[Event "Opera Euro Rapid KO 2021"]
[Site "Online"]
[Date "2021.02.08"]
[Round "1.2"]
[White "Carlsen, Magnus"]
[Black "Dubov, Daniil"]
[Result "1-0"]
[ECO "C55"]
[WhiteElo "2862"]
[BlackElo "2710"]
[Annotator "TA"]
[PlyCount "55"]
[EventDate "2021.02.09"]
[EventType "k.o."]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,55,23,19,22,25,12,0,-30,-23,-47,-41,-42,-43,-100,-94,-91,-98,-110,
-102,-108,-26,-122,-52,-52,0,0,0,0,137,122,158,163,157,154,1135,1089,1005,801,
29992,29993,29993,29994,29994,965]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 h6 5.
Nc3 Bb4 6. O-O Bxc3 7. bxc3 O-O {The main line 7...0-0 scores better than 7...
d6.} 8. Bb3 $5 {[%mdl 4] An interesting side line. C55: Two Knights: 4 d3, 4
d4 exd4 5 e5 and Max Lange Attack.} d5 9. exd5 Nxd5 {[#]} 10. h3 $146 {The
position is equal.} ({Predecessor:} 10. c4 Nde7 11. h3 Ng6 12. Be3 Be6 13. Re1
Qd7 14. Ba4 f6 15. Nh2 Nge7 16. Rb1 {0-1 (53) Jacimovic,S (2151)-Jovanovic,M 
(2102) Serbia 2016}) 10... Nxc3 11. Qe1 {[#]} Nd4 $1 12. Nxe5 (12. Qxe5 Re8)
12... Nce2+ 13. Kh1 {[#]} (13. Kh2 $1 $15) 13... Bxh3 $1 $17 14. gxh3 {f4 is
the strong threat.} Nxb3 15. Qxe2 Qd5+ 16. Kh2 Nxa1 (16... Nd4 $1 $17 {[%cal
Rd4e2]} 17. Qe4 Qxe5+ $1 {[%mdl 64] Remove Defender, Decoy} 18. Qxe5 Nf3+ 19.
Kg3 Nxe5) 17. Bb2 {[#]} (17. Rg1 $1 $11 Rfe8 18. Bb2 Nxc2 19. Qh5 Rxe5 20. Qxe5
Qxe5+ 21. Bxe5) 17... Rae8 18. Rg1 $15 {[#]} f6 $1 19. Qg4 $11 {[%csl Gg1]
[%cal Rg4g7]} g5 20. Qf5 Re7 {[#]} 21. Ng6 $1 $36 {[%cal Rg6e7][%mdl 2112]
Double Attack, Discovered Attack. Keeping Black busy.} Qd6+ (21... Qxf5 $2 {
too greedy.} 22. Nxe7+ Kf7 23. Nxf5 $18) 22. Rg3 Nxc2 23. Nxf8 Nd4 $2 {Black
cannot hold the game after this.} ({Wrong is} 23... Kxf8 $2 24. Bxf6 Ke8 25.
Qc8+ Kf7 26. Bxe7 $18) (23... Ne3 $16 24. Qc8 (24. fxe3 Rxe3 25. Qg6+ Kxf8 $16)
24... Kg7 25. fxe3 Rxe3 26. Qd7+ Re7 27. Qxd6 cxd6) 24. Bxd4 $18 {[%mdl 64]
Overworked Piece} Qxd4 25. Ne6 {Threatening mate with Qg6+.} Qe5 26. Qg6+ {
[%mdl 64] Double Attack. White mates.} Kh8 27. Qxh6+ Kg8 28. Qf8+ {[%mdl 64]
Double Attack.  Weighted Error Value: White=0.12/Black=0.66} 1-0

[Event "Opera Euro Rapid KO 2021"]
[Site "Online"]
[Date "2021.02.08"]
[Round "1.2"]
[White "Vachier-Lagrave, Maxime"]
[Black "Aronian, Levon"]
[Result "1/2-1/2"]
[ECO "C78"]
[WhiteElo "2784"]
[BlackElo "2781"]
[Annotator "TA"]
[PlyCount "52"]
[EventDate "2021.02.09"]
[EventType "k.o."]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,52,48,55,48,24,27,21,20,33,41,45,60,43,50,0,0,-12,-6,-16,6,0,0,0,0,0,
0,0,0,-5,0,0,13,8,50,0,0,0,50,0,0,0,51]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4
Nf6 5. O-O Bc5 6. c3 b5 7. Bc2 d5 {C78: Ruy Lopez: Archangelsk and Möller
Defences.} 8. d4 {[#] Hoping for exd5.} (8. a4 {is interesting.} dxe4) 8...
dxe4 {[%cal Re5d4]} 9. Nxe5 Nxe5 10. dxc5 Nd3 11. Bxd3 {[#]} exd3 $146 ({
Predecessor:} 11... Qxd3 12. Qxd3 exd3 13. Bg5 Be6 14. Bxf6 gxf6 15. Nd2 O-O-O
16. a4 Kb7 17. b4 c6 {1/2-1/2 (42) Giri,A (2776)-Mamedyarov,S (2772) Bucharest
2019}) 12. Re1+ Be6 13. Re3 Qd5 14. Rxd3 Qxc5 15. Nd2 {[%cal Bb1d2,Bd2f1,Bf1g3]
[%mdl 32]} Qf5 16. Nf1 O-O 17. Ng3 Qg6 18. Bf4 Rac8 19. Qd2 Rfe8 20. b3 Bf5 21.
Rd4 h5 22. h4 Bb1 23. Qd1 Bc2 24. Qd2 Bb1 25. Qd1 Bc2 26. Qd2 (26. Qf3 $11)
26... Bb1 {Weighted Error Value: White=0.09/Black=0.05} 1/2-1/2

[Event "Opera Euro Rapid KO 2021"]
[Site "Online"]
[Date "2021.02.08"]
[Round "1.2"]
[White "Aronian, Levon"]
[Black "Vachier-Lagrave, Maxime"]
[Result "1-0"]
[ECO "B90"]
[WhiteElo "2781"]
[BlackElo "2784"]
[Annotator "TA"]
[PlyCount "73"]
[EventDate "2021.02.09"]
[EventType "k.o."]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,73,15,13,16,30,12,31,36,40,32,45,37,39,34,65,67,64,46,121,93,102,94,
103,101,97,98,114,84,86,81,86,82,99,76,83,95,81,86,82,78,202,210,224,221,253,
248,332,332,327,296,411,416,473,470,492,483,459,439,672,666,666,665,652,652]} 
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f3 e6 7. g4 {B90:
Sicilian Najdorf: Unusual White 6th moves, 6 Be3 Ng4 and 6 Be3 e5.} b5 8. a3
Bb7 9. g5 {White is slightly better.} Nfd7 10. h4 {[#]} Nc6 $146 ({Predecessor:
} 10... Nb6 11. Qe2 N8d7 12. Bd2 Nc4 13. O-O-O Nxd2 14. Qxd2 Qb6 15. f4 Nc5 16.
f5 e5 {0-1 (55) Salgado Lopez,I (2584)-Grandelius,N (2662) chess24.com INT 2020
}) 11. Nxc6 Bxc6 12. Be3 Qb8 13. Qd4 a5 14. h5 Ne5 (14... b4 $14 15. axb4 axb4
16. Rxa8 Bxa8) 15. Be2 b4 16. axb4 axb4 17. Rxa8 Bxa8 18. Na4 Nc6 19. Qb6 (19.
Qd2 {keeps more tension.} Be7 20. h6 g6 21. Nb6 Bb7 22. O-O) 19... Be7 20.
Qxb8+ Nxb8 21. Nb6 Bc6 22. Nc8 Bb7 23. Nxe7 Kxe7 24. h6 $36 {[%mdl 2048] Black
is under strong pressure.} g6 25. e5 Nd7 {This costs Black the game.} (25...
dxe5 $16 26. Bc5+ Kd7) 26. exd6+ $18 Kxd6 27. Rh4 b3 {[#]} 28. Rb4 $1 {[%cal
Rb4b7]} ({Resist} 28. cxb3 $6 Bc6 $16) 28... Bd5 29. c4 ({Not} 29. cxb3 Rf8 $16
) 29... Bc6 30. Rxb3 Ra8 31. Rd3+ Ke7 32. b4 {[%cal Bb2b4,Bb4b5][%mdl 32]
White is clearly winning.} Ne5 33. Rc3 Ra1+ 34. Kf2 Ra2 (34... Ba4 $142 35. f4
Nd7) 35. b5 Bb7 36. Bd4 Nd7 37. c5 {Weighted Error Value: White=0.05/Black=0.32
} 1-0

[Event "Opera Euro Rapid KO 2021"]
[Site "Online"]
[Date "2021.02.08"]
[Round "1.2"]
[White "So, Wesley"]
[Black "Duda, Jan-Krzysztof"]
[Result "1-0"]
[ECO "E94"]
[WhiteElo "2770"]
[BlackElo "2743"]
[Annotator "TA"]
[PlyCount "79"]
[EventDate "2021.02.09"]
[EventType "k.o."]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,79,70,77,104,93,95,100,140,121,130,86,123,60,128,116,133,54,141,42,
89,98,112,45,147,159,149,119,129,124,344,320,326,320,299,108,115,103,106,115,
228,204,448,443,806,797,755,766,-283,760,768,772,1121,1131,1716,1526,29981,
29982,29982,29983,29983,29984]} 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3
O-O 6. Be2 Nbd7 7. O-O e5 8. Be3 c6 9. d5 c5 10. Ne1 Ne8 11. g4 f6 {[#] E94:
King's Indian: Classical: 6 Be2 e5 7 0-0: Various Black 7th moves.} 12. Kh1
$146 ({Predecessor:} 12. Qd2 Rf7 13. Ng2 Nf8 14. f4 exf4 15. Nxf4 Bh6 16. Kh1
Bxf4 17. Bxf4 g5 18. Bg3 Ng6 19. Nd1 {1/2-1/2 (48) Murawski,G (2488)-Kireev,A 
(2375) Wroclaw 2005}) 12... Rf7 13. Rg1 Kh8 {White is better.} 14. a3 Qe7 15.
b4 b6 16. Rb1 (16. Nf3 $16) 16... Nf8 (16... f5 $1 $14) 17. Nf3 $16 Rb8 18. a4
(18. Qc1 $16) 18... Nd7 (18... cxb4 $14 19. Rxb4 Nd7) 19. a5 ({Better is} 19.
b5 $1 $16) 19... Qf8 20. axb6 axb6 21. Qd2 ({White should try} 21. b5 $1 $16)
21... Nc7 {[#]} (21... cxb4 $1 $14 22. Rxb4 Nc5) 22. b5 $1 Ra8 23. Ra1 Rxa1 24.
Rxa1 f5 $2 (24... Nb8 $16 25. Nh4 Ne8) 25. exf5 $18 gxf5 26. Ng5 f4 {White
should prevent ...Re7.} 27. Qc2 $2 Nf6 $16 28. Bd2 ({Much weaker is} 28. Nxf7+
$6 Qxf7 29. Bxc5 dxc5 $11) 28... Re7 29. Rg1 f3 (29... Qd8 $16) 30. Bd1 $18 ({
Less strong is} 30. Nxf3 Nxg4 31. Ne4 Bf5 $16) 30... h6 $2 (30... Bh6) 31. Nxf3
Nxg4 (31... Qf7 $142 32. Nh4 Rd7 33. Bxh6 Nfxd5 34. Bxg7+ Kxg7 35. cxd5 Nxd5
36. Nxd5 Bb7) 32. Nh4 Nxf2+ 33. Kg2 Bh3+ 34. Kg3 Qf7 35. Ng6+ {[%mdl 64]
Double Attack} Kh7 36. Nxe7+ {[%mdl 64] Discovered Attack} e4 37. Nxe4 {
Intending Ng5+! and mate.} Be5+ 38. Kh4 {White mates.} Bf5 39. Nxf5 Qxf5 40.
Nxf2 {Weighted Error Value: White=0.31/Black=0.63} 1-0

[Event "Opera Euro Rapid KO 2021"]
[Site "Online"]
[Date "2021.02.08"]
[Round "1.2"]
[White "Radjabov, Teimour"]
[Black "Giri, Anish"]
[Result "1-0"]
[ECO "A06"]
[WhiteElo "2765"]
[BlackElo "2764"]
[Annotator "TA RC"]
[PlyCount "75"]
[EventDate "2021.02.09"]
[EventType "k.o."]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,75,2,6,-7,-4,-15,-8,-19,-5,-14,-15,-19,16,0,15,25,21,0,8,0,2,-17,0,
-26,-15,-41,-38,-56,-52,-73,-64,-123,-64,-64,-55,-55,-78,-60,-37,-72,-39,-39,
-39,-39,-39,-39,-41,-62,-53,-60,-41,-41,-41,-41,-41,-41,-41,-41,-41,-41,-41,
-41,0,-41,0,-41,0,-41]} 1. Nf3 d5 2. b3 Bf5 3. Bb2 e6 4. e3 Nd7 5. Be2 h6 6. d3
{A06: Réti Opening: 1 Nf3 d5.} Ngf6 7. Nbd2 a5 8. a3 {[#]} Bh7 $146 ({
Predecessor:} 8... Bc5 9. O-O O-O 10. Re1 c6 11. Bf1 Bh7 12. Ne5 Nxe5 13. Bxe5
Nd7 14. Bb2 a4 {0-1 (60) Grabmeier,J (1929)-Meulner,K (2134) Fuerth 2015}) 9.
Rg1 Bd6 10. g4 g5 11. c4 Qe7 12. cxd5 exd5 13. h3 c6 14. Qc2 c5 15. Rc1 b5 {
[%cal Bb7b5,Bb5b4][%mdl 32]} 16. Qd1 d4 17. e4 O-O 18. a4 b4 19. Nc4 Bf4 20.
Kf1 (20. Ra1 $15) 20... Ne8 (20... Bxc1 $17 21. Qxc1 Ne8) 21. Rc2 $15 f6 22.
Bc1 Bxc1 23. Qxc1 Kg7 24. Nfd2 Nc7 25. f4 Ne6 26. f5 {[%cal Rf5e6]} Nf4 27. h4
Bg8 ({Don't play} 27... gxh4 $6 28. Nf3 $16) 28. h5 Rfc8 29. Rh1 Bxc4 30. Nxc4
Ne5 31. Nxe5 Qxe5 32. Rc4 Rc7 33. Qd2 Rac8 34. Bf3 Rc6 35. Kf2 R6c7 36. Kf1 Rc6
37. Kf2 R6c7 38. Kf1 {Weighted Error Value: White=0.09/Black=0.13} 1-0

[Event "Opera Euro Rapid KO 2021"]
[Site "Online"]
[Date "2021.02.08"]
[Round "1.2"]
[White "Giri, Anish"]
[Black "Radjabov, Teimour"]
[Result "1/2-1/2"]
[ECO "C66"]
[WhiteElo "2764"]
[BlackElo "2765"]
[Annotator "TA"]
[PlyCount "76"]
[EventDate "2021.02.09"]
[EventType "k.o."]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,76,27,35,11,23,24,23,23,23,21,36,19,26,23,14,5,13,5,5,0,18,12,19,18,
27,26,27,26,50,35,45,43,40,32,22,26,59,59,64,68,60,60,56,27,37,37,36,19,23,23,
23,23,23,23,23,23,23,23,55,55,55,55,55,55,55,0,0,0,0]} 1. e4 e5 2. Nf3 Nc6 3.
Bb5 Nf6 4. d3 d6 5. O-O Bd7 6. c4 {C66: Ruy Lopez: Steinitz Defence.} Be7 7.
Nc3 O-O 8. h3 {White has an edge.} h6 9. Be3 {[#]} Nh7 $146 ({Predecessor:} 
9... a6 10. Ba4 Re8 11. d4 exd4 12. Nxd4 Nxd4 13. Bxd4 Bxa4 14. Qxa4 Qd7 15.
Qb3 c5 16. Bxf6 Bxf6 {0-1 (44) Firouzja,A (2723)-Fedoseev,V (2677) Moscow 2019}
) 10. Bxc6 bxc6 11. d4 exd4 12. Nxd4 Re8 13. Qd3 c5 14. Nde2 Bf6 15. Rad1 Bc6
16. b3 Ng5 {[%cal Rg5e4]} 17. f3 $1 Ne6 18. Nd5 Bh4 19. Nec3 Bf6 20. Nxf6+ Qxf6
21. f4 Nf8 22. Rde1 Nd7 23. Nd5 Bxd5 24. exd5 Re7 25. Bd2 {[#] aiming for Bc3.}
Rae8 26. Bc3 Qh4 {[%cal Re7e1]} 27. Rxe7 Rxe7 28. Qf5 Nf6 29. Bxf6 Qxf6 30.
Qxf6 gxf6 $11 {[%mdl 4096] Endgame KR-KR} 31. Kf2 f5 32. Re1 Rxe1 33. Kxe1 {
KP-KP} h5 34. Kd2 Kf8 $1 35. Kc3 Ke7 36. b4 {[#] Hoping for bxc5.} Kd7 37. Kb3
({White should try} 37. b5 $1 $14) 37... c6 38. bxc5 dxc5 {Weighted Error
Value: White=0.06/Black=0.06} 1/2-1/2

[Event "Opera Euro Rapid KO 2021"]
[Site "Online"]
[Date "2021.02.08"]
[Round "1.2"]
[White "Duda, Jan-Krzysztof"]
[Black "So, Wesley"]
[Result "0-1"]
[ECO "A22"]
[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 14,70,-7,-34,-34,-34,-27,-32,-34,-35,-2,0,0,-8,0,-46,-54,-72,-52,-59,
-52,-45,-43,-110,-97,-89,-102,-104,-104,-96,-99,-243,-235,-330,-317,-585,-581,
-584,-583,-573,-552,-547,-532,-597,-577,-954,-941,-1080,-1073,-1064,-1050,
-1081,-1068,-1066,-1069,-1053,-845,-844,-844]} 1. c4 Nf6 2. Nc3 e5 3. g3 Bb4 4.
Bg2 O-O 5. Nf3 e4 6. Ng5 Bxc3 7. bxc3 Re8 8. O-O h6 {A22: English Opening: 1...
e5 2 Nc3 Nf6.} 9. Nh3 Nc6 10. Nf4 d6 {Black is slightly better.} 11. Nd5 {[#]}
Be6 $5 $146 {[%mdl 8] New and interesting.} ({Predecessor:} 11... Bf5 12. f3
Nxd5 13. cxd5 exf3 14. Rxf3 Ne7 15. d3 Bd7 16. Rf2 Ng6 17. Rb1 b5 {1/2-1/2 (43)
Aronian,L (2649)-Sokolov,I (2695) Hoogeveen 2003}) 12. Nxf6+ Qxf6 ({Of course
not} 12... gxf6 $6 13. Bxe4 Bh3 14. Bxc6 $16) 13. Bxe4 Bh3 14. Bd5 Bxf1 15.
Qxf1 Na5 16. e3 c6 17. Bg2 a6 18. a4 {[#]} (18. Ba3 $15) 18... Qg6 $1 $17 19.
e4 Nb3 20. Ra3 Nxc1 21. Qxc1 b5 22. e5 {This costs White the game.} (22. cxb5
$17 axb5 23. axb5 cxb5 24. Rb3) 22... bxc4 $19 ({Not} 22... dxe5 23. axb5 axb5
24. Rxa8 $17) 23. Bxc6 {[#]} (23. exd6 {is a better defense.} Qxd6 24. Bf1)
23... Rab8 $1 {[%cal Rb8b1] aiming for ...Rb1.} ({Less strong is} 23... dxe5
24. Bxa8 Rxa8 25. Ra1 $15) 24. Bxe8 $2 (24. Ra1 {was the only chance.} Rxe5 25.
Bg2) 24... Rb1 {Black is clearly winning.} 25. Ra1 Rxc1+ 26. Rxc1 dxe5 {
[%mdl 4096] Endgame KQ-KRB} 27. a5 Qd3 28. Re1 Qxd2 29. Rxe5 Qxc3 30. Re7 Kf8
31. Re4 g6 32. Bc6 Qb3 33. Re8+ Kg7 34. Rc8 c3 35. Be4 Qe6 {Weighted Error
Value: White=0.46/Black=0.01} 0-1

[Event "Opera Euro Rapid KO 2021"]
[Site "Online"]
[Date "2021.02.08"]
[Round "1.2"]
[White "Dubov, Daniil"]
[Black "Carlsen, Magnus"]
[Result "1-0"]
[ECO "E16"]
[WhiteElo "2710"]
[BlackElo "2862"]
[Annotator "TA"]
[PlyCount "49"]
[EventDate "2021.02.09"]
[EventType "k.o."]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,49,14,25,20,18,16,41,50,53,47,83,85,175,100,108,109,112,37,37,37,37,
37,37,32,30,37,125,132,574,570,2137,495,782,487]} 1. d4 Nf6 2. c4 e6 3. Nf3 b6
4. g3 Bb7 5. Bg2 Bb4+ 6. Bd2 c5 7. Bxb4 cxb4 8. O-O O-O 9. Nbd2 a5 10. Re1 {
E16: Queen's Indian: 4 g3 Bb7 5 Bg2 Bb4+.} d6 11. e4 Nfd7 12. Qe2 {White is
slightly better.} e5 13. Rad1 Nc6 14. Nf1 {[#]} Qf6 $146 (14... Qc7 $16 {
was necessary.}) ({Predecessor:} 14... Qc7 15. Ne3 Ne7 16. Nd5 Nxd5 17. cxd5
Ba6 18. Qe3 exd4 19. Nxd4 Nc5 20. e5 dxe5 21. d6 Qd7 22. Bxa8 exd4 23. Qxd4
Rxa8 24. Re7 Qc6 25. d7 Rd8 26. Qd5 {1-0 (26) Karavade,E (2386)-Zherebukh,Y 
(2541) Paris 2009}) 15. Ne3 (15. dxe5 $1 $18 Ndxe5 16. Nh4) 15... Nxd4 16. Nxd4
exd4 {[#]} 17. e5 Qxe5 $14 18. Bxb7 Ra7 {[#]} 19. Qg4 $1 {And now Nf5 would
win.} Nf6 $1 {[%cal Rf6g4]} 20. Qxd4 Rxb7 21. Qxd6 Qxb2 (21... Qxd6 $14 22.
Rxd6 Re8) 22. Rd2 $36 {[%mdl 2048] White is in control.} Qc3 {[%mdl 8192]} (
22... Qa3 $16 23. Ng4 Rbb8 24. Nxf6+ gxf6) 23. Nd1 $18 {White wants to mate
with Qxf8+!White is clearly winning.} Re8 {[#]} 24. Rxe8+ (24. Qd8 $142 $3 {
[%mdl 512]} Rbe7 25. Rxe7) 24... Nxe8 25. Nxc3 {Weighted Error Value: White=0.
50/Black=0.73} ({Not} 25. Qc6 Qe5 $11) 1-0