[Event "FIDE Grand Prix-I Pool-C 2022"]
[Site "Berlin"]
[Date "2022.02.04"]
[Round "1.1"]
[White "Aronian, Levon"]
[Black "Vidit, Santosh Gujrathi"]
[Result "1-0"]
[ECO "E48"]
[WhiteElo "2772"]
[BlackElo "2727"]
[Annotator "TA"]
[PlyCount "127"]
[EventDate "2022.02.04"]
[EventType "tourn"]
[EventCountry "GER"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,127,-5,0,0,0,-6,-4,-11,-6,-18,-27,-31,-12,-19,-5,-14,41,-18,-13,-49,
-50,-44,0,-4,0,-14,0,0,0,0,0,0,0,0,0,0,28,5,33,30,27,27,22,10,26,25,20,22,24,
32,33,13,13,0,48,37,50,50,61,63,170,162,170,170,170,170,170,170,170,170,170,
170,210,185,228,228,268,267,227,205,275,275,275,247,247,247,247,247,186,183,
381,368,1196,1183,1169,1155,1136,1018,921,901,770,770,29976,29977,29975,29977,
29977,29978,29979,29978,29977,29979,29979,29980,29979,29980,29985,29981]} 1. d4
Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. cxd5 exd5 7. a3 {E48:
Nimzo-Indian: Rubinstein: 5 Bd3 d5 including 6 Ne2, but excluding 6 a3.} Bd6 8.
Qc2 $1 {[%mdl 4] now scores much better than the old 8.Nge2.} c6 9. Nge2 {
The position is equal.} Re8 10. Bd2 b6 11. O-O {[#]} Ba6 $146 ({Predecessor:} 
11... c5 12. b3 Bb7 13. Rfd1 Na6 14. Nb5 Bf8 15. Bc3 cxd4 16. Bxd4 Ne4 17. b4
Qg5 {½-½ (98) Aleksandrov,A (2580)-Moskalenko,A (2531) Yerevan 2017}) 12. Kh1
c5 13. Rad1 g6 (13... Bb7 $11) 14. Qb1 ({White should play} 14. Bxa6 $14 Nxa6
15. f3) 14... Bb7 $11 15. Nf4 Nbd7 16. f3 Nf8 ({But not} 16... Bxf4 17. exf4 h6
18. Bxg6 $11) 17. b4 {Hoping for dxc5.} cxd4 18. exd4 Bxf4 19. Bxf4 Nh5 20. Be5
f6 21. Bg3 Nxg3+ 22. hxg3 Qc7 23. Ne2 Re3 24. Qa2 Rae8 25. Qd2 Qd6 26. Rc1 R3e7
27. Bb5 Rc8 28. Rxc8 Bxc8 29. Qf4 Qxf4 (29... Qe6 {looks sharper.} 30. Rc1 Bd7
31. Bd3 g5 32. Qd2 Qe3) 30. Nxf4 Bb7 31. Kg1 Kf7 32. Kf2 Ne6 (32... f5 $11) 33.
Rh1 $36 {[%mdl 2048] White is pushing.} h5 34. Bd3 Nxf4 35. gxf4 {[%cal Bg3f4,
Bf4f5][%mdl 4128] Endgame KRB-KRB} Rc7 {Black is on the road to losing.} (35...
f5 $1 $14) 36. f5 $18 g5 37. Rxh5 Kg7 {Inhibits Rh7+.} 38. Rh1 {Prevents Rc1.}
Rc3 39. Ke2 Bc6 40. Ra1 {[#] Threatens to win with Kd2.} Bd7 41. Kd2 Rc8 42. b5
Rh8 (42... Rc7 $142 43. g4 Be8) 43. g4 Rc8 44. a4 Kf8 45. a5 Ke7 46. axb6 axb6
47. Ra7 {aiming for Rb7.} Rb8 48. Ke3 Kd6 49. f4 Re8+ 50. Kf3 gxf4 $2 (50...
Rb8 {might work better.} 51. fxg5 fxg5) 51. Kxf4 Bxb5 $2 (51... Rb8 52. Ra6 Bc8
) 52. Bxb5 {[%csl Gb5][%cal Ra7d7] [#] KRB-KR} Re4+ 53. Kf3 {[%csl Gb5][%cal
Ra7d7]} Rf4+ 54. Ke3 {[%csl Gb5][%cal Ra7d7]} Re4+ 55. Kf2 {[%csl Gb5][%cal
Ra7d7]} ({Weaker is} 55. Kd3 Rxd4+ 56. Kc3 Rxg4 $18) 55... Rf4+ 56. Ke1 {
[%csl Gb5][%cal Ra7d7]} Rxd4 57. Ra4 {White mates.} Rxa4 58. Bxa4 {KB-K3P} Ke5
59. Kd2 Kf4 60. Bd1 d4 61. Kd3 Ke5 62. Kc4 Ke4 63. Bc2+ Ke3 64. Bb1 {Weighted
Error Value: White=0.07 (flawless) /Black=0.31} 1-0

[Event "FIDE Grand Prix-I Pool-C 2022"]
[Site "Berlin"]
[Date "2022.02.04"]
[Round "1.1"]
[White "Keymer, Vincent"]
[Black "Dubov, Daniil"]
[Result "1/2-1/2"]
[ECO "D12"]
[WhiteElo "2664"]
[BlackElo "2720"]
[Annotator "TA"]
[PlyCount "169"]
[EventDate "2022.02.04"]
[EventType "tourn"]
[EventCountry "GER"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,169,31,29,23,16,11,14,12,30,17,8,0,-18,-11,0,-15,0,0,0,0,8,32,21,23,
72,83,80,77,73,64,95,99,93,-19,26,35,70,63,66,53,61,42,62,38,35,33,42,22,50,24,
47,8,8,8,8,8,11,8,29,8,35,22,22,8,8,8,8,8,8,8,8,8,8,8,8,8,8,7,7,7,8,8,8,8,8,8,
8,8,8,7,8,8,7,7,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
8,8,8,8,8,8,8,8,0,0,0,0,0,0,0,0,0,8,8,8,8,8,8,8,8,8,0,0,0,0,0,0,0]} 1. d4 {
Postny,E} d5 2. c4 c6 3. Nf3 Nf6 4. e3 Bf5 5. Nc3 e6 6. Nh4 Bg6 7. Nxg6 hxg6 8.
Bd2 {D12: Slav Defence: 3 Nf3 Nf6 4 e3 Bf5.} Nbd7 9. Qb3 Qc7 10. cxd5 $1 {
[%mdl 4] now scores much better than the old 10.g3.} exd5 11. O-O-O a5 {
[%cal Oa5a4] [#]} 12. Qc2 $146 ({Predecessor:} 12. f3 a4 13. Qc2 a3 14. b3 Bb4
15. Kb1 Qb6 16. g4 O-O 17. h4 Rfe8 18. Rc1 {1-0 (55) Cheparinov,I (2687)
-Grischuk,A (2728) Sochi 2008 CBM 126 [Postny,E]}) 12... Rxh2 13. Rxh2 Qxh2 14.
a3 Be7 15. Kb1 Nb6 16. f3 Nc4 17. Bc1 b5 18. e4 b4 {[#]} (18... Kf8 $11) 19.
Qa4 $1 $16 Rc8 20. axb4 Bxb4 {[#]} 21. Na2 $1 ({Much worse is} 21. Nxd5 Nxd5
22. Bxc4 Nb6 $11) 21... Be7 22. Bxc4 dxc4 23. d5 (23. Rd2 $16) 23... Kf8 (23...
Qxg2 {is superior.} 24. d6 Bd8) 24. Qxc4 {Threatens to win with Qa6.} (24. dxc6
{seems wilder.} Qxg2 25. Qxc4 Qxf3 26. Nc3 Nxe4 27. Qxe4 Qxe4+ 28. Nxe4 f5 29.
Ng5) 24... Qc7 25. dxc6 Qxc6 26. Qxc6 Rxc6 27. Bd2 Ra6 28. Nc1 Ke8 29. Bc3 a4
30. Ka2 g5 31. Nd3 g4 32. Nb4 (32. Rh1 {looks sharper.} Kd7 33. Rh8 g6 34. Rb8
gxf3 35. gxf3 Kc7 36. Be5+) 32... Bxb4 33. Bxb4 gxf3 34. gxf3 $11 {[%mdl 4096]
Endgame KRB-KRN} Nd7 35. f4 Rc6 36. Bc3 Nc5 37. Rd4 Ne6 {The position is equal.
} 38. Rxa4 Nxf4 39. Bxg7 f6 40. Bh6 Nd3 41. Rd4 Ra6+ 42. Kb1 Nxb2 43. Kxb2 {
And now Bf4 would win. KRB-KR} f5 44. Bd2 fxe4 45. Rxe4+ Kd7 46. Kb3 Ra1 47.
Kc4 Ra6 48. Bb4 Re6 49. Rh4 Kc6 50. Bc5 Rg6 51. Bd4 Re6 52. Rh1 Rg6 53. Ra1 Rg2
54. Ra6+ Kd7 55. Kd5 Rd2 56. Ra7+ Kd8 57. Kc5 Ke8 58. Ra1 Kd7 59. Kd5 Rd3 60.
Rg1 Rd2 61. Rh1 Kc7 62. Rh7+ Kd8 63. Ke5 Kc8 64. Bc5 Rd7 65. Rh8+ Kc7 66. Bd4
Kc6 67. Rh6+ Kb5 68. Ke4 Re7+ 69. Kd3 {Threatening mate with Rb6+.} Rb7 {
Prevents Rb6+.} 70. Re6 Rb8 71. Rd6 Rb7 72. Ke4 Rh7 73. Rb6+ Kc4 74. Rc6+ Kb5
75. Rc5+ Kb4 76. Rc8 Kb5 77. Be5 Rh4+ 78. Kd5 Rh5 79. Rb8+ Ka5 80. Kd4 Ka6 81.
Bc7 Rb5 82. Rg8 Kb7 83. Kc4 Rf5 84. Bg3 Kc6 85. Kd4 {Weighted Error Value:
White=0.08 (flawless) /Black=0.06 (flawless)} 1/2-1/2

[Event "FIDE Grand Prix-I Pool-C 2022"]
[Site "Berlin"]
[Date "2022.02.05"]
[Round "2.5"]
[White "Keymer, Vincent"]
[Black "Vidit, Santosh Gujrathi"]
[Result "1/2-1/2"]
[ECO "D41"]
[WhiteElo "2664"]
[BlackElo "2727"]
[Annotator "TA"]
[PlyCount "76"]
[EventDate "2022.02.04"]
[EventType "tourn"]
[EventCountry "GER"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,76,30,37,30,34,1,29,32,31,38,32,42,33,37,33,20,37,33,35,34,34,29,33,
34,31,32,37,37,35,31,36,45,41,0,0,0,1,6,8,8,62,62,56,56,56,56,56,56,56,56,56,
56,64,56,103,103,103,94,149,149,149,149,149,149,149,149,149]} 1. d4 Nf6 2. c4
e6 3. Nf3 d5 4. Nc3 c5 5. cxd5 cxd4 6. Qxd4 exd5 7. e4 {D41: Queen's Gambit
Declined: Semi-Tarrasch with 5 cxd5.} dxe4 {seems to push 7...Nc6 aside.} 8.
Qxd8+ Kxd8 9. Ng5 {[%csl LRe4,LRf7] White has an edge.} Be6 10. Nxe6+ fxe6 11.
Bg5 Nc6 12. Bc4 Ke7 13. Nxe4 Kf7 14. Bxf6 gxf6 15. O-O-O Rd8 {Inhibits Rd7+.} (
{Don't take} 15... Ne5 16. Bb3 $16) 16. Rxd8 Nxd8 17. Rd1 Be7 18. Rd7 {[#]
Strongly threatening Nd6+.} f5 19. Nd6+ Kf6 20. Nxb7 Nxb7 21. Rxb7 $14 {
[%mdl 4096] Endgame KRB-KRB} Bc5 {[#]} 22. Rc7 $146 ({Predecessor:} 22. f3 Rd8
23. Rxh7 Be3+ 24. Kc2 Rd2+ 25. Kc3 Rxg2 26. Kd3 Bf4 27. Rxa7 Rxb2 28. Ra6 {
1-0 (44) Yermolinsky,A (2478)-Sokolin,L (2497) Saint Louis 2021}) 22... Bxf2
23. Rc6 Re8 24. b4 {[%cal Bb2b4,Bb4b5,Bb5c6][%mdl 32]} Bg1 25. h3 Rb8 (25... f4
$11) 26. Rxe6+ Kg5 27. b5 $1 Rc8 28. Rc6 Rxc6 29. bxc6 {KB-KB} Bb6 30. Kd2 Kf6
31. Bd3 h6 32. Ke2 f4 (32... Bc7 $14) 33. Kf3 $16 Bc7 34. Ke4 a5 ({Better is} 
34... Ke6) 35. Bc4 {White is clearly better.} Bb8 36. Kd5 Bc7 37. Bd3 Bb8 38.
Kc5 {[#] Threatens to win with Kb6.} Bc7 {Weighted Error Value: White=0.02 
(flawless) /Black=0.08 (flawless)} 1/2-1/2

[Event "FIDE Grand Prix-I Pool-C 2022"]
[Site "Berlin"]
[Date "2022.02.05"]
[Round "2.6"]
[White "Dubov, Daniil"]
[Black "Aronian, Levon"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "2720"]
[BlackElo "2772"]
[Annotator "TA"]
[PlyCount "71"]
[EventDate "2022.02.04"]
[EventType "tourn"]
[EventCountry "GER"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,71,11,29,0,8,0,14,14,13,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,7,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2.
Bf4 d5 3. e3 c5 4. Nf3 Nc6 5. Nbd2 Nh5 6. Be5 {D02: 1 d4 d5 2 Nf3 sidelines,
including 2...Nf6 3 g3 and 2...Nf6 3 Bf4.} e6 {The position is equal.} 7. c4
cxd4 8. cxd5 Qxd5 {[#]} 9. Bc4 $1 Qd8 10. Bxd4 Nxd4 11. Nxd4 Nf6 12. O-O Be7
13. Qb3 O-O 14. Rfd1 Bc5 15. Rac1 {[%cal Rd4e6]} Qe7 16. N2f3 {[#]} b6 $146 ({
Predecessor:} 16... a6 17. h3 Bd6 18. Ng5 Kh8 19. Qd3 Bc7 20. Bb3 Bb6 21. Ndf3
h6 22. Ne4 Rd8 {½-½ (43) Nihal,S (2652)-Deac,B (2643) Riga 2021}) 17. Bb5 Bb7
18. Bc6 {[#] Threatens to win with Bxb7.} Rac8 19. Bxb7 Qxb7 20. h3 Bxd4 21.
Nxd4 Rxc1 22. Rxc1 Rc8 23. Rc4 g6 24. Nb5 {Strongly threatening Nd6.} Rxc4 25.
Qxc4 Qd7 26. Nd4 h5 27. Qc6 Qe7 28. Qc4 Qd7 29. Qc6 Qe7 30. Qc8+ Kg7 31. Qc3
Qd6 32. Nf3 Qd1+ 33. Kh2 Qd6+ 34. Kg1 Qd1+ 35. Kh2 Qd6+ 36. Kg1 {An
interesting draw.  Weighted Error Value: White=0.02 (flawless) /Black=0.01 
(flawless)} 1/2-1/2

[Event "FIDE Grand Prix-I Pool-C 2022"]
[Site "Berlin"]
[Date "2022.02.06"]
[Round "3.5"]
[White "Vidit, Santosh Gujrathi"]
[Black "Dubov, Daniil"]
[Result "1-0"]
[ECO "D78"]
[WhiteElo "2727"]
[BlackElo "2720"]
[Annotator "TA"]
[PlyCount "85"]
[EventDate "2022.02.04"]
[EventType "tourn"]
[EventCountry "GER"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,85,-1,12,15,21,17,12,9,18,16,18,15,19,0,0,0,0,0,0,0,0,0,22,18,52,55,
55,21,12,27,28,22,22,0,18,0,12,0,83,83,87,90,83,101,107,78,42,44,72,56,152,156,
183,176,437,433,418,406,554,554,554,554,554,554,509,495,495,452,939,861,12844,
12839,12351,9511]} 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. d4 d5 5. c4 c6 6. O-O O-O
7. Qb3 a5 8. cxd5 {D78: Fianchetto Grünfeld: 6 0-0 c6.} a4 9. Qd1 cxd5 10. Nc3
{The position is equal.} Qa5 11. Bd2 Nc6 12. e3 Qa6 {[#]} 13. b3 $146 ({
Predecessor:} 13. Re1 Bf5 14. Bf1 Qa7 15. h3 h5 16. Nh4 Bd7 17. Nf3 Bf5 18. a3
Rfd8 19. Bg2 {1-0 (40) Nakamura,H (2736)-Svidler,P (2714) Saint Louis 2021})
13... axb3 14. Qxb3 Na5 15. Qb4 Nc6 16. Qb2 Bf5 17. Rfc1 Rfc8 18. Ne5 Qa3 19.
Qxa3 Rxa3 20. g4 Nxg4 21. Nxg4 Bxg4 22. Nxd5 {[%cal Oc1c6] Strongly
threatening Rxc6!} Rca8 23. Nb4 Na5 {[%cal Oa5b3] Hoping for ...Nb3!} 24. Rab1
{Prevents Nb3.} Bf8 25. Rc7 Be6 {[#]} (25... e6 $11) 26. d5 $1 $16 Bg4 27. h3
Bf5 28. e4 $36 {[%mdl 2048] White is in control.} Bxh3 29. Bc1 Bxg2 30. Bxa3
Bxe4 31. Re1 Bf5 (31... f5 $14) 32. Nc2 {White is more active.} Bxc2 33. Rxc2
Nc4 $2 (33... Rd8 {is a better defense.} 34. Rc5 (34. Bxe7 Bxe7 35. Rxe7 Rxd5
$14) 34... b6) 34. Rxc4 $18 ({Weaker is} 34. Bxe7 b5 $16) 34... Rxa3 {[%mdl
4096] Endgame KRR-KRB} 35. d6 e6 36. Rd1 {[#] Black must now prevent Rc8.
White is clearly winning.} Rxa2 37. d7 Be7 38. d8=Q+ Bxd8 39. Rxd8+ Kg7 40. Rd7
Ra5 (40... Ra8 $142 41. Rcc7 Rf8) 41. Rf4 Rf5 42. Rxf5 exf5 43. f4 {Weighted
Error Value: White=0.04 (flawless) /Black=0.34} 1-0

[Event "FIDE Grand Prix-I Pool-C 2022"]
[Site "Berlin"]
[Date "2022.02.06"]
[Round "3.6"]
[White "Aronian, Levon"]
[Black "Keymer, Vincent"]
[Result "1-0"]
[ECO "B13"]
[WhiteElo "2772"]
[BlackElo "2664"]
[Annotator "TA"]
[PlyCount "83"]
[EventDate "2022.02.04"]
[EventType "tourn"]
[EventCountry "GER"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,83,0,10,4,6,-6,39,36,15,26,21,21,35,24,24,17,35,37,33,45,49,40,43,45,
22,29,71,65,65,69,68,64,75,56,83,83,82,79,83,81,81,81,85,78,79,81,85,93,104,89,
133,141,204,206,240,231,319,297,347,337,347,354,362,332,430,405,468,426,600,
586,1272,1325,1217,1216,999,994]} 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nf6 5.
h3 Nc6 6. Nf3 {B13: Caro-Kann: Exchange Variation and Panov-Botvinnik Attack.}
Nb4 7. Nc3 $5 {[%mdl 4] [#] Leaves trodden paths.} g6 $146 (7... e6 $11) ({
Predecessor:} 7... e6 8. Bf4 Nxd3+ 9. cxd3 Bd6 10. Bxd6 Qxd6 11. Rc1 O-O 12.
O-O Bd7 13. Qb3 Rfc8 {0-1 (29) Rodriguez Redondo,A (1314)-Ramos Aguilar,J 
(2176) Tenerife 2012}) 8. Ne5 {White is slightly better.} a6 {To avoid Bb5+} 9.
O-O Bg7 10. Re1 (10. Bg5 {is interesting.} O-O 11. Re1 h6 12. Bf4 Nd7 13. Ng4)
10... O-O 11. Bg5 Nxd3 (11... h6 {is more complex.} 12. Bf4 Nd7 13. Ng4 Kh7 14.
Be2 Nb6) 12. cxd3 Qb6 13. Nf3 e6 14. Na4 Qd6 15. Qd2 a5 16. Rac1 Bd7 17. Nc5 b6
{[#]} (17... Bc6 $11) 18. Bf4 $1 $16 Qe7 19. Nxd7 Nxd7 20. Rc7 Rfc8 21. Rec1 {
[%cal Be1c1,Bc1c7,Bc7b7][%mdl 32]} Qd8 22. Qc2 {[%cal Rc7c8] White is much
more active.} Rxc7 23. Qxc7 Qxc7 24. Rxc7 Rd8 25. Rb7 Kf8 26. Bd6+ Ke8 27. Ne5
Bxe5 28. dxe5 {[%mdl 4096] Endgame KRB-KRN} Rc8 29. d4 Kd8 ({Better is} 29...
f5) 30. Ra7 Rc4 {[#]} (30... a4 $16 31. Kf1 (31. Rxa4 Nb8 $16) 31... Nb8) 31.
b3 $1 $18 Rc1+ 32. Kh2 h6 33. Kg3 Rc3+ 34. f3 {[%cal Bf2f3,Bf3f4,Bf4f5][%mdl
32]} Rc6 35. h4 {[%cal Bh3h4,Bh4h5][%mdl 32]} Rc8 36. h5 Rc6 37. Kh4 Rc8 38. g4
{[%cal Bg2g4,Bg4g5][%mdl 32] White is clearly winning.} Ke8 (38... Rc1 $142 39.
hxg6 fxg6) 39. f4 Kd8 40. hxg6 fxg6 41. g5 h5 42. f5 {Weighted Error Value:
White=0.02 (flawless) /Black=0.24 (precise)} 1-0

[Event "FIDE Grand Prix-I Pool-C 2022"]
[Site "Berlin"]
[Date "2022.02.07"]
[Round "4.5"]
[White "Dubov, Daniil"]
[Black "Keymer, Vincent"]
[Result "1-0"]
[ECO "B12"]
[WhiteElo "2720"]
[BlackElo "2664"]
[Annotator "TA"]
[PlyCount "63"]
[EventDate "2022.02.04"]
[EventType "tourn"]
[EventCountry "GER"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,63,9,10,7,7,8,16,14,10,16,10,0,0,0,0,0,0,0,0,0,0,0,7,0,0,0,0,0,22,0,
44,37,51,18,23,0,219,212,732,731,730,728,707,660,685,668,682,682,661,675,1254,
751]} 1. e4 c6 {[%cal Bc7c6,Bc6c5][%mdl 32]} 2. d4 d5 3. e5 Bf5 4. Nf3 e6 5.
Be2 c5 6. Be3 Qb6 7. Nc3 Nc6 (7... Qxb2 8. Nb5 $16) 8. O-O {Strongly
threatening dxc5. B12: Caro-Kann: Advance Variation.} Qxb2 9. Qe1 cxd4 (9...
Bxc2 10. dxc5 Bg6 11. a3 $16) 10. Bxd4 {The position is equal.} Nxd4 (10...
Qxc2 $2 11. Rc1 Qb2 {[#]} 12. Nxd5 $1 {[%mdl 512]} Qxc1 13. Nc7+ Kd7 14. Qxc1
$18) (10... Bxc2 $2 11. Nb5 Nxd4 12. Nfxd4 $18) 11. Nxd4 {[%cal Bf3d4,Bd4b5,
Bb5d6][%mdl 32]} Bb4 12. Ndb5 Ba5 $1 (12... Bxc2 13. Qd2 Bxc3 14. Nxc3 $16) (
12... Qxc2 13. Rc1 Bxc3 14. Qxc3 Qxc3 15. Rxc3 $14) 13. Rb1 Qxc2 14. Rc1 Qb2
15. Na4 {[%cal Bc3a4,Ba4b2,Bb2c4][%mdl 32]} Bxe1 (15... Qxe5 $2 16. Qxa5 Rd8
17. Rfe1 $18) 16. Nxb2 Ba5 17. Nd6+ Ke7 18. Nxb7 {Pair of Knights!} Bd8 19.
Nxd8 Kxd8 20. Rfd1 {[#]} Rb8 $146 ({Predecessor:} 20... Nh6 21. Nc4 f6 22. f4
Bg4 23. Bxg4 Nxg4 24. h3 Nh6 25. Nd6 Kd7 26. Rc3 fxe5 27. fxe5 {½-½ (44)
Sarana,A (2631)-Rozum,I (2573) Khanty-Mansiysk 2018}) 21. Nc4 {[%mdl 1024]
Black must now prevent Nd6. White has compensation.} g5 (21... Ne7 $11 {
was preferrable.}) 22. Nd6 $36 {[%mdl 2048] White is more active.} Bg6 23. Rd4
Ne7 24. g4 {To avoid Nf5} (24. Ra4 $5 {[%cal Ra4a7]} Nc8 25. Nb5 $14) 24... Rb6
$2 (24... f6 $11 {and Black stays safe.} 25. Ra4 (25. exf6 Kd7 $11) 25... Nc8)
25. Bb5 $18 {And now Ra4 would win.} Rb8 $2 (25... a6 26. Ra4 Rxd6 27. exd6
axb5 28. Ra8+ (28. dxe7+ Kxe7 29. Ra5 Bd3 $11) 28... Kd7 29. Rxh8 Nc6) 26. Ra4
{White is clearly winning.} Nc8 27. Rxc8+ Rxc8 28. Rxa7 {[%csl Gb5][%cal Ra7d7]
} ({Worse is} 28. Nxc8 Kxc8 29. Rxa7 Kb8 $11) 28... Rc7 {Prevents Rd7+.} 29.
Ra8+ {[%mdl 64] [#] Skewer} Ke7 30. Rxh8 {[%csl Gb5,Gd6][%cal Rh8e8]} f6 31.
Rc8 Ra7 32. Rc6 {Weighted Error Value: White=0.04 (flawless) /Black=0.25 
(precise)} 1-0

[Event "FIDE Grand Prix-I Pool-C 2022"]
[Site "Berlin"]
[Date "2022.02.07"]
[Round "4.6"]
[White "Vidit, Santosh Gujrathi"]
[Black "Aronian, Levon"]
[Result "1/2-1/2"]
[ECO "A13"]
[WhiteElo "2727"]
[BlackElo "2772"]
[Annotator "TA"]
[PlyCount "76"]
[EventDate "2022.02.04"]
[EventType "tourn"]
[EventCountry "GER"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,76,22,31,35,0,0,0,0,0,0,0,0,0,8,10,24,24,25,25,26,25,22,30,21,21,21,
21,27,28,21,29,21,27,44,21,14,20,56,52,50,47,54,54,56,54,56,52,59,53,77,80,80,
32,40,21,21,21,21,21,30,0,29,0,45]} 1. c4 Nf6 2. g3 e6 3. Bg2 d5 4. Nf3 dxc4 5.
Qa4+ Nbd7 6. Qxc4 a6 7. Qc2 c5 8. Nc3 $1 {[%mdl 4] is recently more successful
than 8.0-0.} Qc7 {A13: English Opening: 1...e6.} 9. d4 b5 10. Bf4 Qa7 11. d5
Nxd5 12. Nxd5 exd5 {[#]} 13. a4 $146 ({Predecessor:} 13. e4 d4 14. e5 Be7 15.
O-O Bb7 16. Rfe1 Nf8 17. a4 b4 18. Bg5 Bxg5 19. Nxg5 Bxg2 20. Kxg2 {½-½ (35)
Szabo,L-Keres,P Winnipeg 1967}) 13... Be7 14. axb5 Qb6 15. Ne5 Nxe5 16. Bxd5
Bb7 17. Qe4 Bxd5 18. Qxd5 O-O {[#] White must now prevent ...Ng6.} 19. Bxe5 ({
Much weaker is} 19. Qxe5 Bf6 20. Qd5 Rfd8 $17) 19... Qxb5 20. O-O {[%cal Bh1f1,
Bf1d1,Bd1d5][%mdl 32]} Rfe8 21. Bc3 a5 22. e3 a4 23. Rfd1 (23. Rfc1 {keeps
more tension.} Rad8 24. Qe4 Ra8 25. Qf5 Bf8 26. Qf3) 23... Qb3 24. Ra3 Qxd5 25.
Rxd5 c4 26. Ra2 Rec8 27. Kf1 a3 28. bxa3 Rxa3 29. Rxa3 Bxa3 $14 {[%mdl 4096]
Endgame KRB-KRB} 30. Ke2 Be7 31. Rd7 Bf6 32. Bxf6 gxf6 $16 {KR-KR} 33. Kd2 (33.
Rd4 $16) 33... Ra8 $14 34. Kc3 Ra3+ $1 35. Kb2 Rb3+ 36. Kc2 Ra3 $1 37. Kb2 Rb3+
$1 38. Kc2 Ra3 $1 {Weighted Error Value: White=0.06 (flawless) /Black=0.04 
(flawless)} 1/2-1/2

[Event "FIDE Grand Prix-I Pool-C 2022"]
[Site "Berlin"]
[Date "2022.02.09"]
[Round "5.5"]
[White "Keymer, Vincent"]
[Black "Aronian, Levon"]
[Result "0-1"]
[ECO "D38"]
[WhiteElo "2664"]
[BlackElo "2772"]
[Annotator "TA"]
[PlyCount "70"]
[EventDate "2022.02.04"]
[EventType "tourn"]
[EventCountry "GER"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,70,20,19,0,30,13,5,27,35,40,0,34,32,25,25,-20,-15,-21,-27,-47,-24,
-29,0,0,0,0,0,0,-2,-29,-34,-27,0,0,0,0,0,0,67,72,77,0,0,0,0,0,16,-276,-286,
-284,-287,-271,-272,-269,-262,-919,-915,-940,-929,-6343,-2951]} 1. d4 Nf6 2. c4
e6 3. Nf3 d5 4. Nc3 Bb4 5. Qa4+ Nc6 6. e3 O-O 7. Qc2 {D38: Queen's Gambit
Declined: Ragozin Defence (4 Nf3 Bb4).} Qe7 $5 {[%mdl 4] Exploring less
charted territory.} 8. Bd2 dxc4 9. Bxc4 {The position is equal.} e5 10. d5 {[#]
} Qc5 $146 ({Predecessor:} 10... Nb8 11. a3 Bd6 12. e4 a6 13. O-O h6 14. h3 Nh5
15. Bd3 Qf6 16. Qd1 Nd7 {0-1 (33) Gering,S (2012)-Dubiel,J (2410) Germany 2014}
) 11. Ne4 Nxe4 12. Qxe4 Ne7 13. Nxe5 (13. O-O $142) 13... Bf5 $11 14. Qf4 Bxd2+
$1 15. Kxd2 Qb4+ (15... g6 $5 {[%cal Ra8d8]}) 16. Kc1 $1 (16. Ke2 $2 Qxb2+ 17.
Kf3 Ng6 $1 18. Nxg6 fxg6 $19) 16... Qc5 (16... Rad8 $5 {[%cal Rb7b5]} 17. Rd1 (
17. e4 Ng6 $17) 17... Qc5 $11) 17. g4 (17. e4 Ng6 $1 18. Qxf5 Rae8 $17) 17...
g5 18. b4 Qxb4 (18... gxf4 19. bxc5 Be4 20. Rd1 $16) 19. Qd4 {To avoid Qc3+}
Ng6 {Threatens to win with ...Nxe5. Chess con chili.} 20. Bb3 Qa3+ 21. Kd2 c5
22. Qc3 Nxe5 23. gxf5 Rfe8 {[%cal Oc5c4] And now ...c4! would win.} 24. Rhg1 $1
b5 (24... h6 $11 25. h4 c4) 25. Rxg5+ $14 Kh8 {Strongly threatening ...b4.} 26.
Bd1 (26. Rag1 $16 {[%cal Og5g8] White threatens Rg8+! and mate.} f6 27. R5g3)
26... Qa6 $36 {[%mdl 2048] White must now prevent ...b4. Black has good play.}
27. Be2 $1 Rad8 28. e4 {aiming for f4.} ({Of course not} 28. Qxc5 Qa5+ 29. Kd1
Qa4+ 30. Ke1 Qe4 $17) 28... Qa4 29. Rh5 $2 {[%mdl 8192] Now White is beyond
hope.} (29. f3 $11 {and White stays safe.}) 29... Qxe4 $19 30. Rg1 {[%cal
Oh5h7] White wants to mate with Rxh7+!} Rxd5+ 31. Kc1 {[%cal Oh5h7]} Qf4+ $1 (
31... Qxe2 $2 {leads to mate.} 32. Rxh7+ $3 {[%mdl 512]} Kxh7 33. Qh3+) 32. Kb1
Rd4 {[%cal Bd5d4,Bd4b4,Bb4b5][%mdl 32] Hoping for ...Rb4+.} (32... Qxf2 $2 {
[#] gets mated.} 33. Rxh7+ $3 {[%mdl 512]} Kxh7 34. Qh3+) 33. Bxb5 $2 (33. Ka1
Qxf2 34. Qg3 Qxg3 35. hxg3) 33... Rb4+ {Black is clearly winning.} 34. Ka1 Rxb5
35. Re1 f6 {Weighted Error Value: White=0.65/Black=0.09 (flawless)} 0-1

[Event "FIDE Grand Prix-I Pool-C 2022"]
[Site "Berlin"]
[Date "2022.02.09"]
[Round "5.6"]
[White "Dubov, Daniil"]
[Black "Vidit, Santosh Gujrathi"]
[Result "1/2-1/2"]
[ECO "D40"]
[WhiteElo "2720"]
[BlackElo "2727"]
[Annotator "TA"]
[PlyCount "83"]
[EventDate "2022.02.04"]
[EventType "tourn"]
[EventCountry "GER"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,83,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-2,-4,0,0,0,0,0,-19,-13,-10,0,0,0,-15,
13,14,9,0,25,0,0,0,0,0,0,0,0,20,36,33,60,54,55,47,53,52,48,17,16,20,14,8,8,8,
30,30,29,8,19,8,32,-48]} 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 c5 5. e3 Nc6 6. a3
dxc4 7. Bxc4 a6 8. O-O b5 {[%cal Bb7b5,Bb5b4][%mdl 32]} 9. Ba2 Bb7 10. Qe2 cxd4
{D40: Queen's Gambit Declined: Semi-Tarrasch with 5 e3.} 11. Rd1 {[%cal Re3d4]}
b4 12. exd4 {[%cal Od4d5] [#] And now d5! would win.} bxc3 {The position is
equal.} 13. d5 $1 Nxd5 14. Rxd5 Qc7 15. Rd3 {[%cal Bd5d3,Bd3c3,Bc3c5][%mdl 32]}
Be7 16. Rxc3 O-O {[#]} 17. Be3 $146 ({Predecessor:} 17. Ng5 h6 18. Nxf7 Rxf7
19. Qxe6 Raf8 20. Bxh6 Bf6 21. Rc2 Kh7 22. Be3 Qd7 23. Qe4+ {1-0 (61) Bjerre,J
(2586)-Ganguly,S (2627) Wijk aan Zee 2022}) 17... Rac8 18. Rac1 Qb8 19. Bb1 Bf6
20. Rc5 Ne7 21. b4 g6 22. Bd3 Qa8 23. h3 Nd5 24. Bh6 Rxc5 25. Rxc5 Rc8 26. Ne5
(26. Ra5 $5 {[%cal Rd3a6]}) 26... Rxc5 27. bxc5 Qc8 28. c6 Bxc6 {[%cal Oc6b5]}
29. Nxc6 Qxc6 30. Bxa6 g5 31. Bd3 {[%cal Oh3h4] This bishop pair is nice.} Nf4
{[%csl Gf4][%cal Rc6g2] [#]} 32. Qe4 Qxe4 33. Bxe4 $14 {[%mdl 4096] Endgame
KBB-KBN} Bd8 34. Kf1 {[%cal Oh3h4]} f5 35. Bc2 {[%cal Oh3h4] Strongly
threatening h4!} Ng6 36. a4 Kf7 37. g3 Kf6 38. Ke2 e5 39. f3 Ba5 40. g4 Nf4+
41. Kf1 fxg4 (41... Kg6 $5 {[%cal Rg6h6]} 42. Bf8 Kf6 $11) 42. h4 {Weighted
Error Value: White=0.04 (flawless) /Black=0.05 (flawless)} (42. hxg4 $14 Bb4
43. Bxh7) 1/2-1/2

