[Event "08"] [Site "Moskva ch-SU (22.02.55)"] [Round "0"] [White "Keres"] [Black "Taimanov"] [Result "1-0"] [ECO "E21"] [Opening "Nimzo-Indian: Three Knights"] {By means of a central breakthrough, White takes advantage of Black's insecure King position in the middle} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 b6 5. Bg5 Bb7 6. e3 h6 7. Bh4 g5 8. Bg3 Ne4 9. Qc2 Bxc3+ 10. bxc3 d6 11. Bd3 f5 { important move} 12. d5 $1 {White sacrifices a central pawn to blast open lines and exploit Black's King position} (12. O-O-O) (12. O-O { Black seizes the opportunity to consolidate by ... Nbd7-f6.}) 12... exd5 13. cxd5 Bxd5 14. Nd4 (14. O-O-O) 14... Nd7 (14... Qf6 15. f3 (15. Nxf5 Qxf5 16. f3 ) 15... Nxg3 16. hxg3) 15. f3 (15. Nxf5) 15... Nxg3 16. hxg3 Qf6 17. Bxf5 O-O-O {Thus Black hopes to safeguard his King, but it rapidly becomes apparent that White has chances for a vigorous attack} 18. Qa4 $1 (18. a4 {Loh}) 18... a5 19. Kf2 {King safety} (19. c4 {Loh}) 19... h5 20. Rab1 (20. e4 {Loh}) 20... h4 21. e4 (21. g4 {Loh}) (21. gxh4 gxh4 22. Rb5 Bb7 23. Qc4 $1 { there are powerful Exchange sacrifices in the air} 23... d5 (23... Kb8 24. Nc6+ Bxc6 25. Qxc6 Nc5 26. Rxc5 bxc5 27. Rb1+) 24. Rxd5 {Keres}) 21... Bb7 22. gxh4 (22. g4) 22... gxh4 {critical} 23. Ne6 (23. Qc4 {Loh}) 23... Ne5 $2 {tactic} ( 23... Rdg8 24. Nxc7 $1 {wins an important pawn}) (23... Qxc3 24. Qd1 {Keres} ( 24. Rhc1 Qd2+ 25. Kg1 h3 $3 26. Rxc7+ Kb8 27. Bxh3 Qe3+ 28. Kh2 Rxh3+ $3 29. Kxh3 $19 {Keres})) 24. Qd4 {stronger} (24. Nxd8+ Kxd8 25. Qd4) 24... Rdg8 25. Nxc7+ $1 {Now like a house of cars the Black's King's position falls apart} 25... Kb8 26. Qxb6 Nd3+ 27. Kf1 (27. Kg1) 27... Nb4 28. Rxb4 { A convincing finish} (28. Nb5) 28... axb4 29. Nb5 1-0