Tukmakov - Korchnoi. RIGA 1.970

XXXVIII Campeonato de la U.R.S.S. 

Blancas : Tukmakov. Negras: Korchnoi. 

DEFENSA NIMZOVICH

[Event "URS-ch38"] [Site "Riga"] [Date "1970.??.??"] [Round "4"] [White "Tukmakov, Vladimir B"] [Black "Kortschnoj, Viktor Lvovich"] [Result "1-0"] [ECO "E55"] [Annotator "j2"] [PlyCount "81"] [EventDate "1970.11.25"] [EventType "tourn"] [EventRounds "21"] [EventCountry "URS"] [SourceTitle "URS-ch"] [Source "ChessBase"] [SourceDate "1999.07.01"] [SourceVersion "1"] [SourceVersionDate "1999.07.01"] [SourceQuality "1"] 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 d5 7. O-O dxc4 8. Bxc4 Nbd7 9. Qb3 (9. Qe2 $142 $14) 9... a6 10. a4 Qe7 (10... Ba5 11. Rd1 cxd4 12. exd4 Qb6 13. Qc2 Qc7 14. Bd3 h6 15. Bd2 Bb4 $14 {Portisch,L-Kortschnoj,V/ Belgrade(m/2)/1970/0.5 (31)} 16. Qb3) (10... b6 $5 11. d5 Bxc3 12. dxe6 Ba5 13. exd7 Qxd7 14. Rd1 Qc7 15. Bd2 $10 {Petrosian,T-Simagin,V/Moscow/1966/}) 11. Rd1 Ba5 (11... Rd8 12. Bd3 Ba5 13. Bd2 h6 14. Rac1 $10 {Beliavsky,A-Ribli,Z/ Belfort/1988/}) 12. Qc2 cxd4 $6 (12... Nb6 $5) 13. exd4 Nb6 14. Ba2 (14. Bd3 h6 ) 14... h6 15. Ne5 $14 Bd7 16. Bb1 Rfd8 17. Rd3 $5 Rac8 $6 (17... Bc6 $5) 18. Rg3 Kf8 19. Qd2 (19. Bxh6 $1 gxh6 20. Ng6+ fxg6 21. Qxg6 Qf7 22. Qxh6+ Ke7 23. Rg7 Rg8 24. Rxf7+ Kxf7 25. Ne4 $1 Nxe4 26. Bxe4 $18 {Tukmakov/}) 19... Nbd5 ( 19... Nc4 20. Nxc4 Rxc4 21. Rxg7 $1 Kxg7 22. Qxh6+ Kg8 23. Bg5 Qf8 24. Qh4 $40) 20. Bg6 $5 Be8 $2 (20... Bc7 21. Bd3 $16) 21. Qxh6 $1 Qb4 (21... gxh6 22. Bxh6+ Kg8 23. Be4+ Kh8 24. Bg7+ Kg8 25. Bxf6+ Kf8 26. Nxd5 exd5 27. Bxe7+ Kxe7 28. Bf5 $18) (21... fxg6 22. Qh8+ Ng8 23. Rf3+ $18) (21... Nxc3 22. Bd3 $1 Qb4 23. Qxg7+ Ke7 24. Qxf6+ $1 Kxf6 25. Bg5+ Kg7 26. Be7+ $18) 22. Qh8+ Ke7 23. Qxg7 Qxd4 (23... Nxc3 24. bxc3 Rxd4 25. Bg5 $18) 24. Nd3 (24. Nf3 $5) 24... Bxc3 25. bxc3 Nxc3 26. Ba3+ Kd7 27. Re1 Kc7 28. Be7 $1 $18 Ncd5 29. Bxd8+ Kxd8 30. Be4 Qxa4 31. Bxd5 Nxd5 32. Qg5+ Kc7 33. h4 Bb5 34. Rc1+ Bc6 35. h5 Qd4 36. Ne5 f6 37. Nxc6 bxc6 38. Qg7+ Kd6 39. h6 Nf4 40. Qg4 Qd2 $2 41. Rd1 1-0