[Event "?"] [Site "?"] [Date "2021.06.15"] [Round "?"] [White "game1_c4"] [Black "Lederman_Smirin"] [Result "*"] [ECO "B41"] [Annotator "thechesscorner,@gmail.com"] [PlyCount "22"] [SourceVersionDate "2021.06.15"] {[%evp 0,22,17,11,38,51,37,31,34,29,61,38,19,5,8,0,4,4,4,-36,-41,-258,-256, -302,-298]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. c4 Nf6 6. Bd3 Nc6 7. Nxc6 (7. Be3 Ne5) 7... dxc6 8. O-O e5 9. Kh1 Bc5 $1 {[#]} 10. Nc3 $2 (10. Qf3 h5 11. h3 Bg4 12. Qg3 Qd4 13. Nc3 h4 14. Qe3 Qxe3 15. Bxe3 Bxe3 16. fxe3 Rd8 17. Bc2 Be6 18. b3 Ke7) (10. h3 Rg8 $5 11. f4 Ng4 12. f5 (12. Qf3 Qh4 13. Nc3 Nf2+ 14. Kh2 Bg4 15. Qg3 Qxg3+ 16. Kxg3 Nxd3) 12... Nf2+ 13. Rxf2 Bxf2 14. Qe2 Ba7) 10... Ng4 $1 11. f3 (11. Qf3 Nxf2+ 12. Rxf2 Bxf2 13. Qxf2 Qxd3 14. Be3 O-O ) 11... Nxh2 $1 {0-1 (11) Lederman,L (2346)-Smirin,I (2702) Israel 2002} * [Event "?"] [Site "?"] [Date "2021.06.15"] [Round "?"] [White "c4Nc6Nc3Qc7"] [Black "7Bd3"] [Result "*"] [ECO "B42"] [Annotator "thechesscorner,@gmail.com"] [PlyCount "30"] [SourceVersionDate "2021.06.15"] {[%evp 0,30,32,13,52,42,39,42,44,32,47,37,21,30,39,14,18,15,15,13,15,-43,-46, -20,-15,-9,-17,-37,-37,-38,-40,-28,-24]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. c4 (5. Bd3 Qc7 6. O-O Nf6 7. c4 Nc6 8. Nxc6 (8. Nf3 Ng4 $5 9. h3 (9. g3 Bc5) 9... h5 $5) 8... dxc6 9. Nc3 e5 {transposition into main line}) 5... Nf6 6. Nc3 Qc7 7. Bd3 (7. a3 b6 (7... Nxe4 8. Nxe4 Qe5 9. Bd3 Qxd4 10. O-O (10. Qe2 Be7 11. Be3 Qe5 12. O-O O-O 13. f4 Qc7 14. Nc3 Nc6 15. Na4) 10... f5 11. Nc3 Be7 12. Na4 Nc6 13. Be3 Qf6 14. Re1 O-O 15. b4) 8. Be3 Bb7 9. f3 Be7 10. Be2 O-O 11. Rc1 Nc6 12. b4 Ne5 13. O-O Ng6 14. Kh1 Rac8 15. Qd2 d6 16. Rfd1 Qb8 17. Nb3 Nd7 18. Na4 (18. a4 Ba8 19. a5 bxa5 20. b5 axb5 21. cxb5 d5 $1 22. exd5 Ba3 23. dxe6 Bxc1 24. Qxc1 Nde5) 18... Bc6 19. Nc3 Ba8 20. f4 Nf6) (7. f3) (7. Nc2) (7. Be2) 7... Nc6 8. Nxc6 dxc6 9. O-O e5 {[#]} 10. f4 (10. Bg5 Be7) (10. Be3 Ng4 $1 11. Bg5 h6 12. Bh4 g5 13. Bg3 h5 14. Be2 Bc5 15. h4 Qe7 16. hxg5 Qxg5 17. Qc1 Qf6 18. Nd1 h4 19. Ne3 hxg3 {0-1 (19) Schirmer,W (2087)-Meier,G (2648) Dresden 2010}) (10. h3 Bc5 11. Qe2 Be6) 10... Bc5+ (10... Ng4 $5) 11. Kh1 O-O ( 11... Ng4 $5 12. Qf3 (12. Qe1 Qd8) 12... Qd8 $5 13. f5 (13. h3 Nf2+ 14. Kh2 Bg4 15. Qg3 Qxd3) 13... Nf2+ 14. Rxf2 Bxf2 15. Qxf2 Qxd3 16. f6 O-O 17. Bh6 Rd8) ( 11... h6 $5 12. Qe1 Qe7) (11... h5 12. f5 h4) 12. Qf3 b5 13. fxe5 (13. f5 Rd8 14. Bg5 Be7 15. a3 Ne8 16. Bc1) 13... Ng4 14. Bf4 Nxe5 15. Qg3 f6 {0-1 (49) Hansen,E (2606)-Bocharov,D (2533) Chess.com INT 2021} * [Event "?"] [Site "?"] [Date "2021.06.15"] [Round "?"] [White "9f4 Seeman"] [Black "Vitiugov line"] [Result "*"] [ECO "B43"] [Annotator "thechesscorner,@gmail.com"] [PlyCount "44"] [SourceVersionDate "2021.06.15"] {[%evp 0,34,22,15,44,38,38,38,38,26,50,50,45,52,71,41,52,31,25,23,23,23,25,-12, -8,-118,-118,-130,-142,-298,-298,-304,-192,-201,-194,-405,-401]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 b5 6. Bd3 Qb6 7. Nb3 Qc7 8. O-O Bb7 9. f4 b4 10. Ne2 Nf6 11. Ng3 h5 {[#]} 12. e5 Qb6+ $1 (12... h4 13. Nh1 h3 14. Ng3 hxg2 15. Rf2 Nd5 16. f5 Nc6 17. fxe6 dxe6 18. Bg5 Nxe5 19. Be4 Bd6 20. Bxg2 f6 21. Bd2 O-O-O {0-1 (27) Leve,N (2128)-Vitiugov,N (2722) Chess.com INT 2020}) 13. Kh1 h4 14. Rf3 (14. Nf5 h3 15. Ne3 Nd5 16. Rf3 (16. Qe2 Nxe3 17. Bxe3 hxg2+ ) 16... hxg2+ 17. Kg1 g5 $1 18. fxg5 Nc6 19. g6 O-O-O 20. Be4 Nxe5 21. Rg3 Rh4 22. Bxd5 Bxd5) 14... hxg3 15. Be3 Rxh2+ 16. Kg1 Rxg2+ 17. Kxg2 Qxe3 {0-1 (17) Koskela,N (2237)-Seeman,T (2403) Myyrmanni 1999} 18. Kxg3 Nh5+ 19. Kg4 f5+ 20. exf6 Nxf6+ 21. Kg3 Qb6 22. Rf2 Nc6 * [Event "?"] [Site "?"] [Date "2021.06.15"] [Round "?"] [White "10Nb1"] [Black "in 9f4 line Seeman"] [Result "0-1"] [ECO "B43"] [Annotator "thechesscorner,@gmail.com"] [PlyCount "56"] [SourceVersionDate "2021.06.15"] {[%evp 0,56,20,25,39,33,58,43,27,41,48,58,72,46,71,46,48,34,39,34,22,23,25,20, 34,-26,-31,-31,-67,-31,-70,-139,-139,-128,-146,-130,-141,-147,-128,-158,-115, -151,-151,-265,-289,-304,-323,-323,-330,-315,-299,-323,-342,-557,-585,-665, -662,-647,-648]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 b5 6. Bd3 Qb6 7. Nb3 Qc7 8. O-O Bb7 9. f4 b4 10. Nb1 Nf6 11. Qe2 Nc6 {[#]} (11... d6 12. N1d2 Nc6 13. Nc4 Be7 14. e5 dxe5 15. fxe5 Nd5 16. Qg4 g6 17. Bh6 Nxe5 18. Qd4 f6 { 0-1 (38) Nataf,I (2485)-Kasparov,G (2825) ICC INT 1998}) 12. c4 (12. c3 a5 $1 13. Be3 a4 14. N3d2 a3 15. bxa3 bxa3 16. Nc4 Na5) 12... h5 $5 13. N1d2 a5 $1 { a key move in this variation} 14. e5 Ng4 15. Ne4 (15. h3 a4 16. hxg4 hxg4 17. Qxg4 axb3 18. Nxb3 Qb6+ 19. Rf2 Na5) 15... a4 16. Nbd2 Nd4 $17 17. Qe1 f5 18. exf6 gxf6 19. Nf3 Nxf3+ 20. gxf3 f5 21. fxg4 fxe4 22. Bxe4 Bc5+ 23. Kg2 hxg4 24. a3 b3 25. Bd2 Rh3 26. Qe2 O-O-O 27. Rae1 Rdh8 28. Rh1 Be3 {0-1 (28) Ye,J (2676)-Polgar,J (2677) Prague 2002} 0-1 [Event "?"] [Site "?"] [Date "2021.06.15"] [Round "?"] [White "7Be3 Bc5"] [Black "?"] [Result "*"] [ECO "B43"] [Annotator "thechesscorner,@gmail.com"] [PlyCount "64"] [SourceVersionDate "2021.06.15"] {[%evp 0,19,23,11,46,46,50,36,41,46,48,60,53,48,64,25,41,21,65,42,48,20]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 b5 6. Bd3 Qb6 7. Be3 Bc5 8. Be2 Nc6 9. Nxc6 Qxc6 {[#]} 10. e5 (10. Qd2 Ne7 11. a3 Bb7 12. O-O-O Rd8 13. f4 O-O 14. Bf3 d6) 10... Bxe3 11. fxe3 (11. Bf3 Bxf2+ 12. Kf1 Qc4+) 11... Qc7 12. Qd4 (12. Qd6 Qxd6 13. exd6 f5 14. b4 Rb8 15. a4 bxa4 16. Rxa4 Nh6 (16... Nf6 $5 17. Bxa6 Bxa6 18. Rxa6 Kf7 19. b5 Rhc8) 17. Bxa6 O-O {0-1 (36) Horvath,T (2424)-Epishin, V (2628) Geneve 2003}) 12... Ne7 (12... f5 $5 13. exf6 (13. a4 b4 14. Qxb4 (14. Na2 a5 15. c3 Ne7 16. cxb4 Nc6 17. Qd2 axb4 18. Nxb4 Nxb4 19. Qxb4 Qxe5) 14... Qxe5 15. Qd4 Qxd4 16. exd4 Nf6 17. a5 Bb7 18. O-O Ke7 19. Ra4 Rhb8 20. Rb4 Bc8 {0-1 (47) Shytaj,L (2336)-Epishin,V (2642) Bratto 2003}) 13... Nxf6 14. O-O O-O 15. Ne4 Qa7 16. Nxf6+ Rxf6 17. Rxf6 Qxd4 18. exd4 gxf6 19. a4 bxa4 20. Rxa4 Rb8 {1/2-1/2 (37) Mortensen,E (2450)-Epishin,V (2643) Copenhagen 2002}) 13. Ne4 Nf5 14. Nd6+ Qxd6 15. Qxd6 (15. exd6 Nxd4 16. exd4 Rb8 17. a4 bxa4 18. Kd2 Rb6 19. Rxa4 Rxd6 20. Rha1 Ke7 21. c3 Bb7 22. g3 e5 23. Rb4 Bc6 24. Rxa6 exd4 25. Rxd4 Rxd4+ 26. cxd4 Rb8 $11) 15... Nxd6 16. exd6 Bb7 17. Kf2 Bc6 18. b4 (18. Rhc1 f5 ) 18... f5 19. Rhc1 Kf7 20. c4 bxc4 21. Rxc4 Rhb8 22. Bf3 Bxf3 23. Kxf3 a5 24. bxa5 Rxa5 25. a4 e5 26. Rd1 Rba8 27. Rb1 Rxa4 28. Rc5 Ke6 29. Rb6 g5 30. h3 h5 31. Rc7 h4 32. Rbb7 Ra2 {0-1 (32) Martinez Romero,M (2368)-Flores,D (2598) Mar del Plata 2012} * [Event "?"] [Site "?"] [Date "2021.06.15"] [Round "?"] [White "9a3 line vitiugov sideline"] [Black "?"] [Result "*"] [ECO "B43"] [Annotator "thechesscorner,@gmail.com"] [PlyCount "40"] [SourceVersionDate "2021.06.15"] {[%evp 0,40,22,15,38,44,48,33,33,35,50,51,46,49,63,44,35,40,40,21,26,26,18,13, 0,-9,5,-30,-40,-23,-5,-15,-7,-45,-35,-54,-34,-45,-44,-41,-21,-35,-45]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 b5 6. Bd3 Qb6 7. Nb3 Qc7 8. O-O Bb7 9. a3 Nf6 10. f4 (10. Qe2 {an important variation} d6 11. f4 Nbd7 12. Bd2 Be7 13. Rae1 e5 $1 {[#] e6-e5 first} 14. Kh1 (14. g4) 14... O-O 15. f5 (15. fxe5 dxe5 16. Rf3 Rfe8 17. Ref1 Nf8) 15... Rfe8 $1 16. Qf3 Rac8 $1 17. Qh3 Nb6 18. Bc1 d5 $1 {d6-d5 next after preparation} 19. Nd2 Rcd8 20. Re2 b4 21. axb4 Bxb4 22. Nxd5 Nbxd5 23. exd5 Bxd5 24. Bxa6 Qc6 25. Bd3 e4 $19 {0-1 (25) Todorov,O (2345) -Velikov,P (2500) Besancon 1998}) 10... d6 11. Kh1 (11. Qf3 Nbd7 12. Be3 Be7 13. Rae1 Nc5 14. Nd4 O-O 15. Qh3 Rac8 16. Bf2 Rfd8 17. Bg3 Qb6 18. Bf2 Qc7 19. Bg3 Qd7 20. Nf3 Nxd3 21. cxd3 a5 22. e5 Ne8 23. exd6 Nxd6 24. Ne5 Qe8 25. Rc1 Nf5 26. Bf2 f6 27. Ng4 b4 28. axb4 axb4 29. Ne4 Rxc1 30. Rxc1 h5 31. Ne3 Rxd3 32. Nc5 Bxc5 33. Rxc5 Qg6 34. Rc7 Nxe3 35. Qxe6+ Kh7 {0-1 (35) Nyudleev,D (2412)-Andreikin,D (2635) Moscow 2010}) 11... Nbd7 12. Qe2 Be7 13. Nd4 (13. Bd2 h5 14. Rae1 h4 $5) 13... O-O (13... h5 $5 14. Nf3 h4 15. e5 dxe5 16. fxe5 Nh5 $17) 14. Bd2 Nc5 {[#] white does not threaten e4-e5 so Black did not push e6-e5 } (14... g6 15. Rae1 e5) (14... Rfe8) 15. Rae1 (15. b4 Nxd3 16. cxd3 Rac8 17. a4 bxa4 18. Nxa4 Nd7 19. Rfc1 Qd8) (15. e5 Nfd7 16. Nf3 Rac8 17. Rae1 dxe5 18. fxe5 h6 19. h3 Rfd8 20. Qf2 Nxd3 21. cxd3 Nc5 22. Qg3 Kh7 23. d4 f5 24. dxc5 Bxf3 25. Rxf3 Rxd2) 15... Nfd7 16. Be3 Bf6 {controls e5} 17. Bg1 Rfe8 18. Qf3 g6 19. Qh3 Bg7 (19... e5 $5 20. fxe5 Rxe5 21. Nd5 Bxd5 22. exd5 Nxd3 23. cxd3 Rxe1 24. Rxe1 Ne5 $15 {[%csl Rd5]}) 20. Nf3 f5 $1 {[#] Black attaks the center with f7-f5!- Barua Kasparov 2000} * [Event "?"] [Site "?"] [Date "2021.06.15"] [Round "?"] [White "9Qe2!?"] [Black "?"] [Result "*"] [ECO "B43"] [Annotator "thechesscorner,@gmail.com"] [PlyCount "24"] [SourceVersionDate "2021.06.15"] {[%evp 0,24,22,15,43,44,37,35,35,35,59,52,61,48,62,65,39,40,29,31,47,39,34,20, 26,35,30]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 b5 6. Bd3 Qb6 7. Nb3 Qc7 8. O-O Bb7 9. Qe2 $5 b4 $5 (9... Nc6 10. f4) (9... Nf6 10. e5 $1 Nd5 11. Nxd5 Bxd5 12. a4 $1 b4 13. Re1 Be7 14. Bf4 O-O 15. Rad1 {[%csl Ga6][%CAl Ge2g4, Gg4h5]} g6 16. Qg4 Nc6 17. Qg3) (9... d6 $6 10. a4 $1 b4 11. Na2 Nf6 12. Nxb4 $1 d5 13. Nxd5 $1 exd5 14. exd5+) 10. Nd1 (10. Nd5 $2 exd5 11. exd5+ Be7 12. Re1 Bxd5 13. Nd4 Kf8 14. Nf5 Be6 15. Qf3 Nc6 16. Bf4 Qb6 17. Qg3 Bxf5 18. Bxf5 Nf6) (10. Nb1 Nc6) 10... Nc6 {[#]} 11. f4 Be7 12. c3 a5 $5 * [Event "?"] [Site "?"] [Date "2021.06.15"] [Round "?"] [White "9Be3"] [Black "?"] [Result "*"] [ECO "B43"] [Annotator "thechesscorner,@gmail.com"] [PlyCount "50"] [SourceVersionDate "2021.06.15"] {[%evp 0,31,17,19,43,41,36,30,26,26,57,48,42,29,62,40,34,34,38,28,23,16,12,-6, -32,-35,16,5,5,27,0,0,178,179]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 b5 6. Bd3 Qb6 7. Nb3 Qc7 8. O-O Bb7 9. Be3 Nf6 10. f4 {[#]} (10. a3 $6 Be7 11. Kh1 d6 12. f4 Nbd7 {[#] hedgehog} 13. Bg1 (13. Qe2 O-O (13... h5 14. Rf3 h4) 14. Rad1 Rac8 (14... Rfe8)) 13... h5 $1 {launching the attack, not castling} 14. Nd4 (14. h3 h4 $1 {[%CAl Gf6h5,Gh5g3]}) 14... Rc8 15. f5 e5 16. Nf3 Qb8 17. Qe2 h4 18. Rad1 h3 19. g3 Qa8 20. Nd2 Rxc3 21. bxc3 d5 22. Be3 dxe4 23. Bxb5 axb5 24. Qxb5 Bc6 25. Qc4 Ng4 {0-1 (25) Lumiste,R (2055)-Andreikin,D (2737) Tallinn 2016}) 10... d6 (10... Be7 11. e5 Nd5) 11. e5 $5 (11. a3 Nbd7) (11. a4 b4 12. Na2 Nbd7) 11... dxe5 12. fxe5 Nd5 13. Nxd5 Bxd5 14. a4 $5 {[#]} (14. Rc1 ) 14... b4 15. Qe2 Qxe5 $5 (15... Be7 $2 16. Rxf7 $1 Kxf7 17. Qh5+ Kg8 18. Rf1) (15... Nd7 16. Bxa6 Qxe5 17. Bf4 Qxe2 18. Bxe2 Be7 19. Bb5 Ra7 20. a5 O-O 21. a6) 16. Qf2 f6 17. Rae1 Nd7 18. Bf4 (18. Qh4 Kf7 $5) 18... Qxb2 19. Qe2 (19. Be4 Bxe4 20. Rxe4 e5 21. Bxe5 Nxe5 22. Rxe5+ Qxe5 23. Re1 Bd6 24. Rxe5+ Bxe5 25. Qc5 Kf7 26. Qc4+ Kg6 27. Qd3+ $11) 19... Bxb3 20. Qf3 Bc5+ 21. Kh1 O-O 22. cxb3 Ne5 23. Bxe5 fxe5 24. Qh3 g6 25. Qxe6+ Kg7 $11 * [Event "?"] [Site "?"] [Date "2021.06.15"] [Round "?"] [White "9a4,9Re1"] [Black "?"] [Result "*"] [ECO "B43"] [Annotator "thechesscorner,@gmail.com"] [PlyCount "60"] [SourceVersionDate "2021.06.15"] {[%evp 0,60,17,19,43,37,30,26,26,26,57,48,55,31,59,60,38,34,25,15,15,-1,4,-5, -11,-6,16,-7,-10,-17,0,-10,-2,-34,-41,-41,-19,-122,-90,-81,-82,-125,-125,-119, -158,-278,-138,-255,-255,-250,-250,-237,-197,-229,-227,-288,-304,-611,-640, -677,-687,-29985,-2326]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 b5 6. Bd3 Qb6 7. Nb3 Qc7 8. O-O Bb7 9. a4 (9. Re1 Bd6 $5 {[#]} 10. h3 Ne7 11. Qh5 Nbc6 12. Bd2 Ng6 $15 13. a4 b4 14. Ne2 O-O 15. Rac1 Nce5 16. Ned4 Nc4 (16... Rac8 $5) 17. Bxc4 Qxc4 18. c3 $1 bxc3 19. Rxc3 Qxa4 20. Ra1 Qb4 21. Rc6 Qxb3 22. Nxb3 Bxc6 23. Qe2 Be5 {1/2-1/2 (23) Baklan,V (2618)-Flores,D (2543) Lorca 2007}) 9... b4 10. Ne2 (10. Na2 Nf6 11. Qe2 Nc6 12. f4 d6 (12... Be7 $5) 13. c3 bxc3 14. bxc3 Be7 15. Nb4 O-O 16. Nxc6 (16. Kh1 Na5) 16... Qxc6 17. Nd4 Qxc3 18. Bb2 Qc7 {0-1 (48) Filipek,J (2383)-Chuchelov,V (2600) Belgium 2002}) 10... Nf6 {[#]} 11. Bf4 (11. Ng3 h5) 11... e5 $1 12. Be3 d5 $1 13. f3 Nbd7 14. Ng3 g6 15. Qe1 h5 $5 16. exd5 (16. Bd2 h4 17. Nh1 h3 18. g3 a5 19. Nf2 Be7) 16... Nxd5 17. Bg5 Bg7 (17... h4) 18. f4 h4 19. Ne4 f5 $1 20. fxe5 Bxe5 21. Ned2 h3 $1 $19 22. Nf3 O-O (22... hxg2 23. Rf2 Kf8 $5) 23. Nxe5 (23. Qh4 hxg2 24. Rf2 Bxb2) 23... Nxe5 24. Qg3 hxg2 25. Rf2 Nxd3 (25... Rae8) 26. Qxd3 Rae8 27. Rxg2 Nf6 28. Bh6 Bxg2 29. Bxf8 Ba8 30. Bc5 Qc6 {0-1 (30) Leiber,B (2215)-Kengis,E (2585) Bad Zwesten 1997} * [Event "?"] [Site "?"] [Date "2021.06.15"] [Round "?"] [White "Be3,Qd2 with Qc7"] [Black "english_Attack_B43"] [Result "*"] [ECO "B43"] [Annotator "thechesscorner,@gmail.com"] [PlyCount "32"] [SourceVersionDate "2021.06.15"] {[%evp 0,32,16,30,39,31,42,36,29,37,61,46,38,36,50,26,32,14,33,4,7,12,-8,-59, -59,-48,-37,-32,-40,-106,-82,-201,-206,-310,-331]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 b5 6. Be3 Bb7 7. f3 Nf6 8. Qd2 Qc7 9. g4 (9. O-O-O Nc6 10. g4 b4 11. Na4 d5 $1 12. g5 (12. Nxc6 Bxc6 13. Nb6 Rd8) 12... Nd7 13. b3 dxe4 14. fxe4 Nce5 15. Bd3 Nc5 16. Nxc5 Bxc5 17. Kb1 Rd8 {0-1 (28) Carvalho,F (2141)-Flores,D (2579) Sao Paulo 2009}) (9. a3 d5 10. exd5 (10. O-O-O b4 11. axb4 Bxb4 12. e5 Nfd7 13. f4 Nc6 14. Bd3 (14. f5 Nc5 15. fxe6 fxe6) 14... Nc5 15. f5 (15. Nxc6 Bxc6 16. Bd4 Bb5 $1) 15... Nxd3+ 16. cxd3 Qxe5) 10... Bxd5 11. Bf4 Qb6 (11... e5 $2 12. Ndxb5 axb5 13. Nxd5 Nxd5 14. Bxb5+ Nd7 15. Qxd5)) 9... h6 {[#]} 10. O-O-O (10. h4 Bb4 {or 10..b4!?} (10... b4 11. Na4 Nc6) 11. Nde2 d5 12. a3 Be7 13. Bg2 dxe4 14. Nxe4 Nxe4 15. fxe4 Nd7 16. Nf4 Nf6 17. e5 Nxg4 18. Bxb7 Qxb7 19. O-O-O Rd8 20. Qe2 Rxd1+ 21. Rxd1 Nxe3 22. Qxe3 Bxh4 23. Kb1 Bg5 24. Qd3 O-O {0-1 (24) Le Tue,A (1750)-Velikov,P (2418) Guingamp 2002}) (10. a3 d5) 10... b4 $1 11. Na4 (11. Nce2 e5 $1 {[#] first e5} (11... d5 12. e5 $1 Qxe5 $2 (12... Nfd7 13. f4 Nc5 14. f5 $1 $16) 13. Bf4 $1 {Black's queen is lost} Ne4 14. fxe4) 12. Nf5 (12. Nb3 d5 $1) 12... d5 $1 {now d7-d5 after e6-e5} 13. g5 hxg5 14. Bxg5 Nbd7 15. exd5 Bxd5 16. Neg3 Bxa2 (16... Qc6) 17. f4 Nc5 18. Bc4 Bxc4 19. Qg2 Rc8 20. Rhe1 Nd3+ 21. Kb1 Ba2+ 22. Kxa2 b3+ $1 23. cxb3 Nxe1 24. Qe2 Nc2 25. Kb1 Nb4 26. fxe5 Rxh2 27. Qc4 Qxc4 28. bxc4 Nh7 {0-1 (28) Ponkratov,P (2585)-Papin,V (2541) Moscow 2010}) 11... d5 $1 {[#]} (11... e5 $2 {this doesnt work after Nb3 , White can threaten Nb6!} 12. Nb3 d5 13. Nb6 $1 d4 14. Nxa8 Bxa8 15. Bf2) 12. e5 Nfd7 13. f4 Nc6 14. Nb3 (14. Nxc6 Bxc6 {[%csl Ra4][%CAl Gc6a4]} 15. b3 d4 $1) 14... d4 $1 {[#]} 15. Bf2 Ncxe5 16. Be2 d3 $19 {0-1 (25) Klimentov,R (2271)-Papin,V (2483) Voronezh 2008} * [Event "B43"] [Site "?"] [Date "2021.06.15"] [Round "?"] [White "8..b4"] [Black "against Qd2,Be3"] [Result "*"] [ECO "B43"] [Annotator "thechesscorner,@gmail.com"] [PlyCount "48"] [SourceVersionDate "2021.06.15"] {[%evp 0,48,19,19,36,36,36,26,26,26,57,38,38,43,40,31,15,13,27,22,22,22,22,7, 23,43,21,14,46,-17,20,29,-1,-36,-21,-86,-62,-111,-106,-335,-338,-338,-349,-340, -357,-400,-328,-356,-332,-338,-332]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 b5 6. Be3 Bb7 7. f3 Nf6 8. Qd2 b4 $5 9. Na4 (9. Nce2 e5 10. Nb3 (10. Nf5 d5 11. Bg5 (11. O-O-O Nbd7 12. Neg3 d4) 11... h6) 10... Qc7) 9... d5 $1 10. e5 (10. exd5 Nxd5 11. Bc4 Nd7 12. O-O-O Be7 13. Nf5 O-O 14. Nxe7+ Qxe7 15. Bd4 Rfc8 16. Bb3 Bc6 17. Rhe1 Qd8 18. Kb1 Qa5 19. Qg5 $4 (19. c4 N5f6) 19... Nc3+ $1 {0-1 (19) Golubka,P (2479)-Blomqvist,E (2507) Gothenburg 2019}) 10... Nfd7 11. f4 Nc6 {[#]} 12. Nb3 (12. Be2 Nxd4 13. Qxd4 (13. Bxd4 Bc6 14. b3 Bxa4 15. bxa4 Be7) 13... Bc6 14. b3 Bxa4 15. bxa4 Bc5) (12. Nxc6 Bxc6 13. b3 Bxa4 14. bxa4 Nc5) 12... Qc7 (12... d4 $5) (12... Be7 13. O-O-O O-O 14. Bd3 Na5) 13. Bd3 Be7 14. O-O-O O-O (14... Na5) 15. Qf2 Na5 {[#]} 16. Kb1 (16. Nbc5 Nxc5 17. Nxc5 Rac8 18. Nxb7 Nxb7 19. f5 f6) (16. Nxa5 Qxa5 17. b3 Qc7 (17... Rae8 18. Kb1 Bc6 19. Nb2 Qc7 20. Bd4 f6 21. Qe3) 18. Rhf1 a5 19. Kb1) 16... Nc4 $1 $17 17. Bc5 Nxc5 18. Nbxc5 Bc6 {[%csl Ra4][%CAl Gc6a4]} 19. Qe2 Bb5 20. Bxc4 dxc4 21. Qe3 Rac8 22. Rd6 Bxa4 23. Nxa4 Bxd6 24. exd6 Qxd6 {0-1 (24) Helshani,S (2035) -Hracek,Z (2592) Katowice 2017} * [Event "B43"] [Site "?"] [Date "2021.06.15"] [Round "?"] [White "6Be3 and a3 sideline"] [Black "?"] [Result "0-1"] [ECO "B43"] [Annotator "thechesscorner,@gmail.com"] [PlyCount "24"] [SourceVersionDate "2021.06.15"] {[%evp 0,24,28,17,48,41,41,36,31,25,56,60,52,60,42,41,33,8,7,7,-7,-7,8,11,16, -3,3]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 b5 6. Be3 Bb7 7. a3 {[#] } Qc7 (7... d6 8. Qd2 Nf6 9. f3 Nbd7 10. g4 Nb6 11. O-O-O Rc8 12. Kb1 Be7 13. Qf2 Nfd7 14. h4 {[#]} Rxc3 $1 15. bxc3 Na4 16. Bd2 Qb6 17. Rh2 O-O 18. Ka2 d5 19. Qe3 Qd6 20. Bc1 Qxh2 {0-1 (20) Choisy,M (2125)-Sulava,N (2493) Nice 2005}) (7... Nf6 8. f3 b4 9. axb4 Bxb4 10. Qd2 d5 $1 11. e5 Nfd7 12. f4 Nc5 13. Bd3 Qh4+ 14. Qf2 Qxf2+ 15. Kxf2 Nbd7 16. Na4 f6 17. Nf3 Ne4+ 18. Bxe4 dxe4 19. Nd4 Kf7 20. Rhd1 f5 21. Nxf5 Rhd8 22. Nd6+ Bxd6 23. exd6 Bd5 24. b3 g6 25. c4 Bc6 26. Bb6 Rdb8 27. Bc7 Rxb3 {0-1 (27) Cori,J (2418)-Feller,S (2570) Paris 2010}) 8. Qd2 Nf6 9. f3 d5 $1 {[#]} 10. exd5 (10. e5 Qxe5) 10... Nxd5 (10... Bxd5 11. Bf4 (11. Nxd5 Nxd5 12. Bf2 Nd7 13. O-O-O Rc8 14. Kb1 Bxa3) 11... Qb7 12. O-O-O Nc6) 11. Nxd5 Bxd5 12. O-O-O Nc6 0-1 [Event "B43"] [Site "?"] [Date "2021.06.15"] [Round "?"] [White "Be3,Bd3"] [Black "?"] [Result "*"] [ECO "B43"] [Annotator "thechesscorner,@gmail.com"] [PlyCount "44"] [SourceVersionDate "2021.06.15"] {[%evp 0,44,18,21,39,31,42,29,33,29,46,46,43,31,26,42,31,29,9,-6,18,21,19,15, 12,28,23,-44,-37,-71,-64,-102,-103,-119,-131,-142,-122,-150,-169,-349,-378, -667,-629,-939,-947,-752,-980]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 b5 6. Be3 Bb7 7. Bd3 Qc7 8. O-O (8. a3 Nf6 9. f4 (9. O-O Nc6 10. Qe2 Be7 $5 { no hedgehog here} 11. Kh1 h5 $5 {[#]} 12. f4 h4 13. Nf3 Na5 14. Nd2 h3 $1 15. g3 d5 $1 {[#]} 16. exd5 Nc4 17. Bd4 Nxd5 18. Nxd5 Nxd2 19. Qxd2 Rd8 20. Be4 Bxd5 21. Bxd5 Rxd5 22. c3 Qb7 23. Kg1 Bc5 24. Rf2 O-O {0-1 (35) De la Fuente Mayan,A (2158)-Delchev,A (2557) Andorra 2002}) 9... Bc5 10. e5 Nd5 11. Nxd5 Bxd5 12. Qd2 O-O) 8... Nf6 9. f4 (9. f3 Nc6 10. Nxc6 (10. a3 Bc5 11. Nce2 d5 12. exd5 Nxd5 13. Bf2 Rd8 14. Nxc6 Qxc6 15. Bxc5 Qxc5+ 16. Kh1 Ne3 {0-1 (39) Barrio Pareja,E (2027)-Strikovic,A (2470) El Sauzal 2004}) 10... Bxc6 11. a3 h5 12. Qd2 Bd6 $5 {[#] Bd6 and Bc6 followed by ..h7-h5!} 13. f4 Ng4 14. e5 Be7 15. Bd4 d6 $1 16. Rae1 dxe5 17. fxe5 O-O-O 18. Qf4 g5 19. Qxf7 Rxd4 20. Qg7 Rdd8 { 0-1 (20) Nortes Hernandez,P (1896)-Strikovic,A (2544) La Laguna 2010}) 9... d6 {hedgehog} (9... Bc5 10. e5 Qb6 $13) (9... b4 10. e5 (10. Na4)) 10. a3 Nbd7 { [#]} 11. Qf3 (11. Qe2 Be7 12. Nb3 (12. Rae1 Nc5) 12... h5 13. h3 h4 14. Bd4 e5 {[#]} 15. fxe5 dxe5 16. Be3 Nc5 17. Nxc5 Bxc5 18. Kh2 Bxe3 19. Qxe3 Kf8 20. Rf5 Re8 21. Raf1 Rh6 $5 22. Nd5 Bxd5 23. exd5 e4+ 24. Kh1 exd3 25. Qxd3 Qd6 26. Qd4 Kg8 27. b3 Ne4 {0-1 (27) Padmini,R (2370)-Giri,A (2764) Chess.com INT 2020}) 11... Be7 12. g4 (12. Rae1 O-O (12... Nc5 $5 13. Qg3 g6 14. e5 (14. f5 $2 gxf5 15. exf5 Rg8) 14... Nh5 $15 {[#]} 15. Qf2 Ng7 16. exd6 Qxd6 17. Ndxb5 axb5 18. Bxb5+ Kf8 {0-1 (46) Dourerassou,J (2473)-Fedorchuk,S (2673) Bastia 2014}) 13. Qg3 Nc5 14. Bf2 Rad8 {[#]} 15. h3 Qb8 16. b4 Nxd3 17. cxd3 Rc8 18. Rc1 Nd7 19. f5 e5 {1/2-1/2 (33) Zaitsev,I (2445)-Akopian,V (2600) Moscow 1992} 20. f6 Bxf6 21. Nf5 Kh8 22. Be3 Rg8 23. Qf2 Rc6 24. Qa2 Rf8 25. Nd5 Rxc1 26. Rxc1 Bd8) 12... h6 $1 (12... g5 $5 13. fxg5 Ne5 14. Qh3 Nfxg4 15. g6 O-O-O $13 16. gxf7 Qd7 17. Kh1 h5 {with active play for Black}) 13. Rae1 g5 $5 {[#] h7-h6 and g7-g5 works well against Qf3} 14. f5 (14. fxg5 hxg5 15. Bxg5 Ne5 16. Qf4 Nfxg4 17. Bxe7 Qb6 $5 (17... Qxe7)) 14... e5 $1 15. Nb3 h5 $1 {[#]} 16. Bxg5 (16. gxh5 Nxh5 {[%CAl Gh5f4]}) 16... hxg4 17. Qg2 O-O-O 18. Be3 Rh3 19. Qe2 Rdh8 20. Bxb5 axb5 21. Nxb5 g3 22. Nxc7 gxh2+ {0-1 (22) Alekseeva,I (2177)-Bocharov,D (2597) Kazan 2016} * [Event "B43"] [Site "?"] [Date "2021.06.15"] [Round "?"] [White "6a3,7Bd3"] [Black "Qc7"] [Result "*"] [ECO "B43"] [Annotator "thechesscorner,@gmail.com"] [PlyCount "40"] [SourceVersionDate "2021.06.15"] {[%evp 0,40,20,20,42,42,42,30,36,33,58,48,48,51,53,40,27,25,22,14,11,29,54,54, 54,40,41,26,38,30,47,-7,-7,-4,38,20,69,-25,-34,-8,-22,-375,-381]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 b5 6. a3 Bb7 7. Bd3 Qc7 (7... Bc5 8. Nb3 Be7 9. O-O d6) 8. O-O Nf6 9. Kh1 h5 $5 {[#]} 10. f4 (10. Qe2 Bc5 11. Nb3 Ng4 12. f4 Ba7 13. e5 d5 $1 14. exd6 Qxd6 15. Na5 Bc6 16. Ne4 Qc7 17. Nxc6 Nxc6 18. c3 Ne7 19. h3 Rd8 20. g3 Qc6 21. hxg4 hxg4+ 22. Kg2 f5 23. Be3 fxe4 24. Bc2 Nf5 25. Rh1 Rxh1 26. Rxh1 Nxe3+ {0-1 (26) Diaz Leon,R (2245)-Meijers,V (2465) El Sauzal 2004}) 10... Ng4 11. Nf3 Bc5 12. Qe2 d6 13. b4 Ba7 14. Nd1 Nd7 15. c4 bxc4 16. Bxc4 a5 17. bxa5 Rc8 18. Nb2 Qxa5 19. Bd2 Qb6 20. Nd1 Rxc4 $1 { [%CAl Gb7a6] 0-1 (20) Demmler,J (1853)-Meister,J (2481) Berlin 2008} * [Event "B43"] [Site "?"] [Date "2021.06.15"] [Round "?"] [White "6a3,7Bd3"] [Black "d6,Nf6"] [Result "*"] [ECO "B43"] [Annotator "thechesscorner,@gmail.com"] [PlyCount "40"] [SourceVersionDate "2021.06.15"] {[%evp 0,40,19,31,42,35,42,39,39,34,43,43,43,51,32,27,31,16,16,9,8,-8,12,-2, -15,-20,-12,-24,-28,-27,-22,-40,-33,-58,-53,-51,-58,-53,-44,-27,-18,-40,-60]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 b5 6. a3 Bb7 7. Bd3 d6 8. O-O Nf6 {[#]} 9. Be3 (9. Bg5 Nbd7 10. Kh1 h6 11. Bh4 g5 $1 12. Bg3 h5 13. e5 dxe5 14. Nxe6 fxe6 15. Bg6+ Ke7 16. Qe2 Qc7 17. h4 Bh6 18. hxg5 Bxg5 19. f4 h4 { 0-1 (19) Smetanin,A (1937)-Zhigalko,A (2604) Minsk 2013}) 9... Nbd7 10. f4 { [#] typically Rc8!?,Nc5 g7-g6 to avoid Nf5 and e6-e5! breakthrough} Be7 (10... Rc8 $5 11. Qf3 g6 $5 12. Rae1 Bg7 13. Kh1 O-O 14. Qh3 Nc5 15. f5 e5 $5 (15... Nxd3 $5 16. cxd3 exf5 17. exf5 Re8 18. Re2 Nd5) 16. Nf3 Ncxe4 17. Nxe4 Bxe4 18. Bxe4 Nxe4 19. Bh6 Nf6 20. Ng5 Rxc2 21. fxg6 hxg6 22. Bxg7 Kxg7 23. Rxf6 Kxf6 24. Rf1+ Kxg5 25. Qe3+ Kh5 26. g4+ Kxg4 {0-1 (26) Pruijssers,R (2501)-Bok,B (2591) Hoogeveen 2015}) (10... Qc7 11. Qe2 Be7 12. Bf2 O-O 13. Rae1 Nc5 14. e5 Nxd3 15. cxd3 Nd5 16. Nxd5 Bxd5 17. Qg4 Rad8 18. Rc1 Qb8 19. Rfe1 Rc8 $17 { 0-1 (46) Philippe,G (2342)-Fedorchuk,S (2628) Paris 2017}) (10... g6 $5 11. Qf3 Bg7 12. Qg3 Nc5 13. f5 O-O 14. fxe6 fxe6 15. b4 Nxd3 16. cxd3 Qd7 17. Rac1 e5 $1) 11. Qe2 O-O 12. Rad1 Rc8 13. Bf2 Nc5 14. Kh1 g6 $5 {[#]} 15. Bg1 Qc7 16. h3 e5 $1 {[#]} 17. fxe5 dxe5 18. Bh2 Rcd8 19. Nf3 Nh5 20. Qe3 Bd6 {0-1 (37) Dimitrijevic,A (2292)-Zhigalko,A (2478) Hengelo 2004} * [Event "B43"] [Site "?"] [Date "2021.06.15"] [Round "?"] [White "5Bd3 5..Nc6!? 7Nd2"] [Black "lines"] [Result "*"] [ECO "B42"] [Annotator "thechesscorner,@gmail.com"] [PlyCount "30"] [SourceVersionDate "2021.06.15"] {[%evp 0,30,26,14,37,47,44,40,19,37,76,36,45,43,39,16,50,63,56,42,54,38,40,14, 14,9,11,9,20,22,30,28,24]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Nc6 6. Nxc6 dxc6 7. Nd2 (7. Bf4 Qf6 8. Be3 e5 9. Nd2 Be6 10. Qe2 Bd6 11. a4 Qe7 12. a5 Nf6) (7. f4 e5) (7. O-O e5 8. a4 (8. Nd2 Nf6 9. Nc4 {see main line}) 8... Nf6 9. a5 Be6 10. Qe2 Bc5 11. Be3 Bxe3 12. Qxe3 O-O 13. Nd2 Qc7 14. h3 Rad8) ( 7. c4 $6 e5 8. O-O Bc5 $1 $15) (7. Nc3 $6 e5 8. O-O Nf6 9. Kh1 Bc5 10. f3 (10. Bg5 h6 11. Bh4 g5 12. Bg3 Qe7 13. Qe2 h5 $1 14. f3 h4 15. Bf2 Nh5 16. Rfe1 Ng3+ 17. Bxg3 hxg3 18. h3 Bxh3 {0-1 (18) Muratovic,A (2385)-Solak,D (2365) Kladovo 1996}) (10. f4 Ng4 $1) 10... h5 11. Qe2 h4 12. Be3 Nh5 $1 13. Bxc5 Ng3+ 14. Kg1 Nxe2+ 15. Bxe2 Qg5 16. Rfe1 Bh3 17. Bf1 Bxg2 18. Be3 Qg6 19. Bxg2 h3 20. Re2 O-O-O {0-1 (20) Fournier,C (2120)-Miezis,N (2483) Condom 2002}) 7... e5 8. Nc4 (8. Qh5 Bd6 9. Nc4 Nf6 10. Nxd6+ Qxd6 11. Qh4) 8... Nf6 9. O-O Qc7 {[#]} 10. a4 (10. Bd2 $5 b5 11. Ba5 Qb8 12. Nb6 Ra7 13. Nxc8 Qxc8 14. a4 Qb8 15. axb5 axb5 16. Bc3 Bc5 {0-1 (40) Handke,F (2405)-Miezis,N (2596) Andorra 2001}) (10. Be3 $5 Be6 (10... Nd7 11. a4 (11. f4 $5 b5 12. Nxe5 Nxe5 13. fxe5 Qxe5 14. Qf3 Be6 15. Bf4 Qc5+) 11... b5) 11. Bb6 Qb8 12. a4 {white scores well here}) 10... Be6 11. Qe2 (11. Qf3) 11... Bc5 {[#]} 12. a5 (12. Kh1 $5 O-O 13. f4 Bxc4 14. Bxc4 exf4 15. Bxf4) 12... O-O (12... Bxc4 $5 13. Bxc4 O-O-O (13... h6 $5 14. c3 O-O-O 15. b4 Ba7) (13... Bb4 14. Bg5 Ng8 15. f4 f6 {1-0 (26) Leko,P (2691) -Quparadze,G (2506) Riadh 2017} 16. Bh4 exf4 17. Bxg8 Bc5+ 18. Kh1 g5 19. Be1 Rxg8 20. Qc4) 14. Bg5 Qe7 15. b4 Ba7) 13. Bg5 Nd7 14. c3 Rfe8 15. Rfd1 {[#]} h6 {Miezis} (15... Be7 16. Be3 Bc5 17. b4 Bxe3 18. Qxe3 Rad8 19. f3 g6 {1/2-1/2 (70) Quesada Perez,Y (2603)-Neiksans,A (2485) Balaguer 2010}) * [Event "B43"] [Site "?"] [Date "2021.06.15"] [Round "?"] [White "5 Bd3 Nc6"] [Black "6th misc moves"] [Result "*"] [ECO "B42"] [Annotator "thechesscorner,@gmail.com"] [PlyCount "20"] [SourceVersionDate "2021.06.15"] {[%evp 0,20,18,23,50,46,48,52,38,38,49,38,37,37,39,39,40,17,27,27,27,31,34]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Nc6 6. Be3 (6. Nf3 Bc5 7. O-O d6 8. c4 (8. Nc3 Nge7 9. Qe2 Ng6 10. Be3 Bxe3 11. Qxe3 b5 {[#]} 12. Rfd1 O-O 13. Be2 Qc7 14. Rd2 Bb7 15. Rad1 Rfd8 {Hillarp-Persson}) 8... Nge7 (8... Nf6 9. Nc3 O-O 10. h3 (10. Bf4 Ng4 11. Rc1 Nge5 12. a3 Qf6 {Chandler}) 10... Nd7) 9. Qe2 O-O 10. Nc3 e5 {[#]} 11. h3 Be6 12. Be3 Ng6 {0-1 (55) Narva,M (2252)-Kveinys,A (2486) Viljandi 2015}) (6. c3 e5 7. Nf5 d5 8. exd5 Qxd5 9. Ne3 Qd8) (6. Nb3 Nf6 7. O-O Be7 8. Nc3 (8. c4 d5 9. cxd5 exd5 10. exd5 Nxd5 11. Qe2 O-O 12. Rd1 Be6 13. Be4 Bf6 14. Nc5 Nd4 {0-1 (62) Xu,Y (2505)-Cramling,P (2484) Shenyang 2000}) 8... O-O 9. f4 d6 {[#] Hedgehog with knight on b3} 10. Qf3 $5 (10. Kh1 Bd7 11. Bd2 Rc8 {Goryachkina}) (10. Qe2 Qc7 11. Bd2 b5 12. Rae1 b4 13. Nd1 e5 14. Ne3 exf4 15. Rxf4 a5 16. Kh1 Rb8 17. c3 Qa7 {0-1 (71) Zapata,A (2490)-Polgar,J (2555) New York 1989}) 10... Nb4 $1 11. Bd2 (11. e5) 11... Nxd3 12. cxd3 Nd7 13. Kh1 b5 14. d4 Bb7 15. f5 Nf6 {1/2-1/2 (47) Tissir,M (2387)-Demchenko,A (2679) St Petersburg 2018} 16. a3 Rc8 17. Rae1 Qd7 18. fxe6 fxe6 19. Qh3) 6... Nf6 7. O-O (7. Nc3 d5) 7... e5 $1 {[#]} 8. Nf3 (8. Nxc6 dxc6 9. h3 Bd6 10. a4 O-O 11. Nd2 Be6 12. a5 Qe7 13. Bc4 Bc5 14. Bxc5 Qxc5 15. Bxe6 fxe6 16. Nb3 Qb4 {0-1 (88) Sipila,V (2365)-Miezis,N (2416) Finland 2018}) (8. Nb3 d5 {[#]} 9. exd5 Nxd5 $15) (8. Nf5 g6) 8... d5 9. exd5 Nxd5 {[#]} 10. Qe2 Be7 * [Event "B43"] [Site "?"] [Date "2021.06.15"] [Round "?"] [White "6Bd3 Qc7"] [Black "WPlans with c4 or Nc3"] [Result "*"] [ECO "B42"] [Annotator "thechesscorner,@gmail.com"] [PlyCount "125"] [SourceVersionDate "2021.06.15"] {[%evp 0,87,25,36,53,39,37,43,35,26,63,50,80,62,53,39,51,36,31,30,32,18,12,21, 19,15,29,25,-3,0,0,8,22,13,19,-46,-46,-77,-39,0,0,0,0,-225,-164,-154,11,-13,0, 0,0,0,0,0,0,0,0,0,27,27,0,0,20,0,0,0,74,58,91,77,108,118,104,114,224,165,168, 169,261,113,145,150,98,165,178,162,162,119,239,228]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Qc7 6. O-O Nf6 7. Qe2 (7. Nc3 Bc5 8. Nb3 Ba7 (8... Be7 9. f4 (9. Qe2 d6 10. a4 b6 11. f4 Nbd7 12. Bd2 Bb7 13. Rae1 h5 {[#]} 14. Kh1 ( 14. f5 $1) 14... g6 15. Nd4 h4 16. Nf3 h3 17. g3 Nc5 18. Kg1 Rc8 19. b4 Nxd3 20. cxd3 Qd7 21. Rc1 O-O 22. d4 Rxc3 23. Bxc3 Nxe4 24. Bb2 Bf6 {0-1 (41) Garcia Pantoja,R (2732)-Hansen,E (2920) Chess.com INT 2020}) 9... d6 10. Qe2 Nc6 11. Bd2 b5 12. Rae1 b4 13. Nd1 Bb7 14. Nf2 a5 15. c3 e5 16. c4 (16. cxb4 axb4 17. fxe5 (17. Rc1 Rxa2 18. fxe5 dxe5 19. Be3 O-O 20. Bb5 Raa8) 17... dxe5 18. Ng4 O-O 19. Nxf6+ Bxf6 20. Rxf6 gxf6 21. Qf2 Qd6 22. Bc4 Rfd8 23. Bh6 f5) 16... a4 {[#]} 17. Nc1 exf4 18. Bxf4 O-O 19. b3 axb3 20. axb3 Rfe8 21. Kh1 Nd7 22. Ng4 Nce5 {0-1 (42) Fedorov,A (2614)-Svidler,P (2743) Turin 2006}) 9. Kh1 Nc6 10. f4 d6 11. Qe2 (11. Bd2 Bd7 12. a4 h5 13. Qe2 h4 14. Rae1 Qd8 15. Be3 Nh5 {1-0 (43) Carlsen,M (2862)-Firouzja,A (2749) Lichess.org INT 2021}) 11... h5 {[#]} 12. Be3 Bxe3 13. Qxe3 Bd7 14. Rae1 O-O-O 15. Na4 Kb8 16. Nb6 Be8 17. c4 h4 18. Rc1 h3 19. g3 Ng4 {0-1 (34) Kadric,D (2543)-Caruana,F (2827) Batumi 2018}) (7. c4 Nc6 $5 8. Nxc6 dxc6) 7... d6 (7... h5 $5 8. h3 Bc5 9. Nb3 Ba7 10. Be3 (10. e5 Nd5 11. c4) 10... Nc6 11. Bxa7 Rxa7 12. f4 d6 13. Nc3 b5 14. Rae1 b4 15. Nd1 e5 16. f5 a5 17. Qf2 Ne7 18. Ne3 Bd7 19. Nc4 a4 20. Nbd2 Rb7 21. b3 Bc6 22. Re2 Nc8 23. Rc1 Na7 24. bxa4 Bxa4 25. c3 bxc3 26. Rxc3 Ke7 27. Nf3 Rc8 28. Rb2 Rcb8 {0-1 (67) Stubberud,O (2202)-Miezis,N (2527) Gausdal 2006}) (7... Nc6 8. Nxc6 bxc6 9. e5 $1 Nd5 10. a3) (7... Bc5 8. Nb3 (8. Nf3 Nc6) 8... Be7 9. c4 d6 10. Nc3 b6 11. Bd2 Nbd7 12. f4 (12. f3 Ne5 $11) 12... Bb7 {[#]} 13. Rae1 Rd8 (13... O-O 14. e5 dxe5 15. fxe5 Ne8 16. Bf4 g6 17. Be4 Ng7 18. Bxb7 Qxb7 19. Ne4 Rac8 20. Bg5 Bxg5 21. Nxg5 b5 22. c5 Qc7 23. Ne4 Ne8 24. Nd6 Nxd6 25. exd6 Qa7 26. Qf2 {1-0 (44) Akopian,V (2685)-Gajewski,G (2616) Moscow 2012}) 14. Rf3 (14. g4 Nc5 15. Bc2 Nxb3 16. axb3 h6 17. g5 hxg5 18. fxg5 Nd7 19. g6 fxg6 20. Qg4 Qc5+ 21. Rf2 Ne5 22. Qxe6 Bc8 23. Qd5 Nf3+ 24. Kf1 Nxh2+ 25. Kg2 Bh3+ { 0-1 (25) Schmit,V (2171)-Nikolov,M (2539) Noisiel 2020}) 14... O-O 15. Rh3 g6 { [#]} 16. Kh1 h5 17. Nd4 Ng4 18. Rf1 Nc5 19. Bb1 Bf6 20. Nf3 Qc6 21. b4 (21. f5 $1 Bxc3 22. Bxc3 exf5 23. Nd4 Qe8 24. Nxf5 f6 25. Ng3 Rf7) 21... Bxc3 22. Bxc3 Nxe4 23. Ba1 $2 (23. Nd4 Nxc3 24. Rxc3 Qe8) 23... b5 24. Qb2 e5 25. Bxe4 Qxe4 26. cxb5 Qxf4 27. bxa6 Bxa6 28. Re1 Rc8 29. Rh4 Bd3 30. Qb3 Rc1 31. Bc3 Rc8 { 0-1 (31) Stukopin,A (2544)-Akopian,V (2682) Yerevan 2014}) 8. c4 Nbd7 (8... g6 $5 9. Nc3 Bg7 {[#]} 10. Be3 (10. h3 O-O 11. Rd1 Nbd7 12. Nf3 b6 13. Bf4 Nh5 14. Bg5 Bb7 15. Rac1 Rfe8 {[#]} 16. Bb1 Rac8 17. Qd2 Bf8 18. b3 Qb8 19. Bh6 Be7 20. Ne2 Ne5 21. Nfd4 Qa8 22. Qe3 Rc5 23. f4 Nd7 24. b4 Rc7 25. f5 exf5 26. exf5 Bh4 27. Ne6 fxe6 28. fxg6 Ndf6 29. g3 Bh1 {0-1 (40) Murtazin,R (2364)-Artemiev,V (2692) Sochi 2017}) 10... O-O 11. Rac1 (11. h3 Nbd7 12. Nf3 b6 13. Rac1 Bb7 14. Rfd1 Rac8 15. b3 Nc5 16. Bf4 Nh5 {[#]} 17. Bd2 Rfe8 18. Re1 Qb8 19. Qf1 f5 $5 20. exf5 Bxf3 21. gxf3 gxf5 22. Bb1 Kh8 23. Qe2 Be5 {0-1 (41) Svidler,P (2727) -Bocharov,D (2560) Berlin 2015}) 11... Nbd7 12. Rfd1 b6 13. f3 Bb7 14. b3 Rac8 {[#]} 15. Kh1 (15. Qf2 Qb8 16. Bf1 Rfe8 17. Nde2 Bc6 18. Nd4 Ba8) 15... Qb8 16. Qf2 Rfe8 17. Nde2 Ba8 18. Rc2 Nc5 (18... Ne5 19. Bxb6 d5) 19. Rcd2 Red8 20. Bc2 Ne8 21. Bd4 Bxd4 22. Qxd4 Qc7 23. Qe3 Qe7 24. b4 Nd7 25. Bb3 Rc7 26. Na4 Rb8 27. a3 (27. b5) 27... Bc6 28. Nb2 b5 $1 {0-1 (48) Golubev,R (2337)-Bocharov,D (2602) Voronezh 2016}) 9. Nc3 Ne5 {[#]} (9... Be7 10. Bd2 (10. f4 $5 b6 (10... O-O 11. Kh1 b6 12. Bd2 Re8 13. Rae1 Bb7 14. Nf3 e5 15. Nd5 Bxd5 16. cxd5 exf4 17. Bxf4 Bf8 18. Bg5 h6 19. Bxf6 Nxf6 20. Nd4 Nxd5 21. Bc4 Nf6 22. Rxf6 gxf6 23. Bd5 Rac8 24. Nf5 Re5 {0-1 (42) Saric,I (2687)-Fedorchuk,S (2607) Bastia 2018}) 11. Kh1 Bb7 12. Bd2 O-O (12... g6 13. Rac1 O-O (13... Rc8 14. f5 gxf5 15. exf5 Rg8 16. Nf3 e5) 14. f5 $1 gxf5 15. exf5 e5 16. Nd5 (16. Nf3 Kh8 17. Bh6) 16... Qd8 17. Ne6 $1 fxe6 18. fxe6 Nc5 19. Bf5 Kh8 20. Rc3 (20. b4) 20... Nxd5 21. cxd5 Bxd5 22. Rh3 {1-0 (30) Caruana,F (2640)-Kveinys,A (2533) Dresden 2008}) (12... h5 13. f5 $1 e5 14. Nc2 (14. Nf3 Rc8 15. b3 Nc5 16. Bc2) 14... Nc5 15. Nd5) 13. f5 $5 e5 {[#]} 14. Nb3 (14. Nc2 Nc5 15. Bg5 Rfc8 16. Bxf6 Bxf6 17. Ne3 Nxd3 18. Qxd3 Rab8 19. Rad1 Bg5 {1/2-1/2 (26) Idani,P (2581) -Iturrizaga Bonelli,E (2635) Zuerich 2019}) 14... Nc5 (14... h6 15. Rf3 (15. a4 Rab8 16. Be1 Nc5 17. Bc2 Bc6 18. Bf2 Nxb3 19. Bxb3 Rfc8 20. Rfd1) 15... Nh5 16. g3 Rfc8) 15. Nxc5 bxc5 (15... dxc5 16. g4) 16. g4 $1 h6 17. h4 Nh7 18. g5 $18 { 0-1 (73) Meier,G (2424)-Pantsulaia,L (2609) Playchess.com INT 2006}) 10... b6 11. Kh1 h5 12. f4 h4 13. Rae1 Bb7 {[#]} 14. f5 $1 Nc5 15. Bb1 (15. fxe6 fxe6 16. Bc2 $1 (16. b4 Nxd3 17. Qxd3)) 15... h3 16. b4 e5 17. bxc5 (17. Nf3) 17... exd4 18. Nd5 Bxd5 19. cxd6 $4 (19. exd5 hxg2+ 20. Qxg2 bxc5 21. Rxe7+ Kxe7 22. Qxg7 $18) 19... hxg2+ 20. Qxg2 Bxd6 21. exd5+ Kd7 22. h3 Qxc4 23. Rf3 Rae8 24. Qxg7 Rxe1+ 25. Bxe1 Rxh3+ 26. Kg1 Rxf3 27. Qxf7+ Kc8 28. Qe6+ {0-1 (28) Mekhitarian,K (2554)-Hansen,E (2606) Chess.com INT 2020}) (9... g6 10. Rd1 Bg7 11. Be3 b6 12. f3 O-O 13. Rac1 Bb7 14. Qd2 (14. Qf2)) 10. f4 Nxd3 11. Qxd3 Be7 12. b3 O-O 13. Bb2 b6 14. Rae1 Bb7 {[#]} 15. Kh1 Nd7 $6 (15... Rad8 16. Qg3 Rfe8 $4 (16... Kh8) (16... Nh5) 17. Nd5 $3 exd5 18. Nf5 $18) (15... Rfe8 $1 16. e5 (16. Qh3 Nd7 (16... Qc5 17. e5)) (16. Rf3 Rad8 17. Rh3 g6 18. f5 Bf8 19. Qg3 Bg7 20. Qh4 Nh5 21. g4 exf5) 16... Nh5 17. Qh3 dxe5 18. fxe5 g6 19. Ne4 Qxe5 20. Nf6+ Qxf6 21. Rxf6 Bxf6) 16. f5 {[#]} Nc5 (16... Bh4 $1 17. Re3 (17. Rd1 Nc5 18. Qh3 Bf6) 17... Rae8 18. Rh3 Qd8 19. Qd1 Bf6 20. Qh5 h6 21. Bc1 $5 Bxd4 (21... Bg5 22. Bxg5 Qxg5 23. Qxg5 hxg5 24. Kg1) 22. Bxh6 Nf6 23. Qg5 Nxe4 24. Qh5 exf5 25. Be3 f6 26. Qh7+ Kf7 27. Qh5+ Kg8 28. Qh7+ $11) 17. Qg3 Bf6 18. Ndb5 $1 axb5 19. Nd5 $1 {[#]} exd5 20. Bxf6 g6 21. Qh4 (21. exd5 $1 Rae8 22. Qh4 $1 Nd7 23. Be7 Ne5 24. f6 h5 25. Rf5 $18) 21... Nd7 22. Be7 f6 (22... Ne5 $2 23. f6 h5 24. Rf5 $3 (24. Qg5 Kh7) 24... dxe4 25. Rxh5) 23. fxg6 hxg6 24. Bxf8 Rxf8 25. exd5 Ne5 26. Rxf6 Qe7 27. Rxf8+ Qxf8 28. Kg1 bxc4 29. bxc4 Ba6 30. Re4 Qf5 (30... Qg7 $11) 31. Qd8+ Qf8 32. Qc7 g5 33. h3 Qf5 34. Re1 Bxc4 35. Qxd6 Nf7 36. Qxb6 g4 37. hxg4 Qxd5 38. a4 Qd7 39. Qg6+ Kf8 40. Qf6 Qxa4 41. g5 Qa7+ 42. Kh1 Qa6 43. Qd4 Bd3 44. Ra1 Qg6 45. Ra8+ Ke7 46. Ra7+ Kf8 47. Ra8+ Ke7 48. Qc5+ Qd6 49. Ra7+ Ke6 50. Qc8+ Ke5 51. Qe8+ Kf4 52. Qxf7+ Kg4 53. Qd7+ Qxd7 54. Rxd7 Bf5 55. Rg7 Bb1 56. Kg1 Bf5 57. Kf2 Bb1 58. Ke3 Bc2 59. Rc7 Bf5 60. g6 Bxg6 61. Rg7 Kf5 62. Rxg6 Kxg6 63. Kf4 {1-0 (63) Robson,R (2673)-Nakamura,H (2736) Lichess.org INT 2020} * [Event "B43-Hedgehog variations"] [Site "?"] [Date "2021.06.15"] [Round "?"] [White "5Bd3 Qc7 Hedgehog"] [Black "0-0,Nc3 with d6"] [Result "*"] [ECO "B43"] [Annotator "thechesscorner,@gmail.com"] [PlyCount "54"] [SourceVersionDate "2021.06.15"] {[%evp 0,54,18,13,48,44,45,37,42,38,57,34,56,42,35,49,69,56,45,0,34,42,59,1,21, 12,6,13,17,-15,0,-2,-19,-8,-18,7,4,-6,-12,0,-16,0,-9,0,0,-245,-306,-314,-329, -362,-361,-350,-273,-330,-334,-543,-550]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Qc7 6. O-O Nf6 7. Nc3 d6 8. f4 Nbd7 {[#]} 9. Qe2 (9. Kh1 b5 10. a3 ( 10. Qe2 Bb7 11. Bd2 Be7 12. b4 $5 (12. Rae1 Nc5 13. e5 dxe5 14. fxe5 Nfd7 15. Qg4 Nxe5 16. Qxg7 O-O-O 17. Qxe5 Qxe5 18. Rxe5 Nxd3 19. cxd3 Rxd4 20. Rxf7 Rxd3 {0-1 (66) Jovanovic,Z (2516)-Kozul,Z (2616) Sibenik 2012}) 12... O-O {[#]} 13. a4 bxa4 14. Nxa4 d5 $1 (14... Rfe8) 15. e5 Ne4 16. Be1 Nb6 17. Nb2 Rfd8 18. Qe3 Rac8 19. c4 Nd2 20. Bxd2 dxc4 21. Be4 c3 {0-1 (39) Degraeve,J (2592)-Van Wely, L (2663) Chartres 2017}) 10... Bb7 11. Qe2 Be7 12. Bd2 h5 $1 {[#] Key position: Nbd7,Nf6 a6-b5 and h5, against Bd2} 13. Rae1 (13. Rf3 $5) 13... h4 14. Nf3 (14. Nd1 h3 $1 15. g3 g6 16. Nf2 Nc5 17. b4 Na4 18. Kg1 Nc3 19. Bxc3 Qxc3 20. Nb3 Rc8 21. Nd1 Qc7 22. Na5 Ba8 23. e5 dxe5 24. fxe5 Nd7 25. c4 Rh5 26. cxb5 Nxe5 27. Be4 Qb6+ 28. Nf2 Bxe4 29. Qxe4 Rf5 30. Rd1 axb5 31. Nb3 Nf3+ 32. Kh1 Ng5 { 0-1 (32) Rahal,M (2431)-Bologan,V (2683) Cannes 2005}) (14. Rf3 $5 {[#]} Nc5 15. b4 Nxd3 16. cxd3 Rc8 17. Rh3 g6 18. Rf1 e5 (18... Nh5) 19. Nb3 exf4 20. Rxf4 Nd7 21. Rf1 O-O 22. Nd4 Ne5 23. Nc2 {1-0 (35) Tissir,M (2387)-Golubov,S (2482) St Petersburg 2018}) 14... h3 15. g3 e5 {[#]} 16. b4 Nb6 17. Ra1 Nc4 18. Bxc4 Qxc4 19. Qxc4 bxc4 20. Rfe1 Ng4 21. Nd5 f5 22. Nc7+ Kd7 23. Nxa8 Rxa8 24. fxe5 fxe4 25. exd6 Bf6 {0-1 (25) Fernandes,J (2095)-Indjic,A (2622) Lisbon 2020 }) (9. Qf3 b5 10. a3 Bb7 11. Be3 Be7 {Black scores well here} 12. g4 (12. Rae1 h6 $5 {idea h6-g5 against f4-Qf3}) 12... h6 {[#]} 13. Rae1 g5 14. f5 e5 15. Nb3 h5 16. Bxg5 hxg4 17. Qg2 O-O-O 18. Be3 Rh3 19. Qe2 Rdh8 20. Bxb5 axb5 21. Nxb5 g3 22. Nxc7 gxh2+ {0-1 (22) Alekseeva,I (2177)-Bocharov,D (2597) Kazan 2016}) ( 9. Be3 b5) 9... Be7 (9... b5 10. Bd2 Bb7 11. b4 (11. Kh1 {see Degreave-Van Wely }) (11. a4 b4) 11... Be7 12. Rae1 Nb6 13. e5 dxe5 14. fxe5 Nfd5 15. Ncxb5 axb5 16. Bxb5+ Nd7 17. c4 Nxb4 18. Qg4 O-O 19. Kh1 Nxe5 20. Qg3 Nbd3 21. Bh6 g6 22. Re3 Rxa2 23. Rxd3 Rxg2 24. Qxg2 Bxg2+ 25. Kxg2 Nxd3 26. Bxf8 Bxf8 {0-1 (26) Adhiban,B (2561)-Smirin,I (2657) New Delhi 2012}) 10. Be3 (10. Bd2 b5 (10... Qb6 $5)) 10... b5 {[#]} 11. a3 (11. Rae1 Bb7 12. Qf3) 11... Bb7 {[#] Black delays castle and plays Nbd7,Nf6,Be7,Bb7,b5} 12. Nb3 (12. Kh1 O-O 13. Rf3 g6 14. Raf1 Nc5 15. Bg1 e5 $1 {[#]} 16. fxe5 dxe5 17. Nf5 gxf5 18. Rxf5 Nxd3 19. Qxd3 Ne8 20. Qg3+ Ng7 21. Be3 Qd6 22. Rd1 Qg6 {0-1 (34) Jakubowski,K (2525) -Gajewski,G (2622) Warsaw 2012}) (12. Rae1 Nc5 (12... h5 13. Nf3 h4 14. Ng5 Nc5 15. Bd4 $13) 13. Bf2 Rc8 14. Kh1 g6 15. Bg1 O-O 16. Nf3 Nh5 $1 {[#]} 17. Qd2 e5 $1 (17... Bf6) 18. f5 Nf4 {[#]} 19. Be3 g5 20. f6 Bxf6 $15 21. g3 Nfxd3 22. cxd3 Bg7 23. Nxg5 Qd7 24. g4 (24. Nd5 Bxd5 25. exd5 f6 $15) 24... f6 25. Nf3 Qxg4 26. Qd1 Qh5 27. b4 Ne6 28. Nd5 Bxd5 29. exd5 Nc7 30. Rg1 Nxd5 31. Bh6 Rc7 32. Re4 Kh8 33. Rh4 Qf5 34. Rg3 Bxh6 35. Rxh6 Qf4 {0-1 (36) Chadaev,N (2484) -Vitiugov,N (2604) St Petersburg 2007}) 12... h5 $1 {[#] delayed castle} 13. h3 h4 14. Bd4 {[#]} e5 $1 15. fxe5 dxe5 16. Be3 Nc5 17. Nxc5 Bxc5 18. Kh2 Bxe3 19. Qxe3 Kf8 $1 {[#]} 20. Rf5 Re8 21. Raf1 Rh6 $15 22. Nd5 Bxd5 23. exd5 e4+ 24. Kh1 exd3 25. Qxd3 Qd6 26. Qd4 Kg8 27. b3 Ne4 {0-1 (27) Padmini,R (2370)-Giri,A (2764) Chess.com INT 2020} * [Event "?"] [Site "?"] [Date "2021.07.03"] [Round "?"] [White "g3,Bg2 plan"] [Black "quick h7-h5 for Black"] [Result "*"] [ECO "B47"] [Annotator "thechesscorner,@gmail.com"] [PlyCount "52"] [EventDate "2021.07.03"] [SourceVersionDate "2021.06.15"] {[%evp 0,52,14,20,42,50,46,33,29,34,47,9,64,67,58,53,56,37,26,25,26,5,15,3,3,0, 0,-7,-11,-36,-15,-73,-36,-29,-42,-50,-47,-47,-39,-130,-144,-201,-145,-160,8, -97,-86,-145,-183,-626,-596,-616,-647,-1047,-1082]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. g3 Qc7 6. Bg2 Nc6 {[#]} 7. Nc3 (7. O-O h5 8. Nf3 (8. Re1 h4 9. Nxc6 bxc6 10. e5 hxg3 11. hxg3 Ne7) 8... Nge7 {[#]} (8... Bc5 $5 9. Bf4 d6) 9. Bf4 e5 10. Be3 d6 11. Nc3 f6 12. Na4 Bg4 13. Nb6 Rd8 14. h3 Be6 15. c4 Ng6 16. Rc1 {0-1 (38) Fernandes,A (2353)-Iturrizaga Bonelli,E (2598) Lisbon 2020}) 7... h5 $5 {[#]} 8. O-O (8. h3 h4 (8... Nf6 9. O-O Bc5 10. Nxc6 bxc6 11. Bf4 e5 12. Bg5 d6 13. Qf3 Nd7 14. Rad1 Nf8 15. Na4 Ne6 16. Bc1 Ba7 17. b3 h4 18. g4 Bb7 19. c3 Rd8 20. Rfe1 a5 21. Bf1 O-O 22. Be3 Bxe3 23. Qxe3 Nf4 {0-1 (55) Spraggett,K (2545)-Nisipeanu,L (2667) Linares 2015}) 9. g4 Nge7 10. Nde2 Ng6 11. O-O b5 12. a3 Bc5 {[#]} 13. Kh1 Bb7 14. f4 Rd8 15. Qe1 Ba7 16. Bd2 Nce7 17. Nc1 d5 $1 18. Nd3 dxe4 19. Bxe4 Rd4 20. Bf3 O-O 21. Qe2 Nd5 22. Nxd5 Bxd5 23. Bxd5 exd5 24. Bc3 Re4 25. Qg2 Re3 26. Rae1 Rg3 {0-1 (39) Berelowitsch,A (2574) -Vallejo Pons,F (2697) Germany 2011}) 8... h4 9. Nxc6 (9. Re1 hxg3 10. hxg3 Ne5 (10... d6 11. Nxc6 bxc6 12. Be3 Nf6 {[#]} 13. Na4 Rb8 14. c4 c5 15. b3 Be7 16. Qe2 Bb7 17. Nc3 Nd7 18. Rad1 Rd8 19. Bc1 Ne5 20. Bb2 Nc6 21. Nb1 Bf6 22. Bxf6 gxf6 23. Nc3 Nd4 24. Qd3 e5 {0-1 (54) Malakhov,V (2707)-Grischuk,A (2785) Moscow 2013}) 11. f4 Nc6 12. Be3 d6 13. Nxc6 bxc6 14. Na4 Rb8 15. c4 c5 16. Qd2 (16. b3 Bb7 17. Qe2 Be7 18. Rad1 Nf6 {0-1 (48) Henderson de la Fuente,L (2491) -Shankland,S (2691) chess24.com INT 2020}) 16... Nf6 17. Bf3 Bb7 18. Nc3 g5 $6 (18... Nd7 19. Kg2 g6 20. Rh1 Bg7) 19. fxg5 Nd7 20. Bf4 Ne5 21. Bxe5 dxe5 22. Rad1 Be7 23. g6 fxg6 24. Bg4 Rd8 25. Qf2 Rd6 26. Rxd6 Qxd6 27. Rd1 Qb6 { 1/2-1/2 (49) So,W (2770)-Pichot,A (2621) Chess.com INT 2020}) 9... bxc6 10. a4 hxg3 11. hxg3 Nf6 {[#] no castle for Black} 12. Be3 a5 13. Re1 e5 $1 14. Bf3 d6 $15 15. Na2 Be6 16. b3 Qd7 17. Qd3 {[#]} Ng4 18. Bd2 f6 $1 19. b4 g5 $5 (19... Qf7) 20. bxa5 Qh7 21. Bg2 Qf7 22. Nb4 Bc4 23. Qc3 $4 {[#]} d5 (23... Rh1+ $3 24. Bxh1 (24. Kxh1 Qh5+ 25. Kg1 Qh2#) 24... Qh5) 24. Nxc6 (24. exd5) 24... Qh5 $1 25. Qxc4 dxc4 26. Rab1 Bc5 {0-1 (26) Bagrationi,A (2467)-Firouzja,A (2728) Chess.com INT 2020} * [Event "?"] [Site "?"] [Date "2021.04.02"] [Round "?"] [White "6Bd3 and 7 Nf3"] [Black "sicilian kan"] [Result "*"] [ECO "B43"] [Annotator "thechesscorner,@gmail.com"] [PlyCount "23"] [EventDate "2021.04.02"] [SourceVersionDate "2021.06.15"] 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 b5 6. Bd3 Qb6 7. Nf3 Qc7 (7... Nc6 8. O-O Qb8 9. Bg5 (9. Re1 Bd6 10. e5 (10. Qe2) 10... Bc7 11. Bf4 Nge7 12. Qe2 Ng6 13. Bg3 Bb7 14. Rad1 (14. h4) 14... Nce7 15. Be4 Bxe4 16. Nxe4 O-O 17. Rxd7 Nd5 18. Nd6 (18. Qd2) 18... Nb6 {0-1 (30) Grischuk,A (2746)-Svidler,P (2739) Khanty-Mansiysk 2011}) 9... Nge7 10. a4 b4 11. Ne2 Ng6 12. Ned4 Nxd4 13. Nxd4 Bd6 14. Qh5 Nf4 15. Bxf4 Bxf4 16. Nf3 O-O {1-0 (53) Ponomariov,R (2706) -Svidler,P (2759) Almaty 2016}) 8. O-O Bb7 (8... d6 9. a4 $1 b4 10. Na2 Nc6 11. Bd2 Rb8 12. c3 bxc3 13. Bxc3 Nf6 14. b4 $1 $16 {Ponomariov}) 9. Re1 (9. a4 b4 10. Ne2 (10. Na2 Nf6 11. Qe2 Nc6 12. e5 Ng4 13. Bf4 d6 14. exd6 Bxd6) 10... Nc6 11. Bf4 Bd6 $5) (9. e5 f5 10. Re1 Be7 11. Nd4 (11. Bf4 Nh6 12. Nd4 (12. Ng5 O-O 13. a3 Nc6 14. Qh5 Bxg5 15. Qxg5 Ng4 {0-1 (53) Hovhannisyan,R (2600)-Vitiugov, N (2709) Plovdiv 2012}) 12... Nf7 13. Nxf5 exf5 14. Bxf5 O-O 15. Nd5 Bxd5 16. Qxd5 Qc4 17. Qxa8 Nc6 18. Qxa6 Qxf4 19. Bxd7 Nd4 {0-1 (28) Caprio,G (2354) -Caruana,F (2727) Perugia 2011}) 11... g6 12. Bf4 Nc6 13. Nxf5 gxf5 14. Qh5+ Kf8 15. Bxf5 Nd4 16. Bxh7 Nf5 17. Qg6 Bb4 18. Ne4 Bxe1 19. Rxe1 Bxe4 20. Rxe4 d5 21. Bxg8 Rxg8 22. Qxe6 dxe4 23. Qxf5+ Qf7 {1/2-1/2 (41) Bartel,M (2648) -Vitiugov,N (2722) Chess.com INT 2020}) 9... Be7 (9... Bc5 $5 10. e5 (10. Qd2 Be7 (10... Ne7 11. b4 Bd6 12. a4 O-O 13. Bb2 Bxb4 14. Nxb5 Qa5 15. c3) 11. b4 Nf6 12. a4 O-O 13. e5 Ng4 14. axb5 f5 15. h3 Bxf3 16. hxg4 Bxb4 17. Bb2 Bxg4 18. Nd5 Bxd2 19. Nxc7 Ra7 20. b6 (20. Nxa6 Bxe1 21. Rxe1) 20... Rb7 {0-1 (85) Strugnell,C (2327)-Rapport,R (2723) Belgrade 2018}) 10... f5 11. exf6 (11. Ng5 g6 12. Nf3 Ne7) 11... Nxf6 12. Ne4 Bxe4 13. Bxe4 Nc6 14. Bxc6 Qxc6 15. Ne5 { Adams-Topalov} Qd5) (9... Nf6 10. e5 Nd5 11. Ne4 (11. a4) 11... Nc6 12. Ng3 ( 12. c4) 12... g6 13. c3 Bg7 14. Qe2 O-O 15. a4 b4 16. c4 Nde7 17. Bf4 Na5 18. Rad1 Bxf3 19. Qxf3 Nec6 20. Qe3 Rac8 21. h4 b3 {0-1 (57) Movsesian,S (2673) -Andreikin,D (2737) Tallinn 2016}) 10. e5 f5 {see 9.e5 lines} 11. Nd4 g6 (11... b4 12. Na4 Nc6 13. c3 Nh6 14. Bxh6 gxh6 15. Qh5+ Kd8) 12. Bf4 *