[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"] 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. c4 Nf6 6. Bd3 Nc6 7. Nxc6 dxc6 8. O-O e5 9. Kh1 Bc5 10. Nc3 Ng4 11. f3 Nxh2 {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"] 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. c4 Nf6 6. Nc3 Qc7 7. Bd3 (7. a3) ( 7. f3) 7... Nc6 8. Nxc6 dxc6 9. O-O e5 10. f4 (10. Bg5 Be7) (10. Be3 Ng4 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... Bc5+ 11. Kh1 O-O 12. Qf3 b5 13. fxe5 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 "34"] [SourceVersionDate "2021.06.15"] 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 hxg3 15. Be3 Rxh2+ 16. Kg1 Rxg2+ 17. Kxg2 Qxe3 {0-1 (17) Koskela,N (2237)-Seeman,T (2403) Myyrmanni 1999} * [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"] 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 h5 13. N1d2 a5 14. e5 Ng4 15. Ne4 a4 16. Nbd2 Nd4 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 Bxe3 11. fxe3 Qc7 12. Qd4 (12. Qd6 Qxd6 13. exd6 f5 14. b4 Rb8 15. a4 bxa4 16. Rxa4 Nh6 17. Bxa6 O-O {0-1 (36) Horvath,T (2424)-Epishin,V (2628) Geneve 2003}) 12... Ne7 (12... f5 13. exf6 (13. a4 b4 14. Qxb4 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 Nxd6 16. exd6 Bb7 17. Kf2 Bc6 18. b4 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"] 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 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 {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 O-O 14. Bd2 Nc5 {white does not threaten e4-e5 so Black did not push e6-e5} 15. Rae1 Nfd7 16. Be3 Bf6 {controls e5} 17. Bg1 Rfe8 18. Qf3 g6 19. Qh3 Bg7 20. Nf3 f5 {0-1 (57) Barua,D (2555)-Kasparov,G (2851) Internet 2000} * [Event "?"] [Site "?"] [Date "2021.06.15"] [Round "?"] [White "9Qe2!?"] [Black "?"] [Result "*"] [ECO "B43"] [Annotator "thechesscorner,@gmail.com"] [PlyCount "24"] [SourceVersionDate "2021.06.15"] 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) (9... d6 $6 10. a4 $1 b4 11. Na2 Nf6 12. Nxb4 $1 d5 13. Nxd5 $1 exd5 14. exd5+) 10. Nd1 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 "31"] [SourceVersionDate "2021.06.15"] 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 14. Rad1 Rac8) 13... h5 $1 {launching the attack, not castling} 14. Nd4 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 11. e5 $5 (11. a3 Nbd7) 11... dxe5 12. fxe5 Nd5 13. Nxd5 Bxd5 14. a4 $5 b4 15. Qe2 Be7 16. Rxf7 $5 * [Event "?"] [Site "?"] [Date "2021.06.15"] [Round "?"] [White "9a4,9Re1"] [Black "?"] [Result "*"] [ECO "B43"] [Annotator "thechesscorner,@gmail.com"] [PlyCount "60"] [SourceVersionDate "2021.06.15"] 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 17. Bxc4 Qxc4 18. c3 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 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 16. exd5 Nxd5 17. Bg5 Bg7 18. f4 h4 19. Ne4 f5 20. fxe5 Bxe5 21. Ned2 h3 22. Nf3 O-O 23. Nxe5 Nxe5 24. Qg3 hxg2 25. Rf2 Nxd3 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"] 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 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... h6 10. O-O-O (10. h4 Bb4 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... b4 $1 11. Na4 (11. Nce2 e5 $1 12. Nf5 d5 $1 13. g5 hxg5 14. Bxg5 Nbd7 15. exd5 Bxd5 16. Neg3 Bxa2 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 12. e5 Nfd7 13. f4 Nc6 14. Nb3 d4 $1 15. Bf2 Ncxe5 16. Be2 d3 {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"] 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 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 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 Bc6 14. b3 Bxa4 15. bxa4 Bc5) 12... Qc7 13. Bd3 Be7 14. O-O-O O-O 15. Qf2 Na5 16. Kb1 Nc4 $17 17. Bc5 Nxc5 18. Nbxc5 Bc6 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 "*"] [ECO "B43"] [Annotator "thechesscorner,@gmail.com"] [PlyCount "24"] [SourceVersionDate "2021.06.15"] 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 Nxd5 11. Nxd5 Bxd5 12. O-O-O Nc6 * [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"] 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 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) 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 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) 10. a3 Nbd7 11. Qf3 (11. Qe2 Be7 12. Nb3 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 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 13. Qg3 g6 14. e5 Nh5 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}) 12... h6 $1 (12... g5 $5) 13. Rae1 g5 $5 14. f5 e5 $1 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} * [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"] 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 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 { 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"] 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 $1 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 { 0-1 (46) Philippe,G (2342)-Fedorchuk,S (2628) Paris 2017}) 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} *