[Event "Opera Euro Rapid KO 2021"]
[Site "Online"]
[Date "2021.02.08"]
[Round "1.1"]
[White "Carlsen, Magnus"]
[Black "Dubov, Daniil"]
[Result "1-0"]
[ECO "C55"]
[WhiteElo "2862"]
[BlackElo "2710"]
[Annotator "TA"]
[PlyCount "67"]
[EventDate "2021.02.09"]
[EventType "k.o."]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,67,48,19,36,49,44,35,30,37,33,32,27,13,7,12,8,19,26,0,32,20,15,20,43,
34,34,29,68,75,73,32,187,204,195,188,188,188,302,291,286,243,237,243,201,173,
172,166,165,135,117,95,247,250,638,636]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3
Be7 5. O-O d6 6. c3 O-O 7. Re1 h6 8. Nbd2 Be6 {C55: Two Knights: 4 d3, 4 d4
exd4 5 e5 and Max Lange Attack.} 9. Bxe6 $5 {[%mdl 4] A promising side line.}
fxe6 10. Nf1 {[#]} a5 $146 {White is slightly better.} ({Predecessor:} 10...
Nh5 11. d4 exd4 12. cxd4 d5 13. exd5 Qxd5 14. Ne3 Qd7 15. Nc4 Bb4 16. Nce5 Nxe5
17. Rxe5 {1-0 (48) Bernasek,J (2490)-Cvek,R (2517) Czech Republic 2020}) 11.
Ng3 a4 12. Bd2 d5 13. b4 axb3 14. axb3 Rxa1 15. Qxa1 d4 16. Qb1 dxc3 17. Bxc3
Bc5 18. b4 ({But not} 18. Bxe5 $2 Nxe5 19. b4 Bxf2+ $1 {[%mdl 512]} 20. Kxf2
Nxd3+ 21. Kg1 Nxe1 $19) 18... Bb6 19. b5 ({Don't go for} 19. Bxe5 $2 Ng4 $19)
19... Nd4 20. Bxd4 Bxd4 21. Qb3 Qd7 22. Nf5 Ng4 $2 (22... Nh5 $1 $14) 23. N5xd4
$18 exd4 24. e5 {aiming for h3.} h5 25. Qc4 Rxf3 (25... Rd8 {might work better.
} 26. h3 Nh6) 26. gxf3 {[%mdl 4096] Endgame KQR-KQN} Nh6 27. Rc1 Nf5 28. Qxc7
Qd5 29. Qc2 Nh4 {[#]} 30. Qe2 {[%cal Re2e4] Qe4 is the strong threat.} ({Not} 
30. Qc8+ Kh7 $11) 30... Nxf3+ 31. Kh1 Nxe5+ 32. f3 Qxb5 $2 {[#]} (32... Nxf3
$16 33. Qe4 Qxe4 34. dxe4 Ne5) 33. Re1 $1 Nxd3 (33... Ng6 34. Qxe6+ Kh7) 34.
Rd1 {Weighted Error Value: White=0.08/Black=0.37} 1-0

[Event "Opera Euro Rapid KO 2021"]
[Site "Online"]
[Date "2021.02.08"]
[Round "1.1"]
[White "Vachier-Lagrave, Maxime"]
[Black "Aronian, Levon"]
[Result "1/2-1/2"]
[ECO "E39"]
[WhiteElo "2784"]
[BlackElo "2781"]
[Annotator "TA"]
[PlyCount "106"]
[EventDate "2021.02.09"]
[EventType "k.o."]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,106,16,17,10,10,7,21,18,39,35,32,58,63,44,56,50,64,6,35,25,100,114,
115,124,156,166,152,156,160,133,117,128,176,164,169,119,129,57,57,16,23,-8,-10,
-27,-26,-28,-27,-33,-39,-39,-39,-45,-45,-56,0,-47,-47,-47,-16,-34,-16,-48,-9,
-10,-10,-10,-4,-4,0,0,0,-4,-4,-8,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-5,0]} 1. d4
Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dxc5 O-O 6. a3 Bxc5 7. Nf3 Nc6 8. e3 b6 9.
b4 {E39: Nimzo-Indian: Classical: 4...c5 5 dxc5 0-0.} Be7 10. Bb2 Bb7 11. Rd1
Rc8 12. Be2 a5 13. b5 Nb8 {[#]} 14. e4 $146 ({Predecessor:} 14. O-O Qc7 15. Qb1
d6 16. Rc1 Nbd7 17. Rfd1 Qb8 18. Rd4 {0-1 (37) Cherniack,A (2211)-Wemmers,X 
(2380) Caleta 2020}) 14... Qc7 15. e5 $1 {[%cal Re5f6]} Ne8 16. O-O (16. Ne4
$14) 16... Bxf3 17. Bxf3 d6 {[#]} (17... Qxc4 $11 {keeps the balance.} 18. Qb1
Rc7) 18. Na4 $1 $16 {[%cal Bc3a4,Ba4b6,Bb6c4][%mdl 32]} dxe5 19. Rfe1 Qxc4 20.
Qxc4 Rxc4 21. Nxb6 Rc2 22. Re2 Rxe2 23. Bxe2 e4 24. Nc4 a4 25. Nb6 Nf6 26. Nxa4
(26. Kf1 $16) 26... Nbd7 $1 $14 27. b6 {[#] aiming for b7.} Rb8 28. Bb5 Nxb6
29. Be5 Rd8 {[%cal Rd8d1]} 30. Rxd8+ Bxd8 31. Nxb6 Bxb6 32. Bxf6 gxf6 $11 {
[%mdl 4096] Endgame KB-KB} 33. Kf1 f5 34. f3 h5 (34... Bc7 $15) 35. Bc6 exf3
36. gxf3 Kf8 37. a4 Ke7 38. Bb5 e5 39. Bd3 {The position is equal.} Kf6 40. Bc4
e4 41. Bd5 e3 42. f4 Bc7 43. Ke2 Bxf4 44. h3 Ke5 45. Bxf7 h4 46. a5 {Black
must now prevent a6.} Kd4 47. a6 {White wants to mate with a7.} Bb8 48. Be6 Ke4
49. Bc8 Ba7 50. Bb7+ Kf4 51. Bc8 $1 Ke4 52. Bb7+ Kf4 53. Bc8 $1 Ke4 {White
really could win this.  Weighted Error Value: White=0.10/Black=0.11} 1/2-1/2

[Event "Opera Euro Rapid KO 2021"]
[Site "Online"]
[Date "2021.02.08"]
[Round "1.1"]
[White "Aronian, Levon"]
[Black "Vachier-Lagrave, Maxime"]
[Result "1/2-1/2"]
[ECO "D96"]
[WhiteElo "2781"]
[BlackElo "2784"]
[Annotator "TA"]
[PlyCount "128"]
[EventDate "2021.02.09"]
[EventType "k.o."]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,128,22,86,21,22,20,24,6,17,20,23,14,21,9,13,7,8,6,17,4,25,0,0,0,0,0,
0,0,0,0,0,0,0,0,47,9,10,0,35,0,25,27,35,11,29,0,13,0,9,0,0,0,0,0,1,0,0,7,4,0,
22,0,31,30,18,0,0,-68,-68,-68,-68,-68,-68,-68,-68,-68,-68,-67,-60,-52,-17,-17,
-25,-25,-25,-25,-14,-16,-14,-16,-8,-8,-8,-8,-8,-8,0,0,0,0,0,0,0,0,0,0,15,15,15,
15,15,15,15,0,15,0,15,0,15]} 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. Nc3 d5 5. Qb3
dxc4 6. Qxc4 Be6 (6... Nc6 $11) 7. Qa4+ {D96: Grünfeld: Russian System (5 Qb3):
sidelines.} (7. Qb5+ $16 Bd7 8. Qxb7) 7... Bd7 $11 8. Qa3 Bc6 9. e3 {[#] White
has an edge.} Bxf3 $146 ({Predecessor:} 9... Nbd7 10. Be2 O-O 11. O-O Nd5 12.
Rd1 e6 13. Bd2 a6 14. Rac1 f5 15. Nxd5 Bxd5 {1/2-1/2 (53) Abhishek,K (2387)
-Zubov,A (2613) Palic 2016}) 10. gxf3 Nbd7 11. f4 O-O 12. Bg2 c6 13. O-O e6 14.
Rd1 Qb6 15. Bd2 Rfd8 16. Be1 Bf8 17. Qa4 Nd5 (17... Qxb2 18. Rab1 $16) 18. Nxd5
(18. Ne4 {looks sharper.} a5 19. Qc2 N7f6 20. Nd2 Qc7 21. Nf3) 18... exd5 19.
b4 a6 20. Qc2 Nf6 (20... Bxb4 $2 21. Rdb1 $18) 21. a4 Re8 ({Don't go for} 21...
Bxb4 $2 22. a5 $18) 22. Rab1 Rac8 23. Qb3 (23. b5 $5) 23... Qd8 24. Bh3 Ne4 25.
b5 axb5 26. axb5 c5 27. dxc5 Rxc5 28. Bg2 Qd7 29. Qd3 {[#] Bxe4 is the strong
threat.} Qe6 30. b6 Rec8 31. Rb5 Rxb5 32. Qxb5 Nf6 33. Qa5 Rc6 34. Bc3 Rxb6 35.
Bd4 Ra6 36. Qc7 Ne4 ({Much weaker is} 36... Qg4 $6 37. Rb1 $16) 37. Qxb7 Ra2
38. Qb3 Qg4 39. h3 (39. Rf1 $11 Qe2 40. Bxe4 (40. Qxd5 Nxf2 41. Qf3 Qxf3 $11)
40... dxe4 41. h3) 39... Qe2 $15 40. Rf1 {aiming for Bxe4.} Nxf2 41. Qxd5 {[#]}
Nxh3+ $1 42. Kh2 $1 {Black must now prevent Ra1.} Nf2 {Strongly threatening ...
Ne4!} 43. Qf3 Qxf3 44. Bxf3 Ne4+ 45. Kh3 Rf2 46. Rxf2 Nxf2+ $11 {[%mdl 4096]
Endgame KBB-KBN} 47. Kg3 Nd3 48. Be2 Nb4 49. e4 {The position is equal.} Nc6
50. Bb6 Be7 51. Bb5 Nd8 52. f5 gxf5 53. exf5 f6 54. Bc4+ Kg7 55. Bd5 (55. Kh4 {
seems wilder.} Nf7 56. Kh5 Bd6 57. Be3 Ne5 58. Bh6+) 55... Nf7 56. Be3 Bd6+ 57.
Kh4 Be5 58. Kh5 h6 (58... Bc3 {is more complex.} 59. Bc4 Be5 60. Bd5) 59. Bxf7
Kxf7 60. Bxh6 {KB-KB} Bd6 61. Be3 Bf8 62. Bh6 {Threatening mate with Bxf8.} Bd6
63. Be3 Bf8 64. Bh6 {Bxf8 would kill now.} Bd6 {Weighted Error Value: White=0.
09/Black=0.08} 1/2-1/2

[Event "Opera Euro Rapid KO 2021"]
[Site "Online"]
[Date "2021.02.08"]
[Round "1.1"]
[White "So, Wesley"]
[Black "Duda, Jan-Krzysztof"]
[Result "1-0"]
[ECO "A13"]
[WhiteElo "2770"]
[BlackElo "2743"]
[Annotator "TA"]
[PlyCount "205"]
[EventDate "2021.02.09"]
[EventType "k.o."]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,205,0,20,6,30,19,25,24,33,38,36,41,37,41,39,40,41,34,39,34,28,33,37,
31,31,35,35,40,30,24,27,13,25,26,32,17,21,22,25,25,24,26,28,27,39,29,41,19,58,
58,60,60,78,0,0,0,70,75,80,66,98,98,98,98,104,104,105,105,112,91,94,91,91,91,
91,0,91,0,91,91,91,91,91,91,92,0,92,86,87,87,93,23,250,86,86,0,0,0,86,86,86,0,
86,86,86,91,181,91,91,91,91,55,91,91,91,0,62,38,103,0,0,0,91,91,91,45,45,0,91,
91,91,69,57,0,106,0,58,29,148,133,338,324,301,183,175,96,96,96,96,91,481,392,
1316,1184,1204,985,2501,1822,2291,2050,2127,1582,5289,5608,2246,2189,6100,4161,
2321,2256,29962,29956,29950,29956,12793,7760,29971,29972,29975,29976,29976,
29973,29978,29979,29979,29978,29982,29983,29985,29986,29986,29987,29993,29989]
} 1. Nf3 d5 2. e3 Nf6 3. c4 e6 4. b3 Be7 5. Bb2 O-O 6. Nc3 c5 7. cxd5 exd5 {
7...Nxd5 is the fancy move.} 8. d4 {A13: English Opening: 1...e6.} Nc6 9. Be2
Ne4 10. dxc5 {White has an edge.} Qa5 11. Rc1 Bf6 {[%cal Re4c3]} 12. Nd4 $1
Nxc5 13. Nxc6 bxc6 14. O-O Ne4 {[%cal Rf6c3]} 15. Qc2 Nxc3 16. Bxc3 Bxc3 17.
Qxc3 Qxa2 18. Rc2 {[%cal Bc1c2,Bc2d2,Bd2d3][%mdl 32]} Qa3 19. Ra1 Qe7 20. Qxc6
Be6 {[#]} 21. Rd2 $5 $146 {[%mdl 8] New and interesting.} ({Predecessor:} 21.
Qc5 Qxc5 22. Rxc5 Rab8 23. Rb5 Rxb5 24. Bxb5 Rb8 25. Rxa7 g6 26. Ra5 d4 27.
exd4 Bxb3 28. f3 Rd8 29. Ra3 Bd1 30. Kf2 Rxd4 31. Rd3 {1/2-1/2 (31) Duda,J 
(2758)-Predke,A (2676) Moscow 2019}) 21... Qb4 22. Rd3 Rfc8 23. Qa6 h6 24. h3
Rc3 25. Qa3 Qxa3 26. Rxa3 Rxd3 27. Bxd3 $11 {[%mdl 4096] Endgame KRB-KRB} Kf8
28. Kf1 Rb8 29. Ke2 Rb7 30. Kd2 Ke7 31. Kc3 Rc7+ 32. Kd4 Rb7 33. Kc5 (33. Ba6
$16 Rb8 34. Bd3) 33... Rc7+ 34. Kd4 ({White should play} 34. Kb4 $11) 34... Rb7
$1 $14 35. Ba6 Rc7 36. Ra2 Bf5 37. b4 $1 Be6 38. Bd3 Rb7 39. b5 Bd7 40. Ra5 ({
Don't blunder} 40. Kxd5 $2 Be6+ 41. Kd4 Bxa2 $19) 40... Be6 41. f4 f6 42. g4
Rc7 43. Ra6 Bc8 44. Ra5 (44. Ra1 {feels hotter.} Be6 45. Rg1 Kd6 46. Rg2 Bd7
47. Ra2) 44... Be6 $1 45. Ra6 Bc8 $1 {[%cal Rc8a6]} 46. Ra4 Be6 47. Be2 Kd6 48.
Ra6+ Ke7 49. Ra4 Kd6 $1 50. f5 Bf7 51. Ra6+ Ke7 52. Bd1 ({White should try} 52.
Bd3 $16) 52... Rc4+ (52... Be8 $11) 53. Kd3 $16 Rc7 54. Kd4 Rc4+ 55. Kd3 Rc7
56. Be2 Kd7 57. Kd4 Ke7 58. h4 Kd7 59. Bd1 Rc4+ 60. Kd3 Rc7 61. Bb3 Ke7 62. Kd4
Rb7 63. Ra5 Rd7 64. Ra6 Rb7 65. Kc5 Rd7 (65... Rc7+ $14 66. Kd4 Rd7) 66. Ra5 (
66. Bd1 $16) 66... Rc7+ $11 67. Kd4 (67. Kb4 $11) 67... Rd7 $1 $16 68. Ba2 Kd8
69. Kc5 Rc7+ 70. Kd4 Rd7 $1 71. Ra6 Ke7 72. Rc6 Rb7 73. Ra6 Rd7 $1 74. Rc6 Rb7
75. h5 Kd8 (75... Rxb5 $11 {remains equal.} 76. Rc7+ Kf8) 76. Rc5 Ke7 $2 (76...
Be8 $16 {keeps fighting.}) 77. Bxd5 $18 Bxd5 78. Kxd5 {And now Kc6 would win.
KR-KR} Kd7 {[#]} 79. Kc4 (79. Kd4 $1 $18) 79... Rb6 $16 80. Rd5+ Kc7 81. Kc5
Rb8 $2 {[%mdl 8192]} (81... a6 $16 {is more resistant.} 82. Rd7+ {[%mdl 64]
Deflection} Kxd7 83. Kxb6 axb5 84. Kxb5 Kd6) 82. e4 $18 Rb6 $2 (82... Re8 83.
Kd4 Rb8) 83. e5 fxe5 84. Rxe5 Kd7 85. Re6 Rb7 86. Rg6 Rc7+ 87. Kd5 Ke8 88. f6 {
[%mdl 64] Overworked Piece} gxf6 89. Rxh6 {White threatens Rh8+ and mate.} Rg7
90. Rg6 Rb7 91. Rxf6 Rxb5+ 92. Ke4 Ke7 93. Rf5 Rb4+ 94. Kf3 Rb1 95. h6 {
White mates.} Rh1 {[#]} 96. g5 $1 Ke6 97. Ra5 a6 98. Kg4 Kf7 99. Rf5+ Kg8 100.
Rf6 Kh7 101. Rf7+ Kg8 102. Ra7 Rb1 103. Kh5 {Weighted Error Value: White=0.15/
Black=0.11} 1-0

[Event "Opera Euro Rapid KO 2021"]
[Site "Online"]
[Date "2021.02.08"]
[Round "1.1"]
[White "Radjabov, Teimour"]
[Black "Giri, Anish"]
[Result "0-1"]
[ECO "E11"]
[WhiteElo "2765"]
[BlackElo "2764"]
[Annotator "TA"]
[PlyCount "100"]
[EventDate "2021.02.09"]
[EventType "k.o."]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,100,25,21,43,21,27,3,24,-8,6,5,14,0,22,1,6,3,22,24,27,17,30,0,48,18,
25,0,7,0,0,0,-14,-36,-26,-25,-21,-12,-18,-18,-17,-16,-19,-39,-23,-70,-62,-73,
-65,-69,-77,-58,-50,-182,-154,-172,-8,-212,-189,-253,-220,-260,-254,-248,-251,
-253,-232,-345,-276,-313,-223,-223,-223,-357,-356,-385,-431,-395,-397,-566,
-573,-637,-635,-703,-714,-677,-318,-677,-677,-756,-709,-635,-576]} 1. d4 Nf6 2.
c4 e6 3. Nf3 Bb4+ 4. Nbd2 O-O 5. a3 Be7 6. e4 d6 {E11: Bogo-Indian.} 7. Bd3 e5
8. b4 {[#]} a5 $146 {The position is equal.} ({Predecessor:} 8... exd4 9. Nxd4
Nfd7 10. Rb1 a5 11. O-O Bf6 12. Nc2 axb4 13. axb4 Nc6 14. Ne3 Nb6 15. Nd5 Nxd5
16. cxd5 Ne5 17. Be2 c6 18. dxc6 bxc6 19. Nc4 Nxc4 20. Bxc4 Ba6 {1/2-1/2 (20)
Rodshtein,M (2616)-Gharamian,T (2661) Cappelle-la-Grande 2013}) 9. b5 Nbd7 10.
O-O Re8 11. Re1 Bf8 12. Bb2 exd4 13. Bxd4 Ne5 14. Be2 a4 15. Qc2 Nfd7 16. Bb2
Be7 17. Nf1 Bf6 18. Nd4 Ng6 19. Ng3 Nc5 20. Rad1 Be5 21. Nf3 Bxb2 22. Qxb2 Nxe4
23. Nxe4 Rxe4 24. c5 Nf4 25. Bf1 Rxe1 26. Rxe1 Bf5 ({Not} 26... dxc5 $2 27. Qd2
$18) (26... Ne6 {with more complications.} 27. cxd6 Qxd6 28. Ne5 Bd7 29. Nxd7
Qxd7 30. Qb4 b6) 27. Qb4 Ne6 28. cxd6 Qxd6 29. Qxd6 cxd6 30. Rd1 Rc8 31. h3 (
31. Nd4 $1 $15 Nxd4 32. Rxd4) 31... Rc3 $19 32. Rxd6 {[#]} g5 $2 ({Much less
strong is} 32... Rxa3 33. Rd7 $15) (32... Kf8 $1 $19 33. Rd7 Nc7) 33. Ne5 $2 (
33. Rd7 $11) 33... Rxa3 {White must now prevent ...Ra1.} 34. Bc4 (34. Rd7 $142
Ra1 35. Rxb7) 34... Ra1+ 35. Kh2 a3 36. Rd7 a2 37. Bxa2 Rxa2 38. Rxf7 (38. Nxf7
$142 Bg6 39. Nh6+ Kf8 40. Kg1) 38... Be4 39. f3 Bd5 40. Rd7 Nf4 41. Kh1 (41.
Ng4 {only move.} Rxg2+ 42. Kh1 Rxg4 43. hxg4) 41... Re2 42. Ng4 {[#]} Re6 43.
Nf2 Rb6 44. Nd1 (44. h4 {was worth a try.}) 44... Rxb5 {...Rb1 is the strong
threat.} 45. Nc3 Rc5 46. Nxd5 Rxd5 47. Rxb7 Rd1+ 48. Kh2 Rd2 {Black is clearly
winning.} 49. Rb8+ Kg7 50. Rb7+ Kg6 {Weighted Error Value: White=0.40/Black=0.
15} 0-1

[Event "Opera Euro Rapid KO 2021"]
[Site "Online"]
[Date "2021.02.08"]
[Round "1.1"]
[White "Giri, Anish"]
[Black "Radjabov, Teimour"]
[Result "0-1"]
[ECO "B32"]
[WhiteElo "2764"]
[BlackElo "2765"]
[Annotator "TA"]
[PlyCount "110"]
[EventDate "2021.02.09"]
[EventType "k.o."]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,110,32,33,22,16,16,75,75,75,78,75,74,75,67,75,75,79,79,79,79,77,74,
81,77,116,109,144,132,97,0,0,-34,-32,-23,36,37,35,14,27,31,60,27,53,54,43,26,
23,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-12,-12,-12,-12,-96,-96,-29949,
-29949,-29951,-29951,-12763,-5302,-1572,-1299,-29963,-29955,-29967,-29968,
-29966,-29955,-29967,-29970,-29969,-29970,-29967,-29968,-29966,-29961,-12849,
-2560]} 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb5 d6 6. N1c3 a6 7. Na3
b5 8. Nd5 Nf6 9. c4 {B32: Sicilian: Löwenthal and Kalashnikov Variations.} b4 (
9... Nxe4 $6 10. cxb5 Nd4 11. b6 $16) 10. Nc2 a5 $5 {[%mdl 4] Leaves trodden
paths.} (10... Nxe4 $11 11. Qf3 Nc5) 11. Bg5 $16 {White is better.} Be7 12.
Nxe7 Qxe7 13. Ne3 $1 Be6 14. Bxf6 Qxf6 15. Qxd6 Nd4 16. Bd3 {[#]} Rc8 $146 ({
Predecessor:} 16... Rd8 17. Qc5 Rc8 18. Qxa5 Bxc4 19. Bxc4 Rxc4 20. Nxc4 Nc2+
21. Ke2 Nxa1 22. Qa8+ Ke7 23. Qxh8 {1-0 (33) Adamowicz,K (2134)-Dobrzanska,J 
(1574) Hucisko 2016}) 17. O-O Rc6 18. Qb8+ Rc8 19. Qb6 O-O 20. Qxa5 Qf4 21.
Rfe1 Bh3 22. Bf1 ({Of course not} 22. Qxb4 $6 Bxg2 23. Kxg2 Qf3+ 24. Kg1 Qh3
$11) (22. Be2 $16 Rc6 23. Nd5 (23. gxh3 Nxe2+ 24. Rxe2 Qf3 $14) (23. Qxb4 Rf6
$11)) 22... Rc6 $1 $11 {White must now prevent ...Nf3+!} 23. Nf5 (23. Nd5 {
is a self mate.} Nf3+ $1 {[%mdl 512]} 24. gxf3 Rg6+ 25. Bg2 Rxg2+ 26. Kf1 Qd2
27. Ne7+ Kh8 28. Qxe5 Qxf2#) (23. g3 $5 {[%cal Rg3f4]} Nf3+ 24. Kh1 $11) 23...
Bxf5 24. exf5 Nc2 (24... e4 $1 $11 25. h3 Nc2) 25. g3 $14 Qh6 26. Qxe5 Nxa1 27.
Rxa1 Qd6 28. Re1 (28. Qe3 {keeps more tension.} Rc5 29. a4 Rxf5 30. a5 Re5 31.
Qd3) 28... Ra6 29. Qxd6 Rxd6 {[%mdl 4096] Endgame KRR-KRB} 30. Re5 Rd2 31. c5
Rxb2 32. Bc4 Rc2 33. Bb3 Rc3 34. g4 h6 35. Kg2 Kh7 36. Re7 f6 37. Rc7 h5 38. h3
hxg4 39. hxg4 Kh6 40. c6 Rd8 41. Rd7 Rxd7 42. cxd7 $11 {KR-KB} Rd3 43. Be6 (43.
Ba4 $1 $11) 43... Kg5 $17 {[%mdl 1024] Black has strong compensation.} 44. f3 {
[%mdl 8192] This costs White the game.} (44. d8=R $17 Rxd8 45. Kg3) 44... Kf4
45. Kf2 Rd2+ 46. Ke1 Ke3 $1 47. f4 Rd6 48. g5 Kxf4 49. gxf6 gxf6 50. Ke2 Rd4 $1
{[%cal Rd4d6]} 51. Kf2 Rd2+ 52. Ke1 {[#]} Ke3 $1 53. Kf1 {[#]} Kf3 $1 {[%cal
Rd2d1]} 54. Kg1 Rd4 55. Kh2 Rd1 {Weighted Error Value: White=0.44/Black=0.06} (
55... Rd3 $142 56. Kg1 Rd2) 0-1

[Event "Opera Euro Rapid KO 2021"]
[Site "Online"]
[Date "2021.02.08"]
[Round "1.1"]
[White "Duda, Jan-Krzysztof"]
[Black "So, Wesley"]
[Result "0-1"]
[ECO "A13"]
[WhiteElo "2743"]
[BlackElo "2770"]
[Annotator "TA"]
[PlyCount "70"]
[EventDate "2021.02.09"]
[EventType "k.o."]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,70,0,8,0,5,-14,-4,-51,-30,-69,0,0,0,-39,0,0,0,0,0,0,15,0,0,0,0,0,0,
-53,-46,-48,-29,-57,0,-58,-89,-122,-108,-74,-78,-206,-188,-420,-420,-420,-355,
-413,-414,-412,-405,-367,-436,-411,-407,-1238,-1016,-29979,-29980,-5457,-5320]
} 1. Nf3 d5 2. e3 Nf6 3. c4 e6 4. Nc3 Be7 5. b3 O-O 6. Bb2 c5 7. cxd5 Nxd5 {
Nowadays more popular than 7...exd5.} 8. Qc2 {A13: English Opening: 1...e6.}
Nc6 9. h4 f5 $5 {[%mdl 4] [#] Leaves trodden paths.} (9... Nf6 {with more
complications.} 10. a3 Bd7 11. Be2 h6 12. O-O Rc8) 10. g4 $146 {The position
is equal.} ({Predecessor:} 10. a3 b6 11. Nxd5 Qxd5 12. Bc4 Qd6 13. g4 Na5 14.
Ne5 Nxc4 15. bxc4 Bf6 16. f4 {1-0 (51) Krysa,L (2533)-Gorti,A (2255) Barcelona
2018}) 10... Nxc3 11. dxc3 ({Not} 11. Qxc3 $2 Bf6 $19) 11... e5 ({Don't play} 
11... Qd5 12. Bg2 $11) (11... fxg4 $15 12. Ng5 g6) 12. Bc4+ Kh8 13. Ng5 (13.
Rd1 $5 {[%cal Rd1d8]} Qe8 14. Ng5 $11) 13... e4 14. Rd1 Qe8 15. Ne6 Bxe6 16.
Bxe6 Ne5 {...Nd3+ is the strong threat.} 17. gxf5 Nd3+ 18. Rxd3 exd3 19. Qxd3
Rd8 20. Qe4 (20. Qe2 $11) 20... Qh5 $15 {[%csl Gd8][%cal Rh5d1][%mdl 1024]
Black has compensation.} 21. f3 Bf6 22. Ke2 Rd6 ({Black should try} 22... b5
$15) 23. Qg4 (23. Qxb7 $11 Rfd8 24. Bc1) 23... Qe8 $36 {[%mdl 2048] Keeping
White busy.} 24. h5 Qd8 {( -> ...Rd2+)} 25. Bc1 Bxc3 {Threatens to win with ...
Rd2+!} 26. h6 {[#] This move loses the game for White.} (26. f4 $17) 26... g6
$1 $19 {aiming for ...Rd2+!} 27. Qc4 $2 {[#]} (27. f4) 27... Rd2+ $1 {[%mdl
512]} 28. Bxd2 Qxd2+ {[%mdl 64] Double Attack} 29. Kf1 {next Qe2 is good for
White.} Qxe3 30. Qe4 Qc1+ 31. Kg2 {[#]} Qg5+ 32. Qg4 Qd2+ 33. Kh3 (33. Kg3 $142
Be5+ 34. f4 gxf5 35. Bxf5) 33... gxf5 34. Qh5 Be5 35. f4 Qxf4 {[%csl Ge5][%cal
Rf4g3] Weighted Error Value: White=0.69/Black=0.07} 0-1

[Event "Opera Euro Rapid KO 2021"]
[Site "Online"]
[Date "2021.02.08"]
[Round "1.1"]
[White "Dubov, Daniil"]
[Black "Carlsen, Magnus"]
[Result "1/2-1/2"]
[ECO "E16"]
[WhiteElo "2710"]
[BlackElo "2862"]
[Annotator "TA"]
[PlyCount "86"]
[EventDate "2021.02.09"]
[EventType "k.o."]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,86,0,12,-25,0,0,0,0,0,0,0,1,19,14,9,4,26,0,10,0,-17,0,-16,-25,-22,
-31,-29,-42,-35,-33,-32,-30,-18,-72,-84,-90,31,35,36,36,33,33,35,36,35,35,35,
34,35,35,35,35,34,39,50,8,8,8,8,8,11,4,8,8,8,0,4,0,8,0,3]} 1. d4 Nf6 2. c4 e6
3. Nf3 d5 4. g3 Bb4+ 5. Nbd2 O-O 6. Bg2 b6 7. cxd5 exd5 8. O-O Bb7 9. Ne5 Re8
10. Qc2 {[#] E16: Queen's Indian: 4 g3 Bb7 5 Bg2 Bb4+.} c5 $146 ({Predecessor:
} 10... Bf8 11. b3 c5 12. Bb2 Na6 13. Rad1 Rc8 14. Qb1 Nc7 15. Rfe1 cxd4 16.
Nef3 Ne4 17. Nxe4 dxe4 18. Nxd4 {1/2-1/2 (44) Naumkin,I (2478)-Moiseenko,A 
(2710) Moscow 2014}) 11. Ndf3 cxd4 12. Nd3 Nc6 13. Nxb4 Nxb4 14. Qd1 d3 15.
exd3 d4 16. a3 Nc6 17. Bf4 Nd5 18. Bd2 Ne3 19. fxe3 dxe3 20. Re1 exd2 21. Rxe8+
Qxe8 22. Qxd2 Rd8 23. Re1 Qd7 24. Qf4 f6 ({Not} 24... Qxd3 $2 25. Ne5 $18) 25.
h4 (25. Qc4+ $11 Kh8 26. b4) 25... Qxd3 $17 26. h5 Qd6 (26... Qd5 $17 {Hoping
for ...Ne5!} 27. Nh4 Qf7) 27. Qc4+ $14 ({Reject} 27. Re8+ Kf7 $17) 27... Kf8 $1
{[#]} 28. Ng5 $1 {[%cal Rg5h7]} Qd4+ 29. Qxd4 Nxd4 30. Nxh7+ Kg8 {[#]} 31.
Nxf6+ $1 gxf6 32. Bxb7 {[%mdl 4096] Endgame KRB-KRN} Kg7 33. Kf2 Kh6 34. g4 f5
35. gxf5 Kxh5 36. Rd1 Kg5 {The position is equal.} 37. Be4 Kf4 38. Bb1 {
f6 is the strong threat.} Ke5 39. Rd3 Rf8 40. Re3+ Kd6 41. Rd3 Ke5 42. Re3+ Kd6
43. Rd3 Ke5 {Weighted Error Value: White=0.08/Black=0.10} 1/2-1/2

