[Round "3.2"]
[White "Gunina, Valentina"]
[Black "Grachev, Boris"]
[Result "0-1"]
[ECO "D37"]
[WhiteElo "2427"]
[BlackElo "2619"]
[Annotator "TA"]
[PlyCount "70"]
[EventDate "2021.02.10"]
[EventType "tourn"]
[EventCountry "RUS"]
[Tiebreak "Koya+Number of wins"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,70,-6,-7,-22,-20,-24,-24,-16,-25,-23,-18,-15,-14,-22,-20,-41,-54,-218,
-114,-127,-64,-65,-80,-83,-50,-64,-55,-62,-48,-179,-179,-302,-306,-307,-306,
-289,-294,-283,-295,-292,-247,-377,-370,-360,-353,-439,-397,-421,-397,-552,
-296,-1035,-1022,-894,-812,-1544,-1506,-6448,-6532,-7742,-7742,-4141,-2021]} 1.
d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 a6 5. Bg5 dxc4 6. e4 {D24: Queen's Gambit
Accepted: 3 Nf3 Nf6 4 Nc3.} b5 7. e5 {[#]} h6 $1 8. Bh4 {[%mdl 64] [#] Pin.
Black has an edge.} g5 $1 9. Nxg5 hxg5 10. Bxg5 {[%mdl 64] [#] Pin} Nbd7 11.
exf6 (11. Be2 Bh6) 11... Bb7 12. d5 Nc5 {Strongly threatening ...b4.} 13. Be2
$2 {[#]} (13. dxe6 $15 Nxe6 14. Qxd8+ Rxd8 15. Be3) 13... Bxd5 $146 ({Better is
} 13... b4 $19 14. Na4 Nd3+ {[%mdl 64] Decoy} 15. Bxd3 Qxd5 {[%mdl 64] Double
Attack}) ({Predecessor:} 13... b4 14. Bxc4 bxc3 15. dxe6 Qxd1+ 16. Rxd1 Nxe6
17. Bxe6 fxe6 18. bxc3 Bxg2 19. Rg1 Rxh2 {0-1 (36) Akesson,R (2395)-Benitez
Lozano,J (2350) Chess.com INT 2020}) 14. Nxd5 {[#] Black must now prevent Ne7.}
Qxd5 (14... Nd3+ $1 $17 15. Bxd3 Qxd5 {[%mdl 64] Double Attack}) 15. Qxd5 $15
exd5 16. O-O-O O-O-O 17. Be3 Bh6 18. f4 Ne4 19. g4 {Black continues to play
with concentration.} (19. Bg4+ $15 Kb8 20. Bf3 Nxf6 21. Kc2) 19... d4 $1 $19 {
[%cal Rd4e3][%mdl 64] Deflection} 20. Bxd4 (20. g5 {was called for.} dxe3 21.
Bg4+ Kb8 22. Rxd8+ Rxd8 23. gxh6) 20... Bxf4+ {[%mdl 64] Double Attack,
Discovered Attack} 21. Kc2 {[#]} c5 $1 {[%cal Rc5d4]} (21... Rxh2 22. Rxh2 Bxh2
23. Bf3 $17) 22. Bc3 Rxd1 ({Not} 22... Rxh2 23. Rxd8+ Kxd8 24. Rxh2 $17) 23.
Bxd1 Nf2 ({Weaker is} 23... Rxh2+ 24. Rxh2 Bxh2 25. Bf3 $17) 24. Re1 Rxh2 {
aiming for ...b4.} 25. Re8+ (25. a3 $142) 25... Kd7 26. Re7+ Kd6 27. Ba5 {
Threatens to win with Bc7+.} Nxg4+ 28. Kb1 {Hoping for Bc7+.} Nxf6 29. Rxf7 Be5
30. Ra7 $2 (30. Bc7+ Ke6 31. Bxe5 Kxe5 32. Bf3) 30... Rxb2+ {Black is clearly
winning.} 31. Kc1 Rxa2 32. Rxa6+ Kd5 33. Bf3+ Ne4 34. Ra7 Kd4 35. Bb6 Bf4+ {
Weighted Error Value: White=1.10/Black=0.19} 0-1

[Event "3rd Dvoretsky Memorial 2021"]
[Site "Moscow"]
[Date "2021.02.10"]
[Round "3.3"]
[White "Esipenko, Andrey"]
[Black "Makarian, Rudik"]
[Result "1-0"]
[ECO "A45"]
[WhiteElo "2677"]
[BlackElo "2461"]
[Annotator "TA"]
[PlyCount "75"]
[EventDate "2021.02.10"]
[EventType "tourn"]
[EventCountry "RUS"]
[Tiebreak "Koya+Number of wins"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,75,-8,-4,0,14,4,22,22,34,16,148,148,141,136,133,126,134,69,65,60,60,
64,52,53,75,70,72,25,35,20,75,56,55,62,55,63,106,104,270,47,133,141,124,98,102,
39,39,38,36,16,273,268,251,237,460,449,557,381,377,385,670,701,702,694,1512,
1542,1850,1799]} 1. d4 Nf6 2. Nc3 d5 3. Bf4 e6 4. Nb5 Na6 5. e3 c6 6. Nc3 {
D00: 1 d4 d5: Unusual lines.} Nc7 7. Nf3 Bd6 8. Ne5 {The position is equal.}
Qe7 9. Qf3 Nd7 {[#]} (9... Bb4 $11) 10. Nxf7 $146 {[%mdl 576] Double Attack} ({
Predecessor:} 10. Qg3 Bxe5 11. dxe5 Qf8 12. h4 b6 13. h5 h6 14. Rh4 Ba6 15.
Bxa6 Nxa6 16. Rg4 {1/2-1/2 (108) Bortnyk,O (2600)-Bogdanovich,S (2593) Omelnyk
2017}) 10... Bxf4 11. Qxf4 Qxf7 12. Qxc7 O-O 13. Qg3 ({Better is} 13. f4 $16)
13... e5 $14 14. dxe5 Nxe5 15. Be2 Qe7 16. O-O-O Bf5 17. Rd4 b5 {[%cal Bb7b5,
Bb5b4][%mdl 32]} 18. Rhd1 b4 19. Na4 Nd7 (19... a5 $11) 20. Qc7 Rac8 21. Qb7 (
21. Qxa7 $2 Ra8 $19) 21... Qd6 22. e4 ({Wrong is} 22. Qxb4 $2 c5 $19) (22. Rxb4
$2 Rc7 $19) (22. Qxa7 $2 Ra8 $19) 22... Rc7 23. Qxb4 c5 $2 {[#]} 24. Qa3 $2 ({
Weaker is} 24. Rxd5 Qxd5 25. Qc4 (25. Rxd5 cxb4 26. exf5 Re8 $14) 25... Qxc4
$16) ({Only move:} 24. Nxc5 $1 $18 {[%mdl 512]} Rxc5 25. exf5) 24... Qh6+ (
24... Bxe4 $14 25. R4d2 (25. Rxe4 Qh6+ 26. Re3 d4 $11 {[%mdl 64] Pin}) 25...
Bxg2) 25. R4d2 $16 Bxe4 26. f3 Bg6 27. Nc3 ({White should try} 27. g3 $16)
27... Nb6 $14 28. Kb1 $36 {[%mdl 2048] White has some pressure.} d4 29. Nb5 Re7
{[%mdl 8192]} (29... Rc6 $11 {and Black has nothing to worry.}) 30. Qxc5 $18 {
[%mdl 64] Double Attack} Rfe8 31. Nxd4 Qxh2 $2 (31... Re5 32. Qc6 Qxh2) 32. Bb5
Re5 33. Qd6 Qh6 {...Qxd2! is the strong threat.} 34. a4 {[%cal Ba2a4,Ba4a5]
[%mdl 32]} Rd5 $2 (34... Rxb5 35. Nxb5 Nc4) 35. Qb4 {White is clearly winning.}
Red8 36. a5 Nd7 37. Bc4 Nf6 38. Nc6 {[%mdl 64] Double Attack.  Weighted Error
Value: White=0.27/Black=0.54} 1-0

[Event "3rd Dvoretsky Memorial 2021"]
[Site "Moscow"]
[Date "2021.02.10"]
[Round "3.4"]
[White "Murzin, Volodar"]
[Black "Vitiugov, Nikita"]
[Result "1/2-1/2"]
[ECO "B51"]
[WhiteElo "2478"]
[BlackElo "2715"]
[Annotator "TA"]
[PlyCount "75"]
[EventDate "2021.02.10"]
[EventType "tourn"]
[EventCountry "RUS"]
[Tiebreak "Koya+Number of wins"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,75,18,18,19,22,16,20,24,11,19,20,4,21,7,4,4,20,0,0,0,0,0,0,0,7,0,6,0,
0,-17,0,0,0,-8,-11,-7,0,-12,-11,-16,-13,-34,-34,-34,-34,-47,-18,-27,-45,-23,27,
26,26,42,40,40,21,28,28,35,61,54,63,0,0,0,67,0]} 1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7
4. O-O a6 5. Bd3 Ngf6 6. c3 {B51: Sicilian: Moscow Variation (3 Bb5+) without
3...Bd7.} e6 7. Bc2 b5 8. d4 {The position is equal.} Bb7 9. Qe2 Be7 10. Re1
Qc7 11. Bd3 O-O (11... c4 $5 12. Bc2 $8 O-O $11) 12. Nbd2 {[%cal Bb1d2,Bd2f1,
Bf1g3][%mdl 32]} Rfe8 13. Nf1 cxd4 14. cxd4 e5 15. d5 Nc5 {[#]} 16. Bc2 $146 ({
Predecessor:} 16. Ng3 Nxd3 17. Qxd3 Rac8 18. Bg5 Nd7 19. Bxe7 Rxe7 20. Nf5 Ree8
21. Qa3 Nc5 22. b4 {1-0 (42) Ramirez Alvarez,A (2549)-Chandra,A (2505) Saint
Louis 2017}) 16... a5 17. Ng3 g6 18. h3 ({Not} 18. Qxb5 $2 Ba6 $19) 18... b4
19. Be3 Nfd7 20. Qd2 Rec8 21. Rac1 Ba6 22. Ba4 $1 {[%cal Ra4d7]} Qd8 23. Bc6
Nd3 24. Bxa8 Rxa8 25. Red1 Nxc1 26. Rxc1 Rc8 27. Qd1 Bb5 28. Nd2 Rxc1 29. Qxc1
Bg5 30. Bxg5 Qxg5 31. Qc8+ Kg7 32. Nf3 Qf4 33. Qc7 h5 {With the idea ...h4.}
34. h4 (34. Qxd6 h4 $17) 34... Nf6 35. Ng5 {Threatening mate with Nf5+.} ({
Don't go for} 35. Qxa5 $2 Qc1+ 36. Kh2 Ng4+ 37. Kh3 Nxf2+ 38. Kh2 Be2 $1 $19)
35... Bd7 36. Nf3 (36. Ne6+ $5 Bxe6 37. dxe6 $16) 36... Bb5 37. Ng5 {White
wants to mate with Nf5+.} ({But not} 37. Qxa5 $2 Qc1+ 38. Kh2 Ng4+ 39. Kh3
Nxf2+ 40. Kh2 Be2 $1 $19) 37... Bd7 {[#]} 38. Nf3 {Weighted Error Value:
White=0.07/Black=0.05} ({Better is} 38. Ne6+ $1 $14 Bxe6 39. dxe6) 1/2-1/2

[Event "3rd Dvoretsky Memorial 2021"]
[Site "Moscow"]
[Date "2021.02.10"]
[Round "3.5"]
[White "Kobalia, Mikhail"]
[Black "Savchenko, Boris"]
[Result "1-0"]
[ECO "B51"]
[WhiteElo "2587"]
[BlackElo "2552"]
[Annotator "TA"]
[PlyCount "153"]
[EventDate "2021.02.10"]
[EventType "tourn"]
[EventCountry "RUS"]
[Tiebreak "Koya+Number of wins"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,153,22,25,22,45,41,41,20,51,44,69,49,82,86,123,127,114,108,121,129,
143,116,157,116,126,77,82,18,70,70,64,64,70,62,64,-239,69,68,62,68,58,61,282,
284,282,277,254,282,268,278,289,-709,289,287,275,272,306,300,307,305,323,321,
321,321,311,301,280,279,344,0,263,255,500,492,547,547,539,377,527,511,599,598,
2270,2285,1383,1210,4856,4850,4144,2479,29963,29964,29968,29967,29968,29969,
29978,29969,29970,29970,29971,29973,29972,29974,29974,29975,29975,29974,29971,
29971,29980,29976,29980,29978,29978,29977,29975,29977,29977,29978,29978,29976,
29984,29985,29985,29978,29977,29975,29975,29976,29966,29967,29966,29964,29985,
29967,29966,29957,29985,29986,29984,12829,11886,4153,29989,29990]} 1. e4 c5 2.
Nf3 d6 3. Bb5+ Nd7 4. O-O a6 5. Bd3 Ngf6 6. c3 {B51: Sicilian: Moscow
Variation (3 Bb5+) without 3...Bd7.} Ne5 7. Nxe5 {7.Be2 is the hot move.} dxe5
8. Qe2 $5 {[%mdl 4] [#] White is slightly better. Leaves trodden paths.} Nd7
$146 ({Predecessor:} 8... g6 9. a4 Nh5 10. g3 Qd7 11. a5 Qc7 12. Bc4 Bh3 13.
Rd1 Bh6 14. b4 Rc8 {1-0 (32) Johannessen,L (2518)-Goudriaan,E (2374)
Maastricht 2013}) 9. a4 Nb8 10. Na3 Be6 11. Bc4 Bd7 12. f4 exf4 13. d4 (13.
Rxf4 e6 $14) 13... cxd4 14. Bxf4 {Hoping for Bxf7+!} (14. Rxf4 $6 e6 $14) 14...
e6 15. Qh5 {[%mdl 1024] aiming for Bxb8. White has strong compensation.} g6 {
[#]} 16. Qf3 (16. Qe5 $6 f6 $16) 16... Nc6 17. Bc7 {[%csl Gf1][%cal Rf3f7]} Qe7
({Don't blunder} 17... Qxc7 $2 18. Qxf7+ Kd8 19. Qf6+ Be7 20. Qxh8+ Be8 21.
Bxe6 $18) 18. e5 $40 {[%mdl 128] White is up to no good.} (18. Bb3 $16 {
Strongly threatening Nc4.} Bg7 19. Nc4) 18... dxc3 (18... Bg7 $11 19. Bd6 Nxe5
20. Qxb7 {[%mdl 64] Double Attack} Qxd6 21. Qxa8+ Ke7 22. Qxa6 Qxa6 23. Bxa6
dxc3 24. bxc3 Bxa4) 19. Bd6 $14 Nxe5 $1 {[%mdl 64] [#] Decoy} 20. Bxe5 (20.
Qxb7 Qxd6 21. Qxa8+ Ke7 $17) 20... Qc5+ {[%mdl 64] Double Attack} 21. Kh1 $1
Qxe5 22. Qxf7+ Kd8 {...Bd6 is the strong threat.} 23. Rae1 $1 {[%cal Re1e5]}
Qg7 24. Rd1 {White threatens Rxd7+ and mate.} Qxf7 25. Rxf7 cxb2 $2 ({Better is
} 25... Bxa3 $14 26. Rfxd7+ Ke8 27. bxc3 (27. bxa3 $2 c2 $19) 27... Rf8) 26.
Rfxd7+ $18 ({Not} 26. Rdxd7+ Ke8 $16) 26... Ke8 27. Nb1 Rc8 28. Bxe6 {[%csl
Gd7][%cal Re6f7]} Bb4 {intending ...Rf8.} 29. Rxb7 Rc1 {[%cal Rc1d1]} 30. Bf7+
Kf8 {[%cal Rc1d1]} 31. Bb3 a5 32. g3 h5 33. Kg2 {[%cal Rd1d8]} Rxd1 34. Bxd1
Rg8 35. Kf3 Rg7 36. Rxg7 Kxg7 37. Bc2 Kf6 38. Ke4 Kg5 39. Kf3 Kf6 40. h3 Be1 $2
(40... Kg5 41. Ke2 Bd6) 41. Na3 Kg5 42. Nc4 Bc3 43. Nd6 {Black must now
prevent Ne4+.} Bd4 44. g4 hxg4+ 45. hxg4 Kf6 46. Ke4 Bc3 47. Kd3 Bb4 48. Nc4
Kg5 49. Kd4 Kxg4 50. Bxg6 Be7 51. Nxa5 Kg5 52. Bb1 Kf6 53. Kd5 Bb4 54. Nc4 Ke7
55. Nxb2 Kd7 56. Kc4 Bd2 57. Kb5 Kc7 58. Nc4 Be1 59. a5 Bf2 60. Be4 Bg1 61. Nb2
Kd6 62. Ka6 Kc7 63. Nd3 Bd4 64. Nb4 Bf2 65. Nd5+ Kb8 66. Kb5 Kb7 67. Nb4+ Kc7
68. Na6+ Kd6 69. Bf3 Bg1 70. Nb4 Kc7 71. Nd5+ Kb7 72. Ne7+ Kc7 73. a6 Bf2 74.
Nd5+ Kb8 75. Nb4 (75. Bh5 $142 Bg1 76. Bg4 Bd4 77. Ne7 Bg1 78. Nc6+ Kc7 79. a7
Bxa7 80. Nxa7) 75... Kc7 76. Nd3 Be3 77. Nc5 {Weighted Error Value: White=0.18/
Black=0.40} 1-0

[Event "3rd Dvoretsky Memorial 2021"]
[Site "Moscow"]
[Date "2021.02.10"]
[Round "4.1"]
[White "Zvjaginsev, Vadim"]
[Black "Savchenko, Boris"]
[Result "1/2-1/2"]
[ECO "B50"]
[WhiteElo "2614"]
[BlackElo "2552"]
[Annotator "TA"]
[PlyCount "92"]
[EventDate "2021.02.10"]
[EventType "tourn"]
[EventCountry "RUS"]
[Tiebreak "Koya+Number of wins"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,92,-6,3,0,12,4,6,-8,0,-13,0,8,10,3,10,7,10,1,19,-41,93,93,89,79,85,
107,481,309,321,333,336,489,322,329,319,322,304,0,80,0,307,307,360,328,621,603,
634,615,583,597,470,49,51,46,43,47,47,31,31,31,41,28,29,28,28,23,31,23,25,0,0,
0,11,0,0,0,8,8,11,11,12,12,12]} 1. e4 c5 2. Nf3 d6 3. Bd3 g6 4. O-O Bg7 5. Bb5+
Nc6 6. c3 Nf6 7. Re1 {B50: Sicilian: 2...d6, Miscellaneous.} Bg4 8. h3 Bxf3 {
[#]} 9. Bxc6+ $146 ({Predecessor:} 9. Qxf3 Qb6 10. Na3 O-O 11. Be2 a6 12. d3
Qc7 13. Nc2 b5 14. Bg5 Nd7 15. Qe3 {1/2-1/2 (32) Nemec,Z (2233)-Meissner,R 
(2112) LSS email 2011}) 9... bxc6 10. Qxf3 e5 11. d3 Nd7 12. Nd2 Nf8 13. d4
cxd4 14. cxd4 exd4 15. e5 (15. Nc4 $11 Be5 16. Bh6) 15... d5 {[#]} (15... dxe5
$15 {keeps the upper hand.} 16. Nc4 Qd5 17. Qxd5 cxd5 18. Nxe5 Ne6) 16. Nc4 $1
$16 {[%cal Rc4d6]} dxc4 17. Qxc6+ Nd7 18. e6 fxe6 {[%mdl 8192]} (18... O-O $16
{is more resistant.} 19. exd7 a6) 19. Qxe6+ Kf8 {White must now prevent ...h5.}
20. Bf4 {White wants to mate with Bd6+.} Bf6 21. Bh6+ Bg7 22. Qd6+ Kf7 23. Qd5+
Kf8 24. Qd6+ $2 (24. Qxd4 $18 {[%csl Gh6][%cal Rd4g7] and White stays clearly
on top.} Qf6 25. Bxg7+ Kxg7 26. Re7+ Kf8 27. Rxd7 Qxd4 28. Rxd4) 24... Kf7 {[#]
} 25. Qd5+ $2 (25. Bxg7 $1 $16 {Threatening mate with Bh6.} Nf6 26. Qxf6+ Qxf6
27. Bxf6 Kxf6 28. Re4) 25... Kf8 $1 $18 26. Qxd4 {[%csl Gh6][%cal Rd4g7]} Nf6
27. Qc5+ Kg8 $2 (27... Kf7) 28. Bxg7 Kxg7 29. Re7+ {[%mdl 64] Double Attack}
Kh6 30. Qe5 {White threatens Qf4+ and mate.} Rf8 {[#]} 31. h4 $2 ({White has
to play} 31. g4 $1 $18 {[%cal Rg4g5] Intending g5+ and mate.} Qb8 32. Rc7 Qxc7
33. Qxc7) 31... Qd2 $14 32. f4 {[%csl Gf4,Gh4][%cal Re5g5]} Qd5 {Hoping for ...
Qxe5.} 33. Qg5+ Qxg5 34. hxg5+ Kh5 {...Nd5 is the strong threat.} 35. gxf6 {
[%mdl 4096] Endgame KRR-KRR} Rab8 36. Rc1 Rxb2 37. Rxc4 Rxf6 38. Rxh7+ Kg4 39.
Rxa7 Rxf4 40. Raa4 (40. Rxf4+ {seems wilder.} Kxf4 41. Kh2 g5 42. Ra4+ Kf5 43.
Kh3) 40... g5 {The position is equal.} 41. Kh2 (41. Re4 {looks sharper.} Rc2
42. a3 Ra2 43. Kh2 Ra1 44. Red4) 41... Rd2 42. Rxf4+ gxf4 43. Ra8 f3 44. Rg8+
Kf5 45. Rf8+ Kg6 46. Rxf3 {And now Ra3 would win.} Rxa2 {Black escapes into a
draw.  Weighted Error Value: White=0.43/Black=0.36} 1/2-1/2

[Event "3rd Dvoretsky Memorial 2021"]
[Site "Moscow"]
[Date "2021.02.10"]
[Round "4.2"]
[White "Vitiugov, Nikita"]
[Black "Kobalia, Mikhail"]
[Result "0-1"]
[ECO "B12"]
[WhiteElo "2715"]
[BlackElo "2587"]
[Annotator "TA"]
[PlyCount "57"]
[EventDate "2021.02.10"]
[EventType "tourn"]
[EventCountry "RUS"]
[Tiebreak "Koya+Number of wins"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,57,-6,8,14,22,20,51,60,62,61,60,54,60,52,60,59,70,62,60,52,66,45,55,
46,81,81,92,45,68,67,81,75,67,74,356,347,330,339,333,291,275,-150,97,86,90,
-320,-192,-824,-681,-860]} 1. e4 c6 2. d4 d5 3. f3 e6 4. Nc3 Bb4 5. Bd2 Nf6 6.
e5 {B12: Caro-Kann: Advance Variation.} Nfd7 {Threatening ...Qh4+.} 7. f4 b6 $5
{[%mdl 4] Exploring less charted territory.} 8. Qg4 {White is slightly better.}
g6 9. Nf3 Ba6 10. Bxa6 Nxa6 11. O-O Nc7 {[#]} 12. Qh3 $146 ({Predecessor:} 12.
Nb5 Nxb5 13. Bxb4 c5 14. dxc5 bxc5 15. Bd2 Qe7 16. c3 f5 17. Qh3 c4 18. b4 cxb3
19. axb3 {1-0 (40) Westerinen,H (2355)-Quintas Galeano,L (2155) Balaguer 2011})
12... c5 13. Be1 cxd4 14. Nxd4 Bc5 15. Rd1 Qc8 16. Bf2 Qa6 17. a3 h5 18. Rd3
Bxd4 19. Rxd4 Nb8 20. Bh4 {Threatens to win with f5.} Nc6 21. Rd3 Nb5 $2 {
[%mdl 8192]} (21... Ne7 $16) 22. Nxd5 exd5 23. e6 O-O 24. e7 Rfe8 25. Bf6 (25.
f5 $1 $18 {[%cal Rf5g6] Hoping for fxg6.} Nxe7 26. fxg6 Nxg6 27. Qd7) 25... Nd6
$2 (25... Nxe7 $17 {White must now prevent ...Nd6.} 26. f5 Qc8 {[%mdl 64]
Double Attack}) 26. Rg3 $16 {Threatening mate with Qxh5.} ({Not} 26. Qd7 Ne4
$17) 26... Qe2 {[#]} ({Weaker is} 26... Ne4 27. Rxg6+ $3 {[%mdl 512]} fxg6 28.
Qe6+ Kh7 29. Qf7+ Kh6 30. Qg7#) 27. Qd7 {[%mdl 8192]} (27. f5 $1 $16 {[%cal
Rf5g6]} Kh7 28. fxg6+ fxg6 29. Re3) 27... Nxe7 28. Be5 $2 (28. Qxd6 Nf5 {
[%mdl 64] Double Attack} 29. Qxd5) 28... Ndf5 29. Rc3 {Weighted Error Value:
White=0.67/Black=0.56} 0-1

[Event "3rd Dvoretsky Memorial 2021"]
[Site "Moscow"]
[Date "2021.02.10"]
[Round "4.3"]
[White "Makarian, Rudik"]
[Black "Murzin, Volodar"]
[Result "0-1"]
[ECO "E73"]
[WhiteElo "2461"]
[BlackElo "2478"]
[Annotator "TA"]
[PlyCount "114"]
[EventDate "2021.02.10"]
[EventType "tourn"]
[EventCountry "RUS"]
[Tiebreak "Koya+Number of wins"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,114,58,67,64,58,64,54,55,55,52,58,60,57,65,69,62,43,46,31,32,0,0,0,0,
0,0,0,0,19,23,0,0,0,0,-16,-9,-4,-35,-137,54,62,54,29,67,0,45,12,0,-14,-6,-12,0,
0,0,-63,-63,-86,-93,-95,-162,-312,-158,-134,-97,-92,-95,-105,-59,-56,-48,-657,
-269,-379,-18,-16,-14,-3918,-3251,-1642,-1423,-3173,-2349,-2706,-2297,-1806,
-1451,-1289,-1289,-3220,-3273,-1684,-1784,-29970,-29971,-29980,-29982,-29981,
-29982,-29984,-29985,-29990,-29991]} 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 O-O 5.
Be2 d6 6. Be3 e5 7. d5 a5 8. g4 Na6 {E73: King's Indian: Averbakh Variation
without 6...c5.} 9. h4 Nc5 10. f3 h5 {White is slightly better.} 11. g5 Nfd7
12. Nh3 a4 13. Nf2 c6 {[#]} 14. Qd2 $146 ({Predecessor:} 14. dxc6 bxc6 15. Qxd6
Qa5 16. O-O a3 17. b4 Qxb4 18. Rfc1 Ra6 19. Rab1 Qa5 20. Nd3 Nxd3 21. Qxd3 {
1-0 (40) Makarian,R (2441)-Murzin,V (2470) Moscow 2020}) 14... Qa5 15. O-O-O
Nb8 16. Kb1 Nba6 17. dxc6 bxc6 18. Nd5 $1 {[%cal Rd5e7]} Qxd2 19. Ne7+ {
[%mdl 64] Double Attack, Zwischenzug} Kh8 20. Rxd2 Bb7 $1 21. Rxd6 Rfd8 22.
Rxc6 Bxc6 23. Nxc6 Rd7 24. Rd1 Rc7 $1 {[%cal Rc7c6]} 25. Na5 Bf8 26. Bd2 (26.
Rd5 $15) 26... Nb8 $2 (26... Ne6 $1 $17 27. Nd3 Nd4) 27. Bc3 $14 Nbd7 28. Bf1
Kg8 29. Bh3 (29. Nd3 $1 $14) 29... Be7 30. Bxd7 Nxd7 31. Nc6 Rxc6 32. Rxd7 Re6
33. Nd3 f6 34. f4 (34. Kc2 $11) 34... Rd8 $1 $15 {[%cal Rd8d7]} 35. Rxd8+ Bxd8
36. gxf6 Bxf6 37. Bxe5 (37. f5 $142 gxf5 38. exf5) 37... Bxh4 {[%mdl 4096]
Endgame KRB-KBN} (37... Bxe5 $19 38. fxe5 (38. Nxe5 $2 g5 $19) 38... g5) 38. f5
$17 gxf5 39. exf5 Rc6 {Strongly threatening ...Bf6.} 40. b3 axb3 41. axb3 Bf6 {
...Bxe5 is the strong threat.} 42. b4 $2 {[%mdl 8192]} (42. Bf4 $15) 42... Bxe5
$19 43. Nxe5 {[#] KR-KN} Rb6 (43... h4 $1 $19 {[%mdl 512]} 44. c5 {[#]} (44.
Nxc6 $2 {perishes.} h3 $19) 44... h3 $1) 44. b5 $11 h4 {White must now prevent
...h3.} 45. Ka2 $2 {[%mdl 8192]} (45. Kc2 $11) 45... h3 $19 46. Ng4 Rd6 47. Kb3
Kf7 48. Kc3 Ke7 49. c5 Rd5 50. f6+ Ke6 51. b6 Rxc5+ 52. Kb4 Rg5 53. Nh2 Kd6 {
Black mates.} 54. f7 Rf5 55. Kc3 Rxf7 56. Kd4 Rf2 57. Ng4 Rf4+ {[%mdl 64]
Double Attack.  Weighted Error Value: White=0.62/Black=0.32} 0-1

[Event "3rd Dvoretsky Memorial 2021"]
[Site "Moscow"]
[Date "2021.02.10"]
[Round "4.4"]
[White "Grachev, Boris"]
[Black "Esipenko, Andrey"]
[Result "1/2-1/2"]
[ECO "E10"]
[WhiteElo "2619"]
[BlackElo "2677"]
[Annotator "TA"]
[PlyCount "128"]
[EventDate "2021.02.10"]
[EventType "tourn"]
[EventCountry "RUS"]
[Tiebreak "Koya+Number of wins"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,128,3,23,16,18,16,27,-28,-23,-43,-33,-56,-56,-62,-54,-57,-39,-51,-51,
-27,16,0,0,-9,-2,-54,-14,-33,-37,-39,-27,-30,-27,-47,-50,-41,0,-47,-45,-45,-52,
-45,-52,-56,-35,-35,-27,-35,-37,-39,-15,-15,-15,-76,-49,-76,-76,-76,-76,-76,
-76,-76,-64,-76,-76,-76,-57,-57,-57,-76,-76,-76,-76,-96,-96,-96,-96,-96,-42,
-96,-96,-140,0,-96,-96,-96,-80,-80,-80,-80,-8,-74,-8,-8,-8,-8,-8,-8,-8,-8,-8,
-8,0,0,0,-8,0,-8,0,-8,-8,-8,-8,-8,0]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 dxc4
5. Qa4+ Nbd7 6. Qxc4 a6 7. Bg2 c5 8. Qc2 b5 9. Ne5 {E03: Open Catalan: 5 Qa4+
Nbd7 6 Qxc4.} Nd5 $1 10. Nxd7 Bxd7 11. dxc5 (11. Bxd5 $142 exd5 12. dxc5) 11...
Rc8 $11 12. O-O Bxc5 {[#]} 13. Qb3 $146 ({Predecessor:} 13. Qd1 O-O 14. Nd2 Bc6
15. Nb3 Bb6 16. Bd2 a5 17. Nc1 Ne7 18. Bf4 Bxg2 19. Kxg2 {0-1 (36) Deac,B 
(2594)-Adams,M (2712) Douglas 2018}) 13... O-O 14. Nd2 {[%cal Bb1d2,Bd2e4,
Be4g5][%mdl 32]} a5 15. a3 a4 16. Qd3 Qb6 17. Ne4 Bd4 18. Ng5 {[%csl Gg5][%cal
Rd3h7]} Nf6 19. Nf3 Bc5 20. Bg5 (20. Ne5 $11 Rfd8 21. b4) 20... Rfd8 21. Bxf6
gxf6 22. Qe4 Be7 23. Qg4+ Kh8 24. Rac1 b4 25. axb4 Bxb4 26. Qd4 Qxd4 27. Nxd4
Bc5 28. Nc6 Bxc6 29. Rxc5 Bxg2 {[%mdl 64] Discovered Attack} 30. Rxc8 Rxc8 31.
Kxg2 $15 {[%mdl 4096] Endgame KR-KR} Rc2 32. Ra1 Rxe2 33. Rxa4 Rxb2 34. Kf3 (
34. Rf4 $11 {keeps the balance.}) 34... f5 35. Kg2 Kg7 36. Kf3 Kg6 37. Kg2 Rb1
38. Ra8 Rb4 39. Kf3 Rb3+ 40. Kg2 Rd3 41. Rg8+ Kf6 42. Rh8 {[#]} Kg7 $1 {
[%cal Rg7h8]} 43. Re8 Rd4 44. f4 Rd2+ 45. Kh3 Re2 46. Rb8 Kg6 (46... Rc2 $17)
47. Rg8+ $1 {[#]} Kh6 $1 48. Rf8 Kg7 49. Rb8 Rf2 50. Ra8 h5 51. Rb8 h4 52. Ra8
Re2 ({Better is} 52... Kf6 $17) 53. Rb8 (53. gxh4 $11 {remains equal.} Re3+ 54.
Kg2) 53... f6 (53... hxg3 $17 {Strongly threatening ...g2.} 54. hxg3 Kf6) 54.
Rb7+ $11 {The position is equal.} Kg6 {Black wants to play ...hxg3.} 55. Rb6 $1
hxg3 56. hxg3 Kf7 57. Rb7+ Ke8 58. Rb8+ Kd7 59. Rb7+ Ke8 60. Rb8+ Kf7 61. Rb7+
Kg6 {With the idea ...e5.} 62. Rb6 $1 Re3 63. Ra6 Kh5 64. Rb6 Kg6 {Weighted
Error Value: White=0.11/Black=0.13} 1/2-1/2

[Event "3rd Dvoretsky Memorial 2021"]
[Site "Moscow"]
[Date "2021.02.10"]
[Round "4.5"]
[White "Inarkiev, Ernesto"]
[Black "Gunina, Valentina"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "2654"]
[BlackElo "2427"]
[Annotator "TA"]
[PlyCount "73"]
[EventDate "2021.02.10"]
[EventType "tourn"]
[EventCountry "RUS"]
[Tiebreak "Koya+Number of wins"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,73,4,23,12,16,6,27,22,18,20,22,15,23,16,29,29,30,28,43,27,29,18,38,25,
56,22,27,18,35,33,57,57,45,51,78,72,96,50,46,49,238,258,536,357,413,414,384,
292,282,300,296,303,294,290,318,283,388,304,380,381,436,372,29988,29989,29989,
29990]} 1. d4 d5 2. Nf3 Nf6 3. Bf4 c5 4. e3 Nc6 5. Nbd2 cxd4 6. exd4 {D02: 1
d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4.} Bf5 7. c3 e6
8. Qb3 {White has an edge.} Qc8 {8...Bd6 deserves study.} 9. Nh4 Be4 10. Nxe4
Nxe4 11. Bd3 Bd6 12. Be3 O-O {[#]} 13. g3 $146 ({Predecessor:} 13. O-O Qc7 14.
g3 Rac8 15. Rae1 Be7 16. Bf4 Nd6 17. Nf3 Qd8 18. h4 Nc4 19. Qc2 {1-0 (27)
Lorparizangeneh,S (2486)-Afshari,M (2105) Sari 2018}) 13... f5 14. f3 Nf6 15.
Qc2 Rb8 16. O-O b5 17. Qe2 b4 18. c4 f4 19. Bf2 dxc4 20. Bxc4 Nd5 21. Rfe1 Rf6
22. Rac1 Qb7 23. Qxe6+ {[%mdl 64] [#] Remove Defender} Rxe6 24. Bxd5 {[%mdl 64]
Pin, Discovered Attack} Qb5 $2 {This move loses the game for Black.} 25. Bxe6+
$18 Kf8 $2 (25... Kh8 {was worth a try.} 26. Bd7 Qg5) 26. Bd7 fxg3 27. hxg3 Qg5
28. f4 (28. Bxc6 Bxg3 29. Bxg3 Qxg3+ 30. Ng2 g6 $18) 28... Bxf4 29. Rc5 (29.
Rxc6 Bxg3 30. Nf3 Qf4 $18) 29... Ne5 30. Rcxe5 ({Don't take} 30. dxe5 $6 Bxg3
31. Bxg3 (31. Nf3 Qf4 $16) 31... Qxg3+ 32. Ng2 g6 $18) 30... Bxe5 31. Nf3 ({
Don't play} 31. dxe5 $6 Ke7 $18) ({Not} 31. Rxe5 Qc1+ 32. Re1 Qxb2 $14) 31...
Qg6 32. Nxe5 Qc2 33. Be6 {[#] Strongly threatening Nd7+.} Rd8 34. d5 g5 35. Bd4
{Threatens to win with Rf1+.} Qd2 $2 (35... Rd6 $18 36. Bxa7 Ke8) 36. Rf1+ Ke8
37. Bc5 {[%csl Gc5][%cal Rf1f8] Weighted Error Value: White=0.19/Black=0.65}
1-0

[Event "3rd Dvoretsky Memorial 2021"]
[Site "Moscow"]
[Date "2021.02.10"]
[Round "5.1"]
[White "Gunina, Valentina"]
[Black "Zvjaginsev, Vadim"]
[Result "0-1"]
[ECO "A41"]
[WhiteElo "2427"]
[BlackElo "2614"]
[Annotator "TA"]
[PlyCount "50"]
[EventDate "2021.02.10"]
[EventType "tourn"]
[EventCountry "RUS"]
[Tiebreak "Koya+Number of wins"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,50,22,16,26,7,19,-46,-38,-33,-25,-43,-13,-36,-46,-97,-105,-129,-131,
-200,-202,-209,-218,-295,-288,-325,-341,-418,-422,-473,-467,-533,-564,-741,
-737,-890,-886]} 1. d4 d6 2. c4 e5 3. e3 Nf6 4. Nc3 Nbd7 5. Nf3 g6 6. Be2 Bg7
7. O-O O-O 8. b4 exd4 9. exd4 d5 {E61: King's Indian: Early deviations for
White, including Smyslov System.} 10. c5 a5 11. Qb3 ({White should play} 11. b5
$11) 11... axb4 $15 {Black is slightly better.} 12. Qxb4 {[#]} c6 $146 ({
Predecessor:} 12... Ne4 13. Bb2 Re8 14. Rfe1 Nb8 15. Bb5 Bd7 16. Bxd7 Qxd7 17.
Qb3 Nc6 18. Qxd5 Qxd5 19. Nxd5 Nxc5 20. Rxe8+ Rxe8 21. Nxc7 {0-1 (38) Neuman,P
(2403)-Simacek,P (2411) Czechia 2002}) 13. Bf4 Qa5 14. Qxa5 Rxa5 15. Rfc1 (15.
Be3 $15) 15... Ne4 $17 16. Bc7 Ra8 17. Nd1 {[#]} (17. Nxe4 $17 dxe4 18. Ne5)
17... Re8 $1 $19 18. Bf1 Nf8 19. Bf4 Ne6 20. Be3 f5 21. g3 g5 22. Bd3 {Black
is clearly winning.} f4 23. gxf4 gxf4 24. Bd2 Nxd4 {[%mdl 64] [#] Overworked
Piece} 25. Nxd4 Nxd2 {White got outplayed after the opening.  Weighted Error
Value: White=0.51/Black=0.03} 0-1

[Event "3rd Dvoretsky Memorial 2021"]
[Site "Moscow"]
[Date "2021.02.10"]
[Round "5.2"]
[White "Esipenko, Andrey"]
[Black "Inarkiev, Ernesto"]
[Result "1/2-1/2"]
[ECO "D00"]
[WhiteElo "2677"]
[BlackElo "2654"]
[Annotator "TA"]
[PlyCount "110"]
[EventDate "2021.02.10"]
[EventType "tourn"]
[EventCountry "RUS"]
[Tiebreak "Koya+Number of wins"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,110,-8,4,-31,-23,-36,-32,-49,-47,-47,-7,-39,-9,-19,25,22,35,41,45,54,
53,51,52,45,49,43,49,47,46,43,43,39,102,11,9,4,46,35,14,37,23,15,32,50,36,51,
188,142,151,142,145,140,127,96,97,137,158,12,14,17,22,0,9,8,20,9,9,11,35,0,0,
-21,0,-210,-199,-187,-195,-195,-160,-168,-24,-33,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0]} 1. d4 d5 2. Nc3 Nf6 3. Bf4 a6 4. e3 e6 5. g4 h6 {[#]} 6. h3 $146
{D00: 1 d4 d5: Unusual lines.} ({Predecessor:} 6. h4 c5 7. Qf3 Nc6 8. O-O-O Qa5
9. Kb1 Nd7 10. g5 cxd4 11. exd4 hxg5 12. hxg5 Rxh1 13. Qxh1 {0-1 (49)
Alekseenko,K (2563)-Sjugirov,S (2650) Sochi 2017}) 6... c5 7. Nf3 b5 8. Ne5 {
Black is slightly better.} Bb7 9. Bg2 Bd6 10. Ne2 Qc7 11. c3 g5 12. Bg3 Ne4 13.
Bxe4 dxe4 14. h4 $1 {[%cal Rh4g5]} f6 15. Ng6 Rg8 16. h5 Nd7 17. a4 Kf7 18. O-O
Bd5 19. Bxd6 Qxd6 20. Ng3 Rgc8 (20... Qc6 $14) 21. axb5 ({White should play} 
21. Qc2 $16) 21... axb5 $11 22. Rxa8 Bxa8 (22... Rxa8 {seems wilder.} 23. Qc2
Qc6 24. Rc1 Ke8 25. Re1 Ra2) 23. dxc5 (23. Qb1 {feels hotter.} cxd4 24. cxd4
Bd5 25. Nxe4 Qc6 26. f3) 23... Qxd1 24. Rxd1 Nxc5 25. Ra1 {Ra7+ is the strong
threat.} Bb7 $1 26. Ra5 Rc7 27. Rxb5 Nd3 (27... Bd5 $14) 28. b3 Bc6 29. Rb6 Ba8
30. c4 Ra7 31. Rd6 Ra1+ 32. Kg2 Ne1+ {[#]} 33. Kh3 (33. Kh2 $1 $16) 33... Nd3
34. Rd7+ Ke8 35. Re7+ {[%mdl 64] Double Attack} Kd8 36. Rxe6 Nxf2+ 37. Kg2 Nxg4
38. Nf5 Re1 39. Rd6+ (39. Nxh6 $5 Nxh6 40. Rxf6 $14) 39... Kc7 40. Rd2 Bc6 41.
Kg3 $2 (41. Nf8 $11) 41... Nxe3 $19 42. Kf2 Rf1+ 43. Kxe3 Rxf5 {[%mdl 4096]
Endgame KRB-KRN} 44. b4 {[%cal Bb3b4,Bb4b5][%mdl 32]} Rf1 (44... Bb7 $19 {
Hoping for ...Rf3+.} 45. b5 Rf3+ 46. Kd4 g4) 45. b5 $11 Re1+ (45... Bb7 {
is more complex.} 46. Kd4 Rf5 47. Ne7 e3 48. Re2 Rf4+) 46. Kf2 {The position
is equal.} e3+ {[%mdl 64] [#] Double Attack} 47. Kxe1 exd2+ 48. Kxd2 {KB-KN}
Bf3 49. Ne7 Bxh5 {Threatens to win with ...Bf7.} 50. Nd5+ Kd6 51. Nxf6 Bg6 52.
Ke3 {Black should prevent Kd4.} Kc5 53. Nd7+ Kd6 54. Nf6 Kc5 55. Nd7+ Kd6 {
Never resign too early!  Weighted Error Value: White=0.25/Black=0.18} 1/2-1/2

[Event "3rd Dvoretsky Memorial 2021"]
[Site "Moscow"]
[Date "2021.02.10"]
[Round "5.3"]
[White "Murzin, Volodar"]
[Black "Grachev, Boris"]
[Result "0-1"]
[ECO "B40"]
[WhiteElo "2478"]
[BlackElo "2619"]
[Annotator "TA"]
[PlyCount "70"]
[EventDate "2021.02.10"]
[EventType "tourn"]
[EventCountry "RUS"]
[Tiebreak "Koya+Number of wins"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,70,34,14,12,7,13,2,10,13,28,23,13,-15,-12,-20,2,0,4,0,0,0,25,23,79,
79,88,84,119,105,151,143,191,169,197,41,41,44,46,55,58,64,72,45,67,-112,-113,
-145,-119,-181,0,0,0,-557,-537,-29992,-29993,-29993,-29994,-29994,-29995]} 1.
e4 c5 2. Nf3 e6 3. g3 Nc6 4. Bg2 Nf6 5. Qe2 d6 6. O-O Be7 7. c3 O-O {C00:
French: Unusual White 2nd moves.} 8. Rd1 d5 9. e5 Nd7 {The position is equal.}
10. d4 a5 11. a4 b6 12. Bf4 Ba6 {[#]} 13. Qd2 $146 ({Predecessor:} 13. Qe3 cxd4
14. cxd4 b5 15. axb5 Bxb5 16. Nc3 Ba6 17. Bg5 Rb8 18. Na4 Bb5 19. Bxe7 Qxe7 20.
Nc3 Ba6 21. Na4 Bb5 22. Nc3 Ba6 23. Na4 Bb5 24. Nc3 {1/2-1/2 (24) Sergeev,V 
(2411)-Milov,L (2475) Bregenz 2019}) 13... Rc8 14. h4 Qe8 15. Na3 cxd4 16. cxd4
Bb4 17. Qe3 Ne7 (17... Bxa3 $11 {keeps the balance.} 18. bxa3 Ne7) 18. Nb5 $16
Nf5 19. Qd3 h5 20. Rac1 Rxc1 21. Rxc1 Qb8 22. Ng5 {Strongly threatening Bxd5!}
g6 23. g4 $2 (23. Bh3 $18) 23... hxg4 $14 24. h5 $1 {[%cal Rh5g6] hxg6 is the
strong threat.} Be7 $1 {Hoping for ...Qd8.} ({Not} 24... gxh5 $2 25. Bxd5 $1
Qe8 26. Be4 $18) 25. hxg6 Bxg5 26. Bxg5 {Threatens to win with Bxd5!} fxg6 27.
Rc6 Qe8 {White must now prevent ...Nxe5!} 28. Qd2 $2 {[#]} (28. Rc7 $14 {
stays ahead.}) 28... Nxe5 $1 $17 {[%mdl 512]} 29. Rc7 Nc4 30. Qe2 (30. Qf4 $17)
30... Rf7 $2 (30... Bxb5 $19 31. axb5 Rf7 32. Rxf7 Kxf7 33. Qxg4 Nxb2) 31. Bxd5
$1 $11 {[%mdl 64] Double Attack} Nce3 $1 $36 {[%cal Re3d5][%mdl 2048] Black
has some pressure.} 32. Bc6 {[%mdl 8192] [#]} (32. Rxf7 $11 Kxf7 33. Bb3 Bxb5
34. axb5) 32... Rxc7 $1 $19 {[%mdl 64] Pin} 33. Bxe8 Rc1+ {Black mates.} 34.
Kh2 {[#]} Bb7 $1 {[%csl Gb7][%cal Rc1h1]} 35. d5 (35. Qe1 Rxe1) 35... Bxd5 {
[%csl Gd5][%cal Rc1h1] Black used his chance.  Weighted Error Value: White=0.
60/Black=0.14} 0-1

[Event "3rd Dvoretsky Memorial 2021"]
[Site "Moscow"]
[Date "2021.02.10"]
[Round "5.4"]
[White "Kobalia, Mikhail"]
[Black "Makarian, Rudik"]
[Result "1/2-1/2"]
[ECO "C65"]
[WhiteElo "2587"]
[BlackElo "2461"]
[Annotator "TA"]
[PlyCount "87"]
[EventDate "2021.02.10"]
[EventType "tourn"]
[EventCountry "RUS"]
[Tiebreak "Koya+Number of wins"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,87,9,8,1,16,11,6,14,7,0,7,0,0,0,0,0,0,-7,0,0,0,0,0,0,0,0,0,0,0,0,39,
40,42,45,44,45,58,43,43,43,89,89,77,40,42,32,61,37,37,35,40,41,40,37,37,26,27,
6,13,2,2,0,10,0,0,0,0,0,0,-28,-26,-36,0,0,0,0,0,0]} 1. e4 e5 2. Nf3 Nc6 3. Bb5
Nf6 4. d3 Bc5 5. O-O d6 6. c3 O-O 7. Ba4 {C65: Ruy Lopez: Berlin Defence (3...
Nf6), unusual lines and 4 0-0 Bc5.} Bb6 8. Bc2 Ne7 9. d4 Ng6 10. a4 {[#] And
now a5 would win.} a5 $146 ({Predecessor:} 10... c6 11. dxe5 dxe5 12. Qxd8 Rxd8
13. Nbd2 Nf4 14. Nc4 Ne2+ 15. Kh1 Nxc1 16. Nxb6 axb6 17. Raxc1 {1/2-1/2 (59)
Kobalia,M (2614)-Dominguez Perez,L (2758) chess.com INT 2020}) 11. dxe5 dxe5
12. Qxd8 Rxd8 13. Nbd2 Be6 14. Ng5 Bg4 15. h3 Be2 16. Re1 Ba6 17. Bb3 Rd7 18.
Nc4 Bxc4 19. Bxc4 h6 20. Nf3 Nh5 21. Kf1 Nhf4 22. Bxf4 Nxf4 23. Rad1 Rad8 24.
Rxd7 Rxd7 25. h4 ({Reject} 25. Nxe5 Rd2 $15) 25... h5 26. g3 ({But not} 26.
Nxe5 Rd2 $15) 26... Ng6 27. Ke2 Kf8 28. Rb1 f6 29. b4 axb4 30. cxb4 c6 31. a5
Ba7 32. Be6 Rc7 33. Rd1 Ke7 34. Bc4 (34. Bh3 {with more complications.} Nf8 35.
Ne1 g6 36. f3 Bd4 37. Nc2) 34... Nf8 35. Ne1 (35. Rc1 {is more complex.} Ne6
36. Bxe6 Kxe6 37. Nd2 Rd7 38. Nb3) 35... Rd7 36. Rxd7+ Kxd7 $11 {[%mdl 4096]
Endgame KBN-KBN} 37. Bf7 g6 38. Nc2 Ke7 39. Bc4 Ne6 40. b5 cxb5 41. Bxb5 Nd4+
42. Nxd4 {The position is equal.} Bxd4 43. a6 bxa6 44. Bxa6 {Weighted Error
Value: White=0.05/Black=0.06} 1/2-1/2

[Event "3rd Dvoretsky Memorial 2021"]
[Site "Moscow"]
[Date "2021.02.10"]
[Round "5.5"]
[White "Savchenko, Boris"]
[Black "Vitiugov, Nikita"]
[Result "0-1"]
[ECO "B41"]
[WhiteElo "2552"]
[BlackElo "2715"]
[Annotator "TA"]
[PlyCount "103"]
[EventDate "2021.02.10"]
[EventType "tourn"]
[EventCountry "RUS"]
[Tiebreak "Koya+Number of wins"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,103,29,31,29,59,43,37,15,80,80,86,102,81,86,89,47,52,-41,35,39,37,0,
98,66,70,0,0,0,0,0,0,-150,-152,-176,-135,-164,-165,-143,-149,-143,-133,-131,
-124,-257,-257,-253,-260,-232,-197,-195,-163,-414,-150,-168,-175,-247,-256,
-274,-258,-249,-151,-247,-190,-391,-382,-521,-231,-197,-183,-200,-169,-156,
-141,-238,-106,-410,-241,-233,-224,-354,-326,-636,-644,-584,-587,-573,-572,
-568,-552,-29960,-29959,-9345,-6403,-29991]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4.
Nxd4 a6 5. c4 Nf6 6. Nc3 Bb4 7. Qd3 {B41: Sicilian: Kan Variation: 5 c4.} d6 {
7...0-0 is the modern continuation.} 8. Nc2 Bxc3+ 9. bxc3 {White is slightly
better.} Nbd7 (9... O-O $11) 10. Qxd6 $16 Nxe4 {[%mdl 64] Double Attack} 11.
Qd4 {[%csl LRe4,LRg7]} Nef6 12. Ba3 {[#]} b6 $146 ({Predecessor:} 12... e5 13.
Qe3 Ng4 14. Qe2 f5 15. h3 Ngf6 16. O-O-O Ne4 17. Rd5 Qf6 18. Qe3 b6 {0-1 (66)
Ghukasyan,S (2207)-Serikbay,A (2135) Tarvisio 2017}) 13. O-O-O Bb7 14. Qe3 (14.
Bd6 $14) 14... Qc7 ({Better is} 14... Ne4 $1 $15) 15. Bd6 $1 $14 {[%cal Rd6c7]}
Qc6 16. f3 Nc5 (16... O-O-O $1 $11) 17. Nb4 Qa4 18. Bxc5 (18. Nd3 $1 $14) 18...
bxc5 $11 19. Qxc5 Qa3+ 20. Kb1 Rc8 21. Qb6 {[#]} ({White should play} 21. Qd6
$1 $11 Qxc3 22. Be2 (22. Nxa6 $2 Bxa6 23. Be2 Qa5 $19)) 21... O-O $1 $17 {
White must now prevent ...Bxf3!} 22. Nc2 (22. Qxb7 $2 Rb8 $19) 22... Qxc3 23.
Qb2 {[#]} (23. Qxb7 $2 Rb8 $19) 23... Qa5 (23... Qxb2+ $6 24. Kxb2 Rb8 25. Kc3
$11) 24. Ka1 (24. Qxb7 $2 Rb8 $19) 24... Bc6 25. Qb4 Qe5+ 26. Qb2 Qc7 27. Be2 (
27. Nb4 $17) 27... Ba4 $19 {And now ...Rb8 would win.} 28. Rd2 {[#]} Rb8 {
[%cal Rb8b2]} 29. Qa3 Qe5+ 30. Nd4 {[#]} Rfd8 $1 31. Rb1 $2 {[#]} (31. Qc3)
31... Rbc8 $1 32. Qb2 (32. Qc3 Qxh2) 32... Qxh2 33. c5 (33. g4 $142 Qc7 34. Qb4
) 33... Rb8 (33... Rxc5 34. Qb4 $11) 34. Qc1 Rxb1+ (34... Qxg2 35. Rxb8 Rxb8
36. Bb5 $16) 35. Kxb1 Rb8+ 36. Ka1 (36. Rb2 $17 {is a better defense.}) 36...
Nd5 ({Weaker is} 36... Qxg2 37. Bb5 $16) 37. Bxa6 $2 (37. Bc4) 37... Qe5 38.
Bc4 {and the idea Bxd5 leaves White hopeful.} Ne3 (38... Rb4 $142 39. Bxd5 Rxd4
40. Rxd4 Qxd4+ 41. Qb2 Qg1+ 42. Qb1 Qxb1+ 43. Kxb1 exd5) 39. Bb3 Bxb3 40. axb3
Nd5 {Hoping for ...Rxb3.} 41. Kb1 Rb4 42. Qb2 (42. Nc6 $17 {was worth a try.}
Rxb3+ 43. Ka2) 42... Qe1+ (42... Qe3 $19 {and Black stays clearly on top.
Threatens to win with ...h6.} 43. c6 h5) 43. Kc2 $2 {[%mdl 8192]} (43. Qc1 $17
Qe3 44. Ra2 Qd3+ 45. Qc2 Nc3+ {[%mdl 64] Double Attack} 46. Kb2 Qxc2+ 47. Nxc2
Nxa2 48. Kxa2) 43... Rb8 (43... Ne3+ $142 44. Kd3 Nf1) 44. Nc6 Rc8 45. Qa3 (45.
Qa2 {was necessary.}) 45... h6 ({Don't take} 45... Ne3+ 46. Kd3 $19) 46. Qa6 $2
{[#]} (46. Qa4) 46... Rxc6 $1 {[%mdl 576] Double Attack} 47. Qa8+ Kh7 48. Rxd5
Qe2+ {[%mdl 64] Double Attack} 49. Kc3 Ra6 50. Qe8 Qe1+ 51. Rd2 Ra2 52. Kd4 {
Weighted Error Value: White=0.71/Black=0.34} 0-1

[Event "3rd Dvoretsky Memorial 2021"]
[Site "Moscow"]
[Date "2021.02.11"]
[Round "6.1"]
[White "Zvjaginsev, Vadim"]
[Black "Vitiugov, Nikita"]
[Result "1/2-1/2"]
[ECO "B53"]
[WhiteElo "2614"]
[BlackElo "2715"]
[Annotator "TA"]
[PlyCount "106"]
[EventDate "2021.02.10"]
[EventType "tourn"]
[EventCountry "RUS"]
[Tiebreak "Koya+Number of wins"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,106,13,26,11,6,13,16,0,5,0,16,0,0,0,0,0,0,0,7,-16,22,20,24,31,122,121,
125,78,79,89,106,106,137,137,157,150,163,143,170,163,193,166,197,199,186,117,
195,117,242,241,258,239,257,250,254,250,237,183,219,225,210,168,176,18,18,18,
18,8,8,8,8,8,8,8,31,8,8,8,8,8,8,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-8,-8,-8,-8]} 1. e4
c5 2. Nf3 d6 3. d4 cxd4 4. Qxd4 Nf6 5. Be2 Nc6 6. Qe3 {B53: Sicilian: 2...d6:
Lines with Qxd4.} g6 7. O-O Bg7 8. h3 O-O 9. Rd1 Be6 10. c4 Nd7 11. Nc3 {
[%cal Bb1c3,Bc3d5,Bd5e7,Be7c6][%mdl 32]} Qb6 12. Nd5 Qxe3 13. Bxe3 {[#]} Nc5
$146 ({Predecessor:} 13... b6 14. Rab1 Nc5 15. Ng5 Rac8 16. b4 Na4 17. c5 Bxd5
18. exd5 Nc3 19. dxc6 Nxe2+ {0-1 (33) Garcia Ramos,D (2362)-Jimenez Ruano,A 
(2292) Barcelona 2020}) 14. e5 Nxe5 15. Nxe7+ Kh8 16. Rxd6 b6 (16... Na4 $14)
17. Nxe5 $16 Bxe5 18. Bd4 Bxd4 19. Rxd4 Rae8 20. Nc6 Bxh3 21. Bf3 Bf5 22. Nxa7
Nd3 23. b3 Ne1 {[#] With the idea ...Nc2.} 24. Bd1 Rd8 25. Nc6 Rxd4 26. Nxd4
Be4 27. Bf3 ({Better is} 27. f3 $18 Rd8 {[#]} 28. Kf2 $1 (28. fxe4 Rxd4 29. c5
bxc5 $16) 28... Rxd4 29. Kxe1) 27... Bxf3 (27... Nxf3+ $16 {was worth a try.}
28. Nxf3 (28. gxf3 Ba8 $14) 28... Bxf3) 28. Nxf3 {[%mdl 4096] Endgame KRN-KRN}
({But not} 28. gxf3 $6 Rd8 $16) (28. Rxe1 $18 Bg4 29. Nc6) 28... Nc2 (28...
Nxf3+ $16 29. gxf3 Rd8) 29. Rd1 $18 Kg7 30. Rd2 Nb4 31. a3 Nc6 32. Rd6 Rc8 33.
b4 Ne7 34. Ne5 ({Don't do} 34. Rxb6 $6 Rxc4 35. Rb7 Kf6 $16) 34... f6 {[#]} 35.
Re6 Nf5 (35... fxe5 36. Rxe7+) 36. Rc6 $2 Rxc6 $11 37. Nxc6 {Threatens to win
with Na7. KN-KN} Nd6 $1 38. a4 {Black must now prevent a5.} Nxc4 39. a5 bxa5
40. bxa5 Kf7 $1 41. a6 Nb6 (41... Ke6 {keeps more tension.} 42. Kh2 Kd6 43. a7
Nb6 44. Na5 Kc5) 42. a7 Ke6 {The position is equal.} 43. Kh2 Kd6 44. Na5 {
Nc4+! is the strong threat.} Kc5 45. Nb7+ Kc6 46. Nd8+ Kc7 47. Ne6+ Kb7 48. Nf8
Kxa7 49. Nxh7 Nd7 50. Kg3 Kb6 51. Kf4 Kc6 52. Nxf6 {[%mdl 64] Remove Defender}
Nxf6 53. Kg5 {[%mdl 64] Double Attack} Ne4+ {Black defended with fortune. 
Weighted Error Value: White=0.17/Black=0.16} 1/2-1/2

[Event "3rd Dvoretsky Memorial 2021"]
[Site "Moscow"]
[Date "2021.02.11"]
[Round "6.2"]
[White "Makarian, Rudik"]
[Black "Savchenko, Boris"]
[Result "0-1"]
[ECO "A40"]
[WhiteElo "2461"]
[BlackElo "2552"]
[Annotator "TA"]
[PlyCount "86"]
[EventDate "2021.02.10"]
[EventType "tourn"]
[EventCountry "RUS"]
[Tiebreak "Koya+Number of wins"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,86,14,21,0,0,0,0,0,20,16,39,11,8,0,9,0,24,21,37,0,64,57,51,35,30,0,0,
0,0,-94,-94,-80,-90,-89,-97,-81,0,-85,-85,-92,-83,-192,-185,-269,-268,-267,
-266,-634,-615,-597,-484,-462,-350,-275,-325,-655,-645,-6732,-6385,-29974,
-29975,-5497,-1243,-1056,-980,-962,-372,-369,-350,-406,-406,-422,-405,-1266,
-791]} 1. d4 e6 2. c4 b6 3. Nf3 Bb7 4. g3 Bb4+ 5. Nbd2 a5 6. Bg2 Nf6 7. O-O O-O
8. b3 {[#] E16: Queen's Indian: 4 g3 Bb7 5 Bg2 Bb4+.} a4 $146 ({Predecessor:} 
8... Bc3 9. Rb1 Nc6 10. Bb2 Bxb2 11. Rxb2 d5 12. e3 Qe7 13. Qb1 a4 14. bxa4
Rxa4 15. c5 Ba6 {1-0 (44) Fradkin,B (2465)-Erenska Barlo,H (2246) Hockenheim
2007}) 9. bxa4 Qe8 10. Rb1 {The position is equal.} Bxd2 11. Bxd2 Be4 12. Rb2
d6 13. a5 bxa5 14. Bg5 Nfd7 15. Bh3 h6 {[#] Hoping for ...Bxf3.} 16. Bc1 Ra7 (
16... Nc6 $11) 17. Nd2 $14 Bb7 18. e4 Nc6 {[%cal Bb8c6,Bc6b4,Bb4a2][%mdl 32]}
19. Nb1 (19. d5 $5 {[%cal Rb2b7]} Nce5 20. Rb1 $14) 19... Ba6 20. Na3 Nb6 21.
Rc2 (21. Bg2 $11 {keeps the balance.}) 21... Nb4 $17 22. Rc3 Nxa2 23. Rc2 Nb4
24. Rc3 Na2 25. Rc2 Nxc1 {White is on the road to losing.} 26. Qxc1 e5 27. c5 (
27. dxe5 $17 Qxe5 28. Qe3) 27... Bxf1 $19 ({Not} 27... exd4 28. cxb6 Bxf1 29.
Qxf1 $16) 28. cxb6 (28. Qxf1 $142 Na8 29. Nb5) 28... Bxh3 29. bxa7 Qa8 ({
Don't play} 29... exd4 30. f3 $19) 30. Nb5 $2 (30. Qe3 Qxa7 31. dxe5 Qxe3 32.
fxe3) 30... Qxe4 {[%csl Gh3][%cal Re4g2] [#]} 31. f3 Qb7 32. Rb2 c6 33. Nxd6
Qxa7 34. Rd2 (34. Qc5 Qxc5 35. dxc5) 34... exd4 35. g4 d3+ 36. Kh1 Qe3 37. Qd1
Rd8 38. Nf5 Qf4 39. Kg1 Re8 $2 (39... Qe5 40. f4 Qxf4 41. Rxd3 Rxd3 42. Ne7+
Kf8 43. Qxd3 Qxg4+ 44. Kf2 Kxe7 45. Qa3+ Kf6 46. Qc3+ Kg6 47. Qxc6+ Kh7 48.
Qc2+ g6) 40. Rxd3 Qc7 {Strongly threatening ...Qb6+.} 41. Qa1 {[%csl Gf5][%cal
Ra1g7]} f6 {Threatens to win with ...Re2.} 42. Qa2+ Kh8 {( -> ...Re1+)} 43. Qb2
(43. Ne3 $142) 43... Re1+ {Weighted Error Value: White=0.87/Black=0.31} 0-1

[Event "3rd Dvoretsky Memorial 2021"]
[Site "Moscow"]
[Date "2021.02.11"]
[Round "6.3"]
[White "Grachev, Boris"]
[Black "Kobalia, Mikhail"]
[Result "1-0"]
[ECO "D11"]
[WhiteElo "2619"]
[BlackElo "2587"]
[Annotator "TA"]
[PlyCount "57"]
[EventDate "2021.02.10"]
[EventType "tourn"]
[EventCountry "RUS"]
[Tiebreak "Koya+Number of wins"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,57,31,34,33,39,28,52,43,51,51,48,42,54,44,50,41,58,55,56,56,83,59,100,
83,89,97,86,95,129,133,142,131,197,226,216,212,278,243,244,144,295,289,273,287,
648,661,933,918,897,887]} 1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. e3 a6 5. Nbd2 Bf5 6.
Nh4 {D11: Slav Defence: 3 Nf3 sidelines and 3...Nf6 4 e3 Bg4.} Be6 7. Be2 {[#]}
g6 $146 ({Predecessor:} 7... Nbd7 8. O-O g6 9. b4 Bg7 10. Bb2 dxc4 11. Nxc4 O-O
12. Rc1 Nb6 13. Na5 Qc7 {0-1 (40) Saiyn,Z (2409)-Aradhya,G (2180) Porto Carras
2015}) 8. O-O {White is slightly better.} Bg7 9. b3 O-O 10. Bb2 Ne4 11. Nhf3 f5
12. Rc1 Kh8 13. Ne5 Nd7 14. Nd3 a5 15. a4 Qb6 16. Nf4 Bg8 17. cxd5 cxd5 18. Bb5
Nb8 19. Ba3 Nd6 20. Rc5 Ne4 {[#]} (20... Nc6 $16 21. Nxd5 Qd8) 21. Nxe4 $1 $18
({Much less strong is} 21. Nxd5 $6 Bxd5 22. Rxd5 Nc3 $16) 21... dxe4 {[#]} 22.
Bc4 Nc6 23. Bxg8 Rxg8 24. Ne6 (24. Rb5 $18 Qc7 25. Ne6) 24... Bf6 $2 {Loses
the game.} (24... Nb4 $16) 25. Rb5 Qa7 26. d5 Nd8 $2 {[#]} (26... Nb4 27. Qd2 (
27. Bxb4 axb4 28. d6 exd6 $18) 27... b6 28. Bxb4 axb4 29. Qxb4 Rgb8) 27. Bxe7
$1 {[%mdl 512] White is clearly winning.} Nxe6 (27... Bg7 28. Nxg7) 28. Bxf6+
Ng7 29. d6 {Weighted Error Value: White=0.09/Black=0.38} 1-0

[Event "3rd Dvoretsky Memorial 2021"]
[Site "Moscow"]
[Date "2021.02.11"]
[Round "6.4"]
[White "Inarkiev, Ernesto"]
[Black "Murzin, Volodar"]
[Result "1-0"]
[ECO "E92"]
[WhiteElo "2654"]
[BlackElo "2478"]
[Annotator "TA"]
[PlyCount "93"]
[EventDate "2021.02.10"]
[EventType "tourn"]
[EventCountry "RUS"]
[Tiebreak "Koya+Number of wins"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,93,49,52,67,60,70,68,92,71,97,82,78,22,19,27,15,12,14,-300,-287,-295,
-286,-337,-9,0,94,99,70,14,24,-22,0,-21,68,57,102,100,225,0,0,0,0,0,62,60,71,
67,193,191,339,311,276,195,662,654,656,647,618,139,145,0,0,0,0,0,0,-35,-42,
-295,-311,-303,-302,-328,-320,-310,309,306,673,666]} 1. d4 Nf6 2. c4 g6 3. Nc3
Bg7 4. e4 O-O 5. Nf3 d6 6. Be2 e5 7. Be3 Nc6 8. d5 Ne7 9. Nd2 c6 {E92: King's
Indian: Classical: 6 Be2 e5: 7 dxe5, 7 Be3 and Petrosian System without 7...
Nbd7.} 10. b4 Bd7 11. O-O {[#]} h5 $146 {White is slightly better.} ({
Predecessor:} 11... a6 12. Rc1 b5 13. a3 Qb8 14. dxc6 Bxc6 15. Nd5 Nexd5 16.
cxd5 Bd7 17. f3 Nh5 {0-1 (39) Zaltsman,V-Zaitsev,I Dubna 1972}) 12. f3 Kh7 13.
Nb3 cxd5 14. exd5 (14. cxd5 $16 Bh6 15. Bxh6 Kxh6 16. Qd2+ Kg7 17. Qe3) 14...
Nf5 $11 15. Bf2 Bh6 16. Qd3 h4 17. g4 $2 {[%mdl 8192]} (17. a4 $11 {and White
has nothing to worry.}) 17... hxg3 $1 $19 18. hxg3 Nh5 19. Ne4 {[#]} Rh8 $2 (
19... Nfxg3 $1 $19 {[%mdl 512]} 20. Nxg3 (20. Bxg3 $2 f5 $19) 20... Bf4) 20. f4
$1 $11 {[%cal Rf4e5]} exf4 (20... Nf6 $11 21. fxe5 Nxe4 22. Qxe4 Re8) 21. Bxh5
$16 (21. g4 $6 Nhg3 $11) 21... gxh5 22. Nd4 (22. Nxd6 $1 $14 Qf6 23. Ne4 (23.
Nxb7 $2 fxg3 24. Bxg3 Qg6 $19)) 22... Kg8 23. gxf4 Kf8 24. Kh1 Rg8 (24... Nxd4
$11 25. Qxd4 Bg7) 25. Rg1 Rg4 (25... Bxf4 $2 26. Qf3 $18) 26. Rxg4 hxg4 27. Rg1
$2 (27. Kg2 $1 $18) 27... Nxd4 $1 $11 28. Qxd4 {Intending Qh8+ and mate.} Bg7
29. Qd2 Kg8 ({Better is} 29... a5 $11) 30. Kg2 (30. Nxd6 $2 Qf6 $19) 30... a5
31. b5 {[%cal Bb4b5,Bb5b6][%mdl 32]} (31. Nxd6 axb4 32. Rh1 (32. Nxb7 Qf6 $17)
32... Qf6 $15) 31... Qc7 (31... Bf5 $14 32. Ng3 Qf6) 32. Qd3 $1 $18 Re8 (32...
Bf5 {might work better.}) 33. b6 Qb8 34. Ng5 Qc8 $2 (34... f5 35. c5 Bf6) 35.
Qh7+ $1 Kf8 36. Qh5 {[%csl Gg5][%cal Rh5f7]} Re7 37. c5 (37. Re1 $18 {is the
precise move to win. Threatening mate with Rxe7.} Qe8 38. Nh7+ Kg8 39. Qg5 $1 (
39. Rxe7 Qxe7 40. Ng5 Bf5 $17) 39... Rxe1 40. Nf6+ {[%mdl 64] Double Attack}
Kf8 41. Nxe8 Rxe8 42. f5) 37... Bf5 $16 {Hoping for ...Bg6.} (37... dxc5 $2 38.
Re1 $18) 38. Rc1 (38. Kg3 $1 $16) 38... Bg6 $1 $11 {[%cal Rg6h5]} 39. Qh4 Qf5
$36 {[%mdl 2048] Black has good play.} 40. cxd6 {Strongly threatening Ne6+!}
Re8 (40... Qxd5+ $6 41. Kh2 $16) 41. Rd1 Kg8 {[%mdl 1024] And now ...Bf6 would
win. Black has compensation.} (41... Qxf4 $2 42. d7 $18) 42. Ne6 $2 {[%mdl
8192]} Bf6 $1 $19 {[%cal Rf6h4]} (42... fxe6 43. d7 $16) 43. d7 {[%cal Rd7e8] 
[#]} Rd8 {[%mdl 512]} 44. Qh6 {[#]} (44. Ng5 Qxd7) 44... Qe4+ $1 ({And not} 
44... fxe6 45. dxe6 Qe4+ 46. Kh2 $11) ({Avoid the trap} 44... Rxd7 $2 45. Qf8+
Kh7 46. Rh1+ Bh5 47. Ng5+ Kg6 48. Qg8+ Kh6 49. Bc5 $18 (49. Nxf7+ $2 Rxf7 50.
Qxf7 Qe4+ 51. Kg1 Qb1+ 52. Kh2 Qxh1+ 53. Kxh1 Bxf7 $19)) (44... Qc2 45. Re1 $11
) 45. Kg1 Rxd7 $4 {[%mdl 8192] [#]} (45... fxe6 46. dxe6 g3 47. Bxg3 $11) (
45... g3 $19 {and all is fine.} 46. Bxg3 Qf3) 46. Re1 $1 $18 {[%cal Re1e4]}
Qxd5 (46... Qc2 47. Qf8+ Kh7 48. Ng5+ Bxg5 49. fxg5 f6 50. Qh6+ (50. gxf6 g3
$14) 50... Kg8 51. gxf6 g3 52. Bxg3 Qf5) 47. Nc7 {[%cal Re1e8] What a fight! 
Weighted Error Value: White=0.48/Black=0.71} 1-0

[Event "3rd Dvoretsky Memorial 2021"]
[Site "Moscow"]
[Date "2021.02.11"]
[Round "6.5"]
[White "Gunina, Valentina"]
[Black "Esipenko, Andrey"]
[Result "1/2-1/2"]
[ECO "D38"]
[WhiteElo "2427"]
[BlackElo "2677"]
[Annotator "TA"]
[PlyCount "125"]
[EventDate "2021.02.10"]
[EventType "tourn"]
[EventCountry "RUS"]
[Tiebreak "Koya+Number of wins"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,125,4,12,9,25,18,24,0,0,21,0,7,-1,18,22,8,23,-8,28,30,37,27,34,-61,
-61,-55,-57,-47,-56,-47,0,-14,48,38,46,50,87,75,69,75,99,87,114,97,131,139,118,
118,114,112,114,33,58,38,67,47,45,32,75,83,82,85,87,0,138,87,70,67,71,66,125,
143,141,131,121,79,85,-114,-108,-113,0,0,0,0,0,0,16,16,16,12,16,12,16,16,16,16,
16,16,16,17,20,16,16,16,16,16,20,12,16,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 e6 3.
Nf3 d5 4. Nc3 Bb4 5. Qa4+ Nc6 6. e3 O-O 7. Qc2 {is now debated instead of 7.
Bd2. D38: Queen's Gambit Declined: Ragozin Defence (4 Nf3 Bb4).} Re8 8. Bd2 Bf8
9. a3 {White has an edge.} e5 10. dxe5 Nxe5 11. cxd5 Nxf3+ 12. gxf3 Nxd5 13.
O-O-O {[#]} a5 $146 ({Predecessor:} 13... c6 14. h4 Qf6 15. Bd3 h6 16. f4 Be6
17. f5 Bd7 18. e4 Nb6 19. f4 h5 {0-1 (35) Martirosyan,H (2622)-Maghsoodloo,P 
(2676) chess.com INT 2020}) 14. Bc4 c6 15. Nxd5 cxd5 {[#]} 16. Bc3 $1 Be6 {[#]}
17. Bd3 ({White should play} 17. Kb1 $1 $14) 17... Qh4 $1 $15 18. Kb1 Rec8 19.
Qd2 Qh5 {Threatens to win with ...d4.} 20. Be2 Qh4 21. Bb5 Rxc3 22. Qxc3 $14 ({
Don't play} 22. bxc3 Bxa3 23. Ka2 Bf8 $17) 22... Qxf2 23. f4 Rc8 24. Qd2 Qf3
25. Rhf1 Qh5 26. Bd3 d4 {And now ...Qd5 would win.} 27. f5 dxe3 28. Qxe3 Bd7
29. Qd4 Bc6 30. Rd2 Qg5 {[#]} 31. Bc2 (31. f6 $1 $16 {[%mdl 512]}) 31... Be7 $1
32. Rg1 Qh6 33. Re2 Bf6 34. Qb6 Qh4 35. Rge1 $36 {[%mdl 2048] Keeping Black
busy.} h5 36. Qxa5 Rd8 37. Qb4 (37. Rd1 $16 Rxd1+ 38. Bxd1) 37... Qh3 (37...
Qxb4 $11 38. axb4 Rd4) 38. Qb3 ({White should try} 38. Qf4) 38... Qg4 $16 39.
h3 Qf4 40. Be4 {Black must now prevent Bxc6.} Bxe4+ (40... Bh4 $14) 41. Rxe4
Qxf5 42. Qc2 {Intending Re8+ and mate.} ({Stronger than} 42. Qxb7 Rd2 $11)
42... Qd7 43. h4 g6 44. Rf1 $2 {[#]} (44. Rf4 $16 {and life is bright.} Bg7 45.
Qb3) 44... Bxb2 $17 {[%mdl 512]} 45. Ref4 Bxa3 (45... Bg7 $17 {Hoping for ...
Qb5+.} 46. Rxf7 Qb5+ 47. Ka2 Qd5+ 48. Qb3 Qd2+ 49. Kb1 Kh8) 46. Qb3 $11 {
The position is equal.} Qd3+ 47. Qxd3 Rxd3 48. Rxf7 {[%mdl 4096] Endgame
KRR-KRB} Re3 49. Rxb7 {aiming for Rff7.} Be7 50. Rf4 Re6 51. Kc2 Rf6 52. Re4 (
52. Rc4 {keeps more tension.} Re6 53. Rcc7 Kf7 54. Kc3 Kf8 55. Rc4) 52... Bf8
53. Kd3 Rf7 54. Rb6 Kh7 55. Ree6 Rg7 56. Rb8 Be7 57. Re4 Bf6 58. Rb6 Rd7+ 59.
Ke2 Kg7 60. Ree6 Re7 61. Rxe7+ Bxe7 62. Rb7 Kf8 63. Rb8+ {Weighted Error Value:
White=0.18/Black=0.17} 1/2-1/2

[Event "3rd Dvoretsky Memorial 2021"]
[Site "Moscow"]
[Date "2021.02.11"]
[Round "7.1"]
[White "Esipenko, Andrey"]
[Black "Zvjaginsev, Vadim"]
[Result "0-1"]
[ECO "A45"]
[WhiteElo "2677"]
[BlackElo "2614"]
[Annotator "TA"]
[PlyCount "64"]
[EventDate "2021.02.10"]
[EventType "tourn"]
[EventCountry "RUS"]
[Tiebreak "Koya+Number of wins"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,64,-8,0,-5,0,0,0,-7,-7,-22,24,23,17,29,27,33,35,-57,-59,-100,-97,-90,
-93,-97,-80,-160,-160,-154,-139,-157,-110,-124,-122,-112,-100,-104,-93,-157,
-147,-152,-116,-128,-122,-147,-166,-152,-138,-150,-139,-141,-141,-141,-145,
-174,-138,-646,-643]} 1. d4 Nf6 2. Nc3 d5 3. Bf4 e6 4. Nb5 Na6 5. e3 Be7 6. Nf3
{D00: 1 d4 d5: Unusual lines.} O-O 7. h4 {[#]} c6 $146 ({Predecessor:} 7... Ne4
8. Bd3 c6 9. Nc3 f5 10. Ne2 Nb4 11. a3 Nxd3+ 12. cxd3 Nd6 13. Rc1 Nf7 {1-0 (42)
Goryachkina,A (2579)-Ozturk,K (2330) chess.com INT 2020}) 8. Nc3 {The position
is equal.} c5 9. h5 Ne4 10. Nxe4 dxe4 11. Ne5 cxd4 12. exd4 Nb4 13. Bc4 {[#]} (
13. c3 $14) 13... Qxd4 $1 $15 {White must now prevent ...f6.} 14. c3 (14. O-O
Qxb2) 14... Qxd1+ 15. Rxd1 Nd5 {[%cal Bb4d5,Bd5f4,Bf4d3][%mdl 32]} 16. Bg3 Rd8
17. Bh4 (17. Bb3 $142) 17... f6 $17 18. Ng4 Bd7 19. Rd4 b5 20. Bb3 Nf4 21. Bg3
Nd3+ ({Worse is} 21... Nxg2+ 22. Kf1 $16) 22. Ke2 {[#] Threatens to win with
Rxd7!} Nc5 23. Ne3 ({Better is} 23. Bc7) 23... Nxb3 24. axb3 {With the idea
Bc7.} Bc6 25. Rxd8+ Rxd8 26. h6 g5 27. Ra1 Bc5 28. Ng4 Kf7 29. Be5 f5 30. Bc7 {
Strongly threatening Ne5+.} Rc8 31. Ne5+ Kf6 32. Ra6 $2 {[%mdl 8192]} (32. Nxc6
$17 Rxc7 33. Nb8) 32... Be8 {Weighted Error Value: White=0.45/Black=0.07} ({Not
} 32... Rxc7 33. Rxc6 Bb6 34. Rxc7 $17) 0-1

[Event "3rd Dvoretsky Memorial 2021"]
[Site "Moscow"]
[Date "2021.02.11"]
[Round "7.2"]
[White "Murzin, Volodar"]
[Black "Gunina, Valentina"]
[Result "1-0"]
[ECO "B12"]
[WhiteElo "2478"]
[BlackElo "2427"]
[Annotator "TA"]
[PlyCount "147"]
[EventDate "2021.02.10"]
[EventType "tourn"]
[EventCountry "RUS"]
[Tiebreak "Koya+Number of wins"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,147,3,10,0,0,0,0,-87,-74,-85,-49,-52,-41,-67,-43,-37,-22,-100,-101,
-106,-122,-98,-106,-141,-160,-149,-102,-111,-103,-115,-81,-77,-85,-107,-114,
-131,-136,-137,-127,-137,-119,-211,-217,-325,-316,-313,-287,-311,-299,-715,
-138,-127,-86,-80,-55,-56,-58,-57,-60,-60,-63,-62,-62,-60,-55,-63,-36,-51,-36,
-47,-49,-43,-34,-36,-9,-52,-23,-50,-50,-51,-54,-100,-102,-103,-100,-118,-112,
-100,-97,-121,-124,-182,-183,-237,-184,-169,-124,-163,-37,-38,-43,-49,0,-50,
-29,-49,-36,-39,-27,-38,0,-25,-25,-25,-8,-8,-8,-10,0,0,0,0,0,0,8,8,66,65,59,15,
81,89,89,95,132,132,127,125,29973,29968]} 1. e4 c6 2. d4 d5 3. f3 e6 4. Nc3 Bb4
5. Bd2 Nf6 {[#]} 6. a3 $146 {B12: Caro-Kann: Advance Variation.} ({Predecessor:
} 6. e5 Nfd7 7. Nce2 Qb6 8. c3 Be7 9. b4 a5 10. a3 f6 11. f4 fxe5 12. fxe5 O-O
13. Nf3 {1-0 (53) Saydaliev,S (2385)-Ezat,M (2408) Chess.com INT 2020}) 6...
Bxc3 7. bxc3 dxe4 8. Qe2 (8. fxe4 $11 e5 9. Nf3) 8... Qd5 9. Nh3 e5 10. Ng5 {
[%cal Rf3e4]} Bf5 11. dxe5 Qxe5 12. g4 $1 {[%cal Rg4f5]} Bd7 13. Bg2 (13. Nxe4
$11 Nxe4 14. Qxe4 Qxe4+ 15. fxe4) 13... O-O $17 14. O-O Qc5+ 15. Be3 Qxc3 16.
Nxe4 Nxe4 17. fxe4 Be6 18. Qf2 Nd7 19. g5 Ne5 {Threatens to win with ...Ng4.}
20. Bd4 Qa5 21. Qg3 Nc4 22. Kh1 Rfd8 23. Rfd1 Rd7 24. Rd3 Qc7 25. Qf2 (25. Qxc7
$17 {was necessary.} Rxc7 26. a4) 25... Ne5 $19 26. Rd2 (26. Rg3 {might work
better.}) 26... Ng4 {[%csl Gg4][%cal Rc7h2]} 27. Qg1 Qf4 {[%mdl 64] Double
Attack} 28. Rad1 Rad8 ({Don't take} 28... Qxg5 29. Bf3 $19) ({Not} 28... Rxd4
29. Rxd4 Qxg5 30. Bf3 $15) 29. Rd3 $2 {[#]} (29. h3 c5 30. hxg4 Qxg4 31. Be3
Rxd2 32. Rxd2 Rxd2 33. Bxd2 Qh5+ 34. Qh2 Qd1+ {[%mdl 64] Double Attack} 35. Qg1
Qxd2 36. Qxc5) 29... Bc4 $2 (29... Rxd4 $1 $19 {[%mdl 512] is more deadly.} 30.
Rf1 Qd6 31. Rxd4 Qxd4 32. Qxd4 Rxd4) 30. Be3 $17 Rxd3 31. Rxd3 Rxd3 32. Bxf4 {
[#]} Rd1 {[%cal Rg4f2]} 33. h3 (33. Qxd1 Nf2+) 33... Nf2+ ({Avoid the trap} 
33... Rxg1+ $2 34. Kxg1 Be2 35. hxg4 $18) 34. Kh2 Rxg1 35. Kxg1 $15 {[%mdl
4096] Endgame KBB-KBN} Nd1 36. Bf3 Nc3 37. Kf2 a6 38. Be5 Na4 (38... Nb5 {
looks sharper.} 39. a4 Na3 40. Bd1 Be6 41. h4 Nc4) 39. Ke3 Be6 40. h4 Nb6 41.
Be2 Nd7 42. Bd4 g6 43. Kd2 Kf8 44. Kc3 Ke7 45. h5 c5 46. Be3 Kd6 47. hxg6 hxg6
48. Bf4+ Kc6 49. Bf1 b5 50. Be2 (50. Bd2 $17) 50... Nb6 $19 51. Bg3 (51. Kd2
$142) 51... a5 52. Kb2 Bh3 53. Be1 Bg2 (53... Na4+ $19 54. Kc1 b4) 54. Bxa5 $15
Bxe4 55. Kc1 Bd5 56. Kd2 (56. Bxb6 $5 Kxb6 57. c4 $11) 56... Nd7 57. Bd8 Nf8
58. Ke3 Ne6 59. Bf6 Nf8 60. Be7 Nd7 61. Kf4 Be6 62. Bf3+ Kc7 63. Be2 c4 64. Bf3
Nb6 65. Ke5 Bf5 66. c3 Na4 67. Bb4 {Bd5 is the strong threat.} Nb2 (67... Be6
$1 $11) 68. Bd5 $1 $14 Nd3+ 69. Kf6 Nf4 (69... Kd7 $1 $11 {keeps the balance.})
70. Bxf7 $16 Kd7 71. Bc5 Kc6 72. Bd4 Kd7 73. Be3 Nd5+ $2 {[%mdl 8192]} 74. Bxd5
{Both players deserved the win here.  Weighted Error Value: White=0.29/Black=0.
26} 1-0

[Event "3rd Dvoretsky Memorial 2021"]
[Site "Moscow"]
[Date "2021.02.11"]
[Round "7.3"]
[White "Kobalia, Mikhail"]
[Black "Inarkiev, Ernesto"]
[Result "1/2-1/2"]
[ECO "C84"]
[WhiteElo "2587"]
[BlackElo "2654"]
[Annotator "TA"]
[PlyCount "276"]
[EventDate "2021.02.10"]
[EventType "tourn"]
[EventCountry "RUS"]
[Tiebreak "Koya+Number of wins"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,276,15,0,16,13,13,18,17,24,14,13,26,20,20,15,35,20,26,22,53,25,25,22,
12,18,54,24,34,20,25,15,112,104,120,122,122,131,111,111,111,102,129,55,118,112,
158,156,158,147,161,104,104,95,104,92,87,92,83,83,93,78,75,33,127,133,152,0,0,
0,26,36,50,69,93,56,202,202,196,194,201,189,196,196,184,177,189,179,204,186,
185,128,138,95,89,60,47,47,85,14,120,26,227,244,241,190,185,125,595,242,569,
226,310,308,304,253,273,143,144,50,52,52,54,54,83,8,8,0,88,29,61,0,61,0,8,8,8,
8,8,8,8,8,8,8,8,8,8,8,8,8,8,0,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
8,8,8,0,0,0,8,8,8,8,8,8,8,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,8,8,8,0,8,
0,8,0,8,0,0,0,0,0,0,0,8,8,8,8,8,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,8,0,0,0,0,0,
0,0,0,0,0,0,0,0,0]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. d3
b5 7. Bb3 d6 8. a3 O-O 9. Nc3 Na5 $1 {[%mdl 4] now scores much better than the
old 9...Bg4. C77: Ruy Lopez: 3...a6 4 Ba4 Nf6, unusual lines.} 10. Ba2 Be6 11.
b4 Bxa2 12. Rxa2 Nc6 13. Bg5 Qd7 14. Bxf6 Bxf6 15. Nd5 a5 16. Nxf6+ gxf6 {[#]}
17. bxa5 $5 $146 {[%mdl 8] New and interesting.} ({Predecessor:} 17. Rb2 axb4
18. axb4 f5 19. Nh4 f4 20. Nf5 Kh8 21. d4 Rg8 22. Rb3 Rg5 23. dxe5 Nxe5 {
1-0 (40) Bacrot,E (2722)-Gretarsson,H (2565) chess.com INT 2018}) 17... Qg4 18.
Rb2 Rxa5 19. h3 Qh5 20. Qb1 f5 21. exf5 Qxf5 22. Rxb5 Rxa3 23. Rb7 $36 {
[%mdl 2048] Black is under pressure.} Qd7 (23... Rc8 $11 {keeps the balance.})
24. Qc1 $16 Ra7 25. Qg5+ Kh8 26. Rxa7 Nxa7 27. Qf6+ Kg8 28. Ra1 Nc8 29. Qg5+
Kh8 30. Qh6 {[%cal Rh6f8]} Kg8 {[#]} 31. Ra4 $3 {[%cal Ra4g4][%mdl 512]} f5 (
31... Qxa4 $2 {is the wrong capture.} 32. Ng5 $18) 32. Rh4 Rf7 33. Rh5 (33. Ng5
$18 Re7 34. Qf6) 33... Rg7 34. Nh4 Ne7 35. Rg5 Rxg5 36. Qxg5+ Kf7 37. Qh6 $1
Kg8 38. g3 f4 39. g4 Qe8 ({Black should play} 39... Nc6 $1 $14) 40. Qg5+ Kf8
41. c4 $2 (41. d4 $1 $16) 41... Qf7 $11 42. c5 Qg7 43. Qh5 dxc5 44. Nf3 Nc6 45.
Qf5+ {[%mdl 1024] White has strong compensation.} Ke7 (45... Qf7 $14) 46. Qc8
$1 $18 {[%cal Rc8c7]} Kd6 47. Nd2 $1 {[%cal Rd2e4] aiming for Ne4+.} Nd4 48.
Ne4+ Kc6 49. Qa6+ $1 Kd7 50. Nxc5+ Ke7 51. Qc8 Kd6 52. Ne4+ Kc6 53. Qa6+ (53.
Kg2 $18) 53... Kd7 $16 54. Nf6+ Kd8 55. Qa8+ (55. Kg2 {is more complex.} Qg6
56. Qa8+ Ke7 57. Nd5+ Kd7 58. Qf8) 55... Ke7 56. Nd5+ Ke6 57. Qb7 (57. Qd8 $16
c6 58. Nc3) 57... Kd6 {[#]} (57... Qd7 $11 {remains equal.} 58. Nxc7+ Kd6 59.
Qb6+ Qc6 60. Ne8+ Ke7 61. Qxc6 Nxc6) 58. Nc3 ({White should try} 58. Nb6 $1 $16
{[%mdl 512]}) 58... f3 $2 (58... h5 $1 $11) 59. Ne4+ $18 Kd7 60. Qd5+ Ke8 61.
Nc5 (61. Kh1 $18) 61... Qf6 $2 {[%mdl 8192]} (61... c6 $16 62. Qd6 Qe7 63. Qb8+
Kf7) 62. Qd7+ Kf8 {[#]} 63. Qc8+ $2 (63. Qxd4 $3 {[%mdl 512]} exd4 64. Nd7+ {
[%mdl 64] Double Attack} Kf7 65. Nxf6 Kxf6 66. Kh2) 63... Kg7 64. Qxc7+ Kh6 65.
Ne4 Ne2+ 66. Kh1 (66. Kf1 $18 Qf4 67. Qc6+ Kg7 68. Ke1) 66... Qf4 $16 67. g5+ (
67. Qd6+ $16 Kg7 68. Qc7+ Kf8 69. Qc5+ Kf7 70. Qc4+ Kg7 71. Qc7+ Kf8 72. Qc8+
Kg7 73. Qd7+ (73. Qc7+ Kf8 $16) 73... Kg8 74. Qd8+ Kg7 75. Qg5+ Qxg5 76. Nxg5)
67... Kg6 $14 68. Qd6+ Kf7 69. Qd7+ Kf8 {[#]} 70. Qd8+ (70. Qc7 $1 $16) 70...
Kf7 $11 71. Qd7+ (71. Qd5+ $11 Kf8 72. Qc5+ Kf7 73. Qc4+ Kg7 74. Qc7+ Kg6 75.
Qc6+ Kf7 76. Qc7+ Kg6) 71... Kf8 $16 {[#]} 72. Qc8+ (72. Qc7 $1 $16) 72... Kg7
73. Qc7+ (73. Qb7+ {keeps more tension.} Kg6 74. Qc6+ Kg7 75. Qh6+ Kh8 76. Qf6+
) 73... Kg6 $1 74. Qd6+ (74. Qc6+ $14 Kf7 75. Qc7+ Kg6) 74... Kf7 $1 $11 {
( -> ...Qc1+). The position is equal.} 75. Qf6+ (75. Qc6 {feels hotter.} Qc1+
76. Qxc1 Nxc1 77. Kh2 Nxd3 78. Kg3) 75... Qxf6 76. Nxf6 {[%mdl 4096] Endgame
KN-KN} Nf4 77. Kh2 Kg6 78. Kg3 Kxg5 79. Nxh7+ Kg6 80. Nf8+ Kf5 81. Kxf3 Nxh3
82. Nd7 Nf4 83. Nc5 Nd5 84. Ne4 Nb4 85. Ng3+ Ke6 86. Ke4 Nd5 87. Ne2 Nf6+ 88.
Ke3 Nd5+ 89. Kf3 Kf5 90. Ng3+ Ke6 91. Ne4 Kf5 92. Nd6+ Ke6 93. Nc4 Nf6 94. Ne3
Nd7 95. Ng4 Nc5 96. Ke3 Nd7 97. f3 Kf5 98. Ke2 Kf4 99. Ne3 Nc5 100. Nd5+ Kf5
101. Ke3 Nd7 102. Nc3 Nf6 103. Ke2 Nh5 104. Nd5 Ke6 105. Ne3 Nf4+ 106. Kd2 Kd6
107. Ng4 Kd5 108. Ne3+ Kd4 109. Nc2+ (109. Nd1 {is interesting.} Nxd3 110. Nc3
Nc5 111. Nb5+ Kc4 112. Nc7) 109... Kd5 110. Ke3 Ng2+ 111. Ke2 Nf4+ 112. Kd2 Kc5
113. Ke3 Kd5 114. Nb4+ Kc5 115. Na6+ Kd6 116. Nb4 Ne6 (116... Kc5 {looks
sharper.}) 117. Nc2 Kd5 118. Kd2 Kd6 119. Ne3 Kc5 120. Nf5 Kd5 (120... Nd4 $5 {
[%cal Rd4f5]} 121. Nxd4 Kxd4 $11) 121. Ke3 Nc5 122. Ne7+ Kd6 123. Ng6 {And now
Nxe5! would win.} Ne6 124. Nh8 Kd5 125. Nf7 Nd4 126. Nh6 Nc2+ 127. Kf2 Ke6 128.
Ng4 Kd6 129. Ke2 Ke6 130. Ne3 Nd4+ 131. Kf2 Kd6 132. Nd1 Ke6 133. Nc3 Nc2 134.
Nb5 Kf5 135. Ke2 Kf4 136. Nc7 Nd4+ 137. Kf2 Nxf3 138. Nd5+ Kg4 {Black escapes
into a draw.  Weighted Error Value: White=0.17/Black=0.29} 1/2-1/2

[Event "3rd Dvoretsky Memorial 2021"]
[Site "Moscow"]
[Date "2021.02.11"]
[Round "7.4"]
[White "Savchenko, Boris"]
[Black "Grachev, Boris"]
[Result "1/2-1/2"]
[ECO "C11"]
[WhiteElo "2552"]
[BlackElo "2619"]
[Annotator "TA"]
[PlyCount "91"]
[EventDate "2021.02.10"]
[EventType "tourn"]
[EventCountry "RUS"]
[Tiebreak "Koya+Number of wins"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,91,2,7,21,8,20,19,18,30,28,15,83,82,95,26,29,19,21,27,17,21,36,21,36,
36,48,43,45,43,48,22,38,39,92,87,93,91,74,71,87,96,77,34,117,87,79,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5
dxe4 5. Nxe4 Nbd7 6. Nxf6+ Nxf6 7. Nf3 h6 8. Bh4 c5 9. Bb5+ Bd7 10. Bxd7+ Qxd7
11. Qe2 {11.Qe2 was played by the boomers.} cxd4 {C10: French with 3 Nc3:
Unusual Black 3rd moves and 3...dxe4.} 12. O-O-O Bc5 13. Qe5 Qe7 14. Nxd4 O-O
15. Rhe1 {[#] Threatens to win with Bxf6.} Bxd4 $146 (15... Rac8 $11) ({
Predecessor:} 15... Rfd8 16. f4 Rd5 17. Qxd5 exd5 18. Rxe7 Bxe7 19. Nf5 Bd8 20.
Bxf6 Bxf6 21. Rxd5 Re8 22. c3 h5 23. Nd6 Rd8 24. Rd2 {1-0 (24) Anand,V (2781)
-Gurevich,M (2644) Bastia 2004}) 16. Rxd4 $16 Rfd8 17. Bxf6 ({White should try
} 17. Red1 $16) 17... gxf6 $11 18. Qg3+ (18. Qe3 {feels hotter.} Rxd4 19. Qxd4
Rd8 20. Qg4+ Kh7 21. Qe4+) 18... Kh7 19. Qd3+ f5 20. g3 Rxd4 21. Qxd4 {[%mdl
4096] Endgame KQR-KQR} b6 22. Rd1 Rc8 23. Qd7 Rc7 24. Qxe7 Rxe7 $14 {KR-KR} 25.
c4 Rc7 26. b3 {[%cal Bb2b3,Bb3b4,Bb4b5][%mdl 32]} b5 ({Better is} 26... Kg6 $14
) 27. Kc2 $16 bxc4 {[#]} 28. b4 f4 29. Kc3 fxg3 30. hxg3 Kg6 31. b5 {[%mdl
1024] White has strong compensation.} Kf5 (31... e5 $14) 32. a4 e5 33. a5 (33.
Rh1 $16) 33... Kg4 $11 {The position is equal.} 34. Rb1 {Hoping for b6.} Kf3
35. Rb2 f5 36. b6 axb6 37. axb6 Rc8 38. b7 Rb8 39. Kxc4 {Threatening Kd5.} f4
40. gxf4 exf4 41. Kd5 h5 42. Ke5 h4 43. Rb3+ Kg2 44. Kxf4 h3 45. Rg3+ Kxf2 46.
Rf3+ {Weighted Error Value: White=0.10/Black=0.12} 1/2-1/2

[Event "3rd Dvoretsky Memorial 2021"]
[Site "Moscow"]
[Date "2021.02.11"]
[Round "7.5"]
[White "Vitiugov, Nikita"]
[Black "Makarian, Rudik"]
[Result "1-0"]
[ECO "E19"]
[WhiteElo "2715"]
[BlackElo "2461"]
[Annotator "TA"]
[PlyCount "55"]
[EventDate "2021.02.10"]
[EventType "tourn"]
[EventCountry "RUS"]
[Tiebreak "Koya+Number of wins"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,55,44,25,41,37,50,29,50,54,54,54,54,52,54,47,46,52,42,44,52,36,38,32,
43,37,83,83,116,114,108,100,114,106,164,35,489,489]} 1. d4 Nf6 2. c4 e6 3. Nf3
b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 Be4 {9...d6
gains popularity.} 10. Rd1 Bf6 11. Bf4 d6 {E19: Queen's Indian: Old Main Line
with 7...Ne4 8 Qc2 Nxc3 8 Qxc3.} 12. Qe3 Bb7 13. Qd3 {Ng5 is the strong threat.
} Nd7 {[#]White has an edge.} 14. Ng5 $1 Bxg5 15. Bxb7 Rb8 16. Bxg5 $1 Qxg5 17.
Bc6 Rbd8 18. b4 Nb8 {[#]} 19. Bf3 $146 ({Predecessor:} 19. Bg2 c5 20. Qa3 cxb4
21. Qxa7 Qa5 22. Qxa5 bxa5 23. a3 b3 24. a4 Rc8 25. Rac1 {0-1 (36) Mihic,B 
(2377)-Savic,M (2539) Belgrade 2007}) 19... c5 20. Qa3 cxb4 21. Qxb4 Qe7 22. a4
Qc7 23. a5 Nc6 24. axb6 axb6 25. Qb5 Rc8 {[#]} 26. Ra6 $1 Na5 (26... Ne7 $16)
27. Rxb6 (27. c5 $1 $18 dxc5 28. Rxb6 (28. Qxb6 Qxb6 29. Rxb6 Nc4 $11)) 27...
Rb8 {[%mdl 8192]} 28. c5 {Weighted Error Value: White=0.14/Black=0.49} 1-0

[Event "3rd Dvoretsky Memorial 2021"]
[Site "Moscow"]
[Date "2021.02.11"]
[Round "8.1"]
[White "Zvjaginsev, Vadim"]
[Black "Makarian, Rudik"]
[Result "1-0"]
[ECO "C44"]
[WhiteElo "2614"]
[BlackElo "2461"]
[Annotator "TA"]
[PlyCount "63"]
[EventDate "2021.02.10"]
[EventType "tourn"]
[EventCountry "RUS"]
[Tiebreak "Koya+Number of wins"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,63,0,0,0,0,0,0,-12,-4,-10,80,80,80,78,89,68,68,75,69,70,57,62,72,76,
85,81,81,98,123,91,100,99,219,156,207,197,204,185,159,176,229,220,321,177,166,
174,191,156,191,188,212,215]} 1. e4 e5 2. Nf3 Nc6 3. g3 Nf6 4. d3 d5 5. exd5
Nxd5 6. Bg2 g6 7. O-O Bg7 8. Nc3 {C44: Ponziani Opening and Scotch Gambit.}
Nxc3 9. bxc3 O-O 10. Rb1 {The position is equal.} Rb8 {[#]} 11. Ng5 $146 {
And now Bxc6 would win.} ({Predecessor:} 11. Re1 Bg4 12. h3 Be6 13. a4 b6 14.
a5 Qd7 15. axb6 Rxb6 16. Rxb6 cxb6 17. Ng5 Bd5 18. Ne4 f5 19. c4 {1/2-1/2 (19)
Chatalbashev,B (2571)-Hammer,J (2622) Kragero 2018}) 11... h6 {[#]} (11... Na5
$11 {keeps the balance.}) 12. Nxf7 $1 $16 Rxf7 13. Bxc6 {[%mdl 64] Pin} Bh3 14.
Bg2 ({But not} 14. Bxb7 $2 Bxf1 15. Be3 Bh3 $19) 14... Bxg2 15. Kxg2 Qd5+ 16.
Kg1 Qxa2 17. Be3 a6 18. Ba7 Ra8 19. Rxb7 Qd5 20. Qb1 h5 21. Qb3 Qxb3 22. cxb3
Rd7 (22... c6 $16 23. Rxf7 Kxf7) 23. Be3 a5 (23... Rxd3 $16 24. Rxc7 e4) 24.
Ra1 $18 Rxd3 25. Rxc7 e4 26. Ra4 Bxc3 (26... Be5 $142 27. Rc5 Bxc3) 27. Rxe4
Bb2 (27... Bb4 $142 28. Re6 Rd6 29. Rxd6 Bxd6) 28. Rb7 (28. Re6 $142) 28... Rd6
{White is clearly better.} 29. Kg2 Bf6 30. Ra4 Rda6 31. Bb6 Bc3 32. Rc4 {
Black got outplayed after the opening.  Weighted Error Value: White=0.17/
Black=0.24} 1-0

[Event "3rd Dvoretsky Memorial 2021"]
[Site "Moscow"]
[Date "2021.02.11"]
[Round "8.2"]
[White "Grachev, Boris"]
[Black "Vitiugov, Nikita"]
[Result "1/2-1/2"]
[ECO "A48"]
[WhiteElo "2619"]
[BlackElo "2715"]
[Annotator "TA"]
[PlyCount "85"]
[EventDate "2021.02.10"]
[EventType "tourn"]
[EventCountry "RUS"]
[Tiebreak "Koya+Number of wins"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,85,0,18,17,23,13,29,18,34,0,43,39,44,42,39,30,36,11,33,27,27,46,34,
10,12,7,26,18,24,-9,-6,-7,46,0,0,0,0,0,0,0,0,0,542,1,16,16,17,6,42,54,89,66,69,
11,15,15,8,0,8,0,0,0,0,1,31,27,17,23,83,0,0,0]} 1. d4 Nf6 2. Nf3 g6 3. Nbd2 Bg7
4. e4 O-O 5. Bd3 d6 6. O-O Nc6 7. c3 e5 8. Re1 Nh5 {[%cal Re5d4]} 9. Nb3 {
B07: Pirc Defence: Miscellaneous Systems.} a5 10. Bg5 Bf6 11. Bh6 {White has
an edge.} Bg7 12. Bg5 f6 (12... Bf6 $5 {[%cal Rf6g5]} 13. Be3 exd4 14. Nbxd4 (
14. Nfxd4 a4 $11) 14... Ne5 $11) 13. Be3 a4 14. Nbd2 {[#]} Qe8 $146 ({
Predecessor:} 14... a3 15. b4 Kh8 16. b5 Ne7 17. b6 c6 18. Qb3 Nf4 19. Bf1 Be6
20. Qb4 d5 21. dxe5 fxe5 22. Bc5 Re8 {1/2-1/2 (47) Damaso,R (2440)-Strikovic,A
(2565) Vila Real de Santo Antonio 1998}) 15. Bb5 (15. Nh4 {looks sharper.} Ne7
16. g3 b5 17. Be2 Bd7 18. Bf3) 15... Bd7 $1 16. Bxa4 Nxd4 $1 17. Bxd7 Nxf3+ 18.
Nxf3 Qxd7 19. Qb3+ Kh8 $1 20. Qxb7 f5 21. exf5 gxf5 22. Rad1 e4 {[#] Threatens
to win with ...Rab8.} 23. Nd4 Rxa2 ({Black should play} 23... f4 $11 24. Bc1
Bxd4 25. Rxd4 Nf6) 24. Qd5 Rxb2 25. Ne6 Re8 26. Nxg7 Kxg7 27. c4 Kg6 28. c5 {
[%cal Rc5d6]} Re6 $2 {[%mdl 8192] [#]} (28... f4 $11 {and Black has nothing to
worry.} 29. Bd4 Rb5) 29. cxd6 $2 (29. g4 $1 $18 {[%cal Rg4f5]} Re7 30. cxd6
cxd6 31. gxh5+ Kxh5 32. Ra1) 29... Rxd6 30. Qg8+ Ng7 31. Rc1 Qe6 32. Qa8 Ra2
33. Qb8 Rc6 34. Qd8 (34. h4 $14 Rxc1 35. Rxc1) 34... Rac2 35. Rxc2 Rxc2 36. Rd1
{Black must now prevent h4.} (36. h4 {is interesting.} Qf6 37. Qd7 Qc6 38. Qc8
Qe8 39. Qb7) 36... Rc6 37. Qg5+ (37. Qh4 {is more complex.} h5 38. h3 Rd6 39.
Rc1 Rc6 40. Rb1) 37... Kf7 38. Qh4 h6 39. h3 Kg8 (39... Qe7 $5 {[%cal Re7h4]}
40. Qf4 Qe6 $11) 40. Qd8+ Kh7 41. Bf4 Qf6 (41... Qe8 $11 {remains equal.}) 42.
Qxf6 ({Of course not} 42. Bxc7 $6 Qxd8 43. Bxd8 Kg6 $11) (42. Qc8 $16) 42...
Rxf6 $11 43. Bxc7 {Weighted Error Value: White=0.32/Black=0.37} 1/2-1/2

[Event "3rd Dvoretsky Memorial 2021"]
[Site "Moscow"]
[Date "2021.02.11"]
[Round "8.3"]
[White "Inarkiev, Ernesto"]
[Black "Savchenko, Boris"]
[Result "1-0"]
[ECO "A48"]
[WhiteElo "2654"]
[BlackElo "2552"]
[Annotator "TA"]
[PlyCount "85"]
[EventDate "2021.02.10"]
[EventType "tourn"]
[EventCountry "RUS"]
[Tiebreak "Koya+Number of wins"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,85,0,24,24,3,0,16,0,25,0,16,8,15,2,6,-3,4,-22,1,0,17,0,0,0,16,3,14,5,
20,11,12,4,47,0,4,0,43,0,0,-27,-17,-13,-6,0,-6,-37,-29,-29,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,-8,-9,-9,0,0,0,0,16,19,297,277,458,420,434,428]} 1. d4 Nf6 2. Nf3 g6
3. Bf4 Bg7 4. e3 c5 5. Be2 Qb6 6. Nc3 {A48: 1 d4 Nf6 2 Nf3 g6: Torre, London
and Colle Systems.} d6 7. O-O O-O 8. a3 {The position is equal.} Bf5 {[#]} 9.
dxc5 $146 ({Predecessor:} 9. Rb1 Na6 10. Re1 Rac8 11. h3 Nc7 12. Bd3 Be6 13.
Bh2 Rfd8 14. Bf1 a6 15. a4 {0-1 (38) Spornberger,A (2355)-Mirzoev,A (2535)
Innsbruck 2017}) 9... Qxc5 10. Nd4 Bd7 11. Nb3 Qc8 12. e4 Bc6 13. Bd3 b6 14.
Qd2 Nbd7 15. Nd4 Bb7 16. Bh6 Bxh6 17. Qxh6 Qc5 18. Nb3 Qc7 19. Rae1 a6 20. f4
Nc5 21. Nxc5 Qxc5+ 22. Kh1 Rac8 23. Qh4 (23. f5 {feels hotter.} Rce8 24. Rf4
Qe5 25. Ref1 Nd7 26. Nd5) 23... Qd4 24. Qf2 (24. e5 {is more complex.} dxe5 25.
Rxe5 Qd6 26. Rd1 Rfd8 27. Bf1) 24... Qxf2 25. Rxf2 b5 26. Kg1 Kg7 27. e5 dxe5
28. fxe5 Ne8 (28... Nd5 $5 {[%cal Rd5c3]} 29. Be4 Nxc3 30. Bxb7 Rc7 $11) 29.
Be4 Bxe4 30. Nxe4 Rc4 31. b3 Rd4 32. Ng5 {Strongly threatening Ref1.} Nc7 33.
Ref1 {[%cal Rf2f7]} f5 34. exf6+ $1 exf6 35. Re2 {[#] Re7+ is the strong
threat.} Rd7 (35... fxg5 $5 36. Re7+ $8 {[%mdl 64] Double Attack} Kg8 37. Rxf8+
Kxf8 38. Rxc7 Rd1+ 39. Kf2 h5 $11) 36. Ne4 (36. Ne6+ {looks sharper.} Nxe6 37.
Rxe6 Rc8 38. Rxa6 Rxc2 39. Raxf6 Ra2 40. a4) 36... Ne6 37. Rfe1 Nd4 38. Rd2
Rfd8 39. Kf2 Rd5 40. Red1 {[#] aiming for g4.} f5 {[%mdl 8192]} (40... Rf5+ $1
$11 41. Ke1 Rfd5) 41. Ng5 Kf6 $2 (41... Rc8 42. Rxd4 Rxc2+ 43. Kf1 Rxd4 44.
Rxd4 h6) 42. Nf3 Rc8 {and the idea ...Nxf3 leaves Black hopeful.} 43. Nxd4 {
Weighted Error Value: White=0.09/Black=0.25} 1-0

[Event "3rd Dvoretsky Memorial 2021"]
[Site "Moscow"]
[Date "2021.02.11"]
[Round "8.4"]
[White "Gunina, Valentina"]
[Black "Kobalia, Mikhail"]
[Result "0-1"]
[ECO "D45"]
[WhiteElo "2427"]
[BlackElo "2587"]
[Annotator "TA"]
[PlyCount "52"]
[EventDate "2021.02.10"]
[EventType "tourn"]
[EventCountry "RUS"]
[Tiebreak "Koya+Number of wins"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,52,29,-18,-27,-17,-27,-46,-33,-122,-123,-133,-135,-125,-10,-43,-36,
-91,-94,-261,-263,-610,-127,-83,0,0,0,-1155,-1138,-1060,-518,-457,-85,-29988,
-29989]} 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Qc2 Bd6 7. b3 O-O
8. Bb2 e5 9. cxd5 cxd5 10. dxe5 Nxe5 11. Be2 Nxf3+ {D45: Semi-Slav: 5 e3.} 12.
Bxf3 d4 $1 {[%cal Rd4c3]} 13. exd4 Re8+ {Black is slightly better.} 14. Ne2 (
14. Be2 $15) 14... Bg4 15. Bxg4 Nxg4 16. h3 {[#]} Bb4+ (16... Rc8 $1 $17 17.
Qf5 (17. Qd2 Qe7) 17... Nf6) 17. Kf1 {[#]} (17. Bc3 $5 {[%cal Rh3g4]} Nxf2 18.
Kxf2 Qf6+ 19. Kg1 Bxc3 {[%mdl 64] Overworked Piece} 20. Nxc3 Qxd4+ 21. Kh2 $11)
17... Rc8 $146 {[%mdl 1024] Black has compensation.} ({Predecessor:} 17... Nf6
18. a3 Rc8 19. Qd3 Ba5 20. Rd1 Nd5 21. b4 Bb6 22. g3 Qf6 23. Kg1 Qe6 {0-1 (43)
Johannesson,I (2269)-Fressinet,L (2625) Reykjavik 2006}) 18. Qf5 (18. Qd3 $15
Ne5 19. Qd1) 18... Nf6 19. Rd1 $2 (19. g3 $17) 19... Ne4 $19 {Hoping for ...
Rc2.} (19... Qe7 20. Qd3 $17) 20. f3 $2 {[#]} (20. Rc1 Nd2+ 21. Kg1) 20... Nd2+
$2 $40 {[%mdl 128] Black wants a kill.} (20... Rc5 $3 $19 {[%mdl 512] and
Black stays clearly on top.} 21. d5 (21. Qf4 g5) 21... Nd2+ 22. Rxd2 Bxd2) 21.
Kf2 $17 {With the idea Qd3.} Qe7 ({Black should try} 21... Rc6 $1 $17 22. Qd3
Nxf3) 22. Qd3 $1 $11 {Bc3 is the strong threat.} Rc2 {[%cal Rc2b2]} 23. Ba1 {
[%mdl 8192]} (23. Qxc2 {leads to mate.} Qe3+ 24. Kg3 Qg5+ 25. Kh2 Nxf3+ $1 {
[%mdl 512]} 26. gxf3 Bd6+ 27. f4 Rxe2+ $1 {[%mdl 576] Remove Defender} 28. Qxe2
Bxf4#) (23. Bc1 $11 Qh4+ 24. g3 Rxe2+ 25. Kxe2 Qxg3 26. Bxd2 Qg2+ 27. Ke3 Rxd2
28. Rxd2 Bxd2+ 29. Qxd2 Qxh1 30. Qb4) 23... Rxa2 $19 24. Rhe1 {[#]} Qh4+ (24...
Nxb3 $142 $1 {[%mdl 512]} 25. Qe4 (25. Qxb3 Bxe1+) 25... Bxe1+ 26. Rxe1 Qd8 27.
Qxb7 Nxa1) 25. g3 Qh5 (25... Qxh3 $19 {[%cal Rh3h2] is more deadly.} 26. Rh1 {
[#]} Rxe2+ $1 {[%mdl 512]} 27. Qxe2 Ne4+ $1 {[%mdl 512]} 28. fxe4 Rxe2+ 29.
Kxe2 Qxg3) 26. Kg2 {[%mdl 8192] [#]} (26. Bc3 $17 Bxc3 27. Qxc3) 26... Nxf3 $1
{[%mdl 576] Discovered Attack.  Weighted Error Value: White=0.74/Black=1.01}
0-1

[Event "3rd Dvoretsky Memorial 2021"]
[Site "Moscow"]
[Date "2021.02.11"]
[Round "8.5"]
[White "Esipenko, Andrey"]
[Black "Murzin, Volodar"]
[Result "1/2-1/2"]
[ECO "A45"]
[WhiteElo "2677"]
[BlackElo "2478"]
[Annotator "TA"]
[PlyCount "98"]
[EventDate "2021.02.10"]
[EventType "tourn"]
[EventCountry "RUS"]
[Tiebreak "Koya+Number of wins"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,98,0,26,17,22,23,16,17,16,27,29,6,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-6,0,
0,0,-18,-36,-20,-14,-29,-30,-50,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,4,3,4,0,0,
-45,-33,-43,-26,-20,-55,-72,-76,-220,-42,-78,-83,-89,-18,-18,-18,-18,-18,-79,
-18,-18,-18,-18,-18,-18,-18,-18,-18,-18,-18]} 1. d4 Nf6 2. Nc3 {[%cal Bb1c3,
Bc3a4,Ba4c5][%mdl 32]} d5 3. Bf4 c5 4. e3 a6 5. dxc5 Nc6 6. Nf3 {D00: 1 d4 d5:
Unusual lines.} e6 7. Na4 Bxc5 {[%mdl 64] [#] Decoy} 8. Nxc5 Qa5+ 9. c3 {
Nb3 is the strong threat.} Qxc5 10. h3 O-O 11. Be2 Re8 12. O-O e5 13. Bh2 Bf5 {
[#]} 14. Rc1 $146 ({Predecessor:} 14. Qb3 Qe7 15. a4 Rad8 16. Rfe1 h6 17. Rad1
Rd7 18. Bf1 Red8 19. g4 Be4 20. Nd2 {1-0 (47) Gabr,M (2287)-Salykin,A (1862)
Pardubice 2018}) 14... Rad8 15. b4 Qe7 16. b5 axb5 17. Bxb5 Be4 18. a4 Nd7 19.
Nd2 Bg6 20. Nb3 Nb6 21. Ra1 Nc4 22. Qe2 Nd6 23. Rfd1 Nxb5 24. axb5 Nb8 25. c4
Qb4 26. Na5 dxc4 {White must now prevent ...Bd3.} 27. Rxd8 Rxd8 28. Qxc4 Qxc4
29. Nxc4 f6 30. f4 Bd3 31. Rd1 e4 32. f5 Nd7 33. Nd6 b6 34. Ra1 Ne5 35. Bxe5 (
35. Nb7 {looks sharper.} Rb8 36. Ra7 Bxb5 37. Nd6 Bd3 38. Nf7) 35... fxe5 $11 {
[%mdl 4096] Endgame KRB-KRN} 36. Nb7 Rd7 37. Ra8+ Kf7 38. Nd8+ Kf6 39. g4 {[#]}
(39. Rb8 $17) 39... Bxb5 $2 (39... Kg5 $1 $19 40. Kf2 Kh4) 40. Rb8 Kg5 41. Rxb6
Rxd8 (41... Bc4 $17 42. Rb4 Bd5 43. Ne6+ Kh4) 42. Rxb5 $17 {KR-KR} Kh4 43. Kf2
Kxh3 44. Rb7 (44. g5 $11 {remains equal.}) 44... Kxg4 ({Black should try} 44...
g5 $17 {Strongly threatening ...Rf8.} 45. fxg6 hxg6) 45. Rxg7+ $11 {The
position is equal.} Kxf5 {aiming for ...h5.} 46. Rxh7 Rd2+ 47. Ke1 Ra2 48. Rf7+
Kg4 49. Rf8 Rb2 {Weighted Error Value: White=0.11/Black=0.15} 1/2-1/2

[Event "3rd Dvoretsky Memorial 2021"]
[Site "Moscow"]
[Date "2021.02.11"]
[Round "9.1"]
[White "Murzin, Volodar"]
[Black "Zvjaginsev, Vadim"]
[Result "1/2-1/2"]
[ECO "C67"]
[WhiteElo "2478"]
[BlackElo "2614"]
[Annotator "TA"]
[PlyCount "46"]
[EventDate "2021.02.10"]
[EventType "tourn"]
[EventCountry "RUS"]
[Tiebreak "Koya+Number of wins"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,46,26,24,27,23,22,22,32,31,31,28,34,33,31,29,37,20,24,27,30,28,29,21,
25,16,17,19,25]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. Re1 Nd6 6. Nxe5
Be7 7. Bf1 Nxe5 8. Rxe5 O-O 9. d4 Bf6 10. Re1 Nf5 11. c3 d5 {C67: Ruy Lopez:
Berlin Defence: 4 0-0 Nxe4.} 12. Nd2 c6 13. Nf3 Nh4 14. Nxh4 Bxh4 15. Bd3 g6
16. Bf4 {[#]} Be6 $146 ({Predecessor:} 16... Bg5 17. Be5 Re8 18. Qc2 Bh6 19.
Bg3 Be6 20. h4 Qd7 21. Be5 Qe7 22. h5 f6 {1-0 (72) Wang,J (2391)-Kung,T (2132)
Irving 2018}) 17. Qd2 Re8 18. Re3 Bd7 19. Rae1 Rxe3 20. Rxe3 Bf6 21. h3 Qf8 22.
Qe1 Re8 23. Rxe8 Qxe8 {Weighted Error Value: White=0.03/Black=0.02} 1/2-1/2

[Event "3rd Dvoretsky Memorial 2021"]
[Site "Moscow"]
[Date "2021.02.11"]
[Round "9.2"]
[White "Kobalia, Mikhail"]
[Black "Esipenko, Andrey"]
[Result "1/2-1/2"]
[ECO "C79"]
[WhiteElo "2587"]
[BlackElo "2677"]
[Annotator "TA"]
[PlyCount "39"]
[EventDate "2021.02.10"]
[EventType "tourn"]
[EventCountry "RUS"]
[Tiebreak "Koya+Number of wins"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,39,28,28,28,25,30,39,42,37,32,44,44,20,17,0,12,15,21,15,24,18,19,24,
20,8]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O d6 6. Re1 Bd7 7. Bxc6
Bxc6 8. d4 Be7 9. Nc3 exd4 {C84: Closed Ruy Lopez: Unusual White 6th moves.}
10. Nxd4 Bd7 11. Qf3 O-O {White is slightly better.} 12. Bf4 Re8 13. h3 b5 {[#]
} 14. e5 $146 ({Predecessor:} 14. a3 c5 15. Nf5 Bxf5 16. exf5 d5 17. Be5 Rc8
18. Bxf6 Bxf6 19. Rxe8+ Qxe8 20. Qxd5 {1/2-1/2 (41) Shetty,R (2348)
-Aleksandrov,A (2635) Dubai 2005}) 14... dxe5 15. Bxe5 c5 16. Nc6 Bxc6 17. Qxc6
Qd7 18. Qf3 Rad8 19. Rad1 Qc8 20. b3 {Weighted Error Value: White=0.03/Black=0.
02} 1/2-1/2

[Event "3rd Dvoretsky Memorial 2021"]
[Site "Moscow"]
[Date "2021.02.11"]
[Round "9.3"]
[White "Savchenko, Boris"]
[Black "Gunina, Valentina"]
[Result "1/2-1/2"]
[ECO "B12"]
[WhiteElo "2552"]
[BlackElo "2427"]
[Annotator "NA"]
[PlyCount "4"]
[EventDate "2021.02.10"]
[EventType "tourn"]
[EventCountry "RUS"]
[Tiebreak "Koya+Number of wins"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "900+10"]

1. e4 {[%emt 0:00:17]} c6 {[%emt 0:00:00]} 2. d4 {[%emt 0:00:07]} d5 {[%emt 0:
00:00]} 1/2-1/2

[Event "3rd Dvoretsky Memorial 2021"]
[Site "Moscow"]
[Date "2021.02.11"]
[Round "9.4"]
[White "Vitiugov, Nikita"]
[Black "Inarkiev, Ernesto"]
[Result "1/2-1/2"]
[ECO "B18"]
[WhiteElo "2715"]
[BlackElo "2654"]
[Annotator "TA"]
[PlyCount "93"]
[EventDate "2021.02.10"]
[EventType "tourn"]
[EventCountry "RUS"]
[Tiebreak "Koya+Number of wins"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,93,22,12,8,4,14,0,10,-14,-10,-32,-20,-17,-24,-24,-31,-31,-21,-27,-22,
-26,-9,-14,-9,-39,-14,-43,-49,-39,-12,-13,-16,-20,0,0,0,0,0,0,0,0,24,22,24,14,
41,43,43,43,40,38,39,24,24,24,24,24,24,24,24,24,25,25,16,0,0,0,43,43,43,24,13,
0,5,0,80,0,0,0,0,0,0,0,0,0]} 1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bf5 5. Ng3
Bg6 6. Nh3 Nf6 {B18: Classical Caro-Kann: 4...Bf5 sidelines.} 7. Bc4 e6 8. O-O
Bd6 9. f4 Qc7 10. Kh1 O-O 11. f5 exf5 12. Nxf5 Nbd7 13. Nxd6 Qxd6 14. Bf4 Qb4
15. Bb3 Rfe8 16. c3 {[#]} Qb5 $146 ({Predecessor:} 16... Qb6 17. Bg5 a5 18. Bf4
a4 19. Bxa4 Qxb2 20. Qb3 Qxb3 21. Bxb3 Be4 22. Kg1 {1/2-1/2 (22) Bokros,A 
(2465)-Lingnau,C (2423) Germany 2018}) 17. a4 Qe2 (17... Qa6 {feels hotter.}
18. Bg3 Nd5 19. Nf4 Nxf4 20. Rxf4 Nf6) 18. Rf2 Qxd1+ 19. Rxd1 Nd5 20. Bd2 N7f6
{And now ...Ne4 would win.} 21. Rff1 Ne3 (21... Ne4 {with more complications.}
22. Bc1 f6 23. Kg1 Bf7 24. Rde1 Nd6) 22. Bxe3 Rxe3 23. Nf4 Rae8 24. Kg1 Be4 25.
a5 a6 26. Rde1 Rxe1 27. Rxe1 g5 28. Nh3 h6 29. Nf2 Bf5 {[%cal Re8e1] [#]} 30.
Rxe8+ Nxe8 $14 {[%mdl 4096] Endgame KBN-KBN} 31. Nd1 Nd6 32. Ne3 Bd3 33. Ng4
Kg7 34. Ne5 Bf5 35. Kf2 Kf8 36. Ke3 Ke7 37. Nd3 (37. Kf3 {seems wilder.} Be4+
38. Kf2 Bd5 39. Bd1 Ne4+ 40. Ke2) 37... Be4 38. g3 Bxd3 39. Kxd3 $11 {KB-KN} f5
40. Bg8 Ne4 41. b4 Nf2+ 42. Ke2 Ng4 {[#]} (42... Ne4 $11) 43. Bh7 (43. d5 $1
$16) 43... Ke6 {The position is equal.} 44. Bg8+ Kd6 45. Bh7 Ke6 46. Bg8+ Kd6
47. Bh7 {Weighted Error Value: White=0.07/Black=0.08} 1/2-1/2

[Event "3rd Dvoretsky Memorial 2021"]
[Site "Moscow"]
[Date "2021.02.11"]
[Round "9.5"]
[White "Makarian, Rudik"]
[Black "Grachev, Boris"]
[Result "1/2-1/2"]
[ECO "D37"]
[WhiteElo "2461"]
[BlackElo "2619"]
[Annotator "TA"]
[PlyCount "61"]
[EventDate "2021.02.10"]
[EventType "tourn"]
[EventCountry "RUS"]
[Tiebreak "Koya+Number of wins"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,61,10,16,13,13,10,9,10,13,4,11,11,12,12,12,12,16,15,21,19,45,27,31,
23,43,27,69,53,70,46,47,48,65,0,22,21,60,37,59,69,66,0,0,0,15,10,15,0,0,0,0,8]
} 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 Nbd7 5. Bf4 dxc4 6. e3 Nb6 {[#]} 7. Bxc4
$1 {[%mdl 64] Decoy. D37: Queen's Gambit Declined: 5 Bf4.} Nxc4 8. Qa4+ {
[%mdl 64] Double Attack} c6 {8...Bd7 is vanishing.} 9. Qxc4 Nd5 10. O-O Nxf4
11. exf4 Be7 12. Rfe1 O-O 13. Rad1 {[#]} Bd7 $146 ({Predecessor:} 13... Qb6 14.
Qe2 Rd8 15. f5 Qc7 16. d5 cxd5 17. Nxd5 exd5 18. Qxe7 Qxe7 19. Rxe7 Bxf5 20.
Rxb7 {1/2-1/2 (59) Petrov,N (2585)-Wagner,D (2587) Bad Ragaz 2019}) 14. g3 Rc8
15. Ne5 Rc7 16. h4 Bc8 17. a3 a6 18. Qe2 Qe8 19. Qf3 Qd8 20. Kh2 Bd6 21. Ne4
Be7 22. Nc3 Bd6 $1 23. b4 {[%cal Bb2b4,Bb4a5][%mdl 32]} h6 24. Re2 a5 25. bxa5
Bxa3 26. d5 (26. Nc4 $14 Bb4 27. Rb2) 26... exd5 $11 {The position is equal.}
27. Nxd5 cxd5 28. Qxa3 Be6 29. Ng6 fxg6 30. Rxe6 {White wants to play Qb3.} g5
$1 31. hxg5 {Weighted Error Value: White=0.16/Black=0.06} 1/2-1/2

