[Event "New York"] [Site "?"] [Round "0"] [White "Tartakower"] [Black "Lasker"] [Result "0-1"] [ECO "A20"] [Opening "English: King's (1...e5)"] 1. c4 e5 2. a3 Nf6 3. e3 Be7 4. Qc2 O-O 5. Nc3 d6 6. Nf3 Re8 7. Be2 Bf8 8. O-O Nc6 9. d4 Bg4 10. d5 Ne7 11. h3 Bd7 12. Nh2 Qc8 13. e4 Ng6 {The pawn form ation suggests a Queenside attack by White based on Pb4 and eventually Pc5. Black's plan, on the other hand, should be the advance of ... Pf5, with Kingside attacking chances.} 14. f4 $5 {This advance is normally anti-positional since after ... exf4 Black obtains a strong outpost square on e5 and the half-open e-file with which to press on the now backward e-pawn. However, this position is exceptional in that White can "get away" with the usually anti-positional advance Pf4. This is because he will obtain strong pressure on the newly opened f-file, whic, in conjunction with the concentration of his minor pieces on or near the Black Kingside, will provide enough pressure to compensate for the aforementioned positional liabilities. In this game Tartakower utilizes these factors well, until a critical moment when he misses a chance for a double exchange sacrifice which would have forced Black to work hard to achieve a draw. Having missed his chance he winds up in a seriously compromised position, which Lasker quickly exploits to his advantage} 14... exf4 15. Bxf4 Nxf4 16. Rxf4 Be7 $1 {Showing a very fine positional sense. The weakening of e5, consequent to the advance 14. Pf4, has givven Black the chance to occupy the outpost at e5. The purpose of the text move is to prepare to occupy e5 by a coordinated sequence of moves. Incidentally, the text also prevents the possibility of White pushing Pe4-e5} 17. Raf1 (17. Nf3 Nh5 {White loses the exchange}) 17... Rf8 18. Qd3 Be8 19. Qg3 $2 {After this Black is able to occupy e5 and repulse White's attack. As Tartakower later commented, he and a group of strong Berlin players analyzing this positoin found that a brilliant double exchange sacrifice would have maintained the pressure and force Black to defend resourcefully to hold the game} (19. Rxf6 $3 Bxf6 20. Rxf6 $1 gxf6 {Black's shattered Kingisde must be defended with great care. Their analysis is very long so we omit it here, merely contenting ourselves with pointing out the proper culmination of White's pressure on the f-file}) 19... Qd8 20. Nd1 Nd7 21. Ne3 { now Black wins material} (21. Nf3 Bf6 {Black retains a definite positional grip }) 21... Bg5 22. Rg4 f6 23. Qf2 (23. -- h5) 23... h5 24. Rg3 h4 $1 (24... Bh4 25. Rxg7+ $1 Kxg7 26. Qxh4) 25. Rg4 Bh5 { White's attack has been thorougly refuted} 26. Nf5 Bxg4 27. Nxg4 Qe8 28. Bf3 Ne5 29. Nxe5 Qxe5 30. Nxh4 Bxh4 31. Qxh4 f5 32. exf5 Rxf5 33. Re1 Qxb2 34. Bg4 Qd4+ 35. Kh2 Raf8 36. Qe7 Qf4+ 37. Kh1 Re5 38. Rxe5 dxe5 39. Qxc7 e4 40. Qe7 Qf6 41. Qxb7 Qa1+ 42. Kh2 Qe5+ 43. Kg1 Rb8 44. Qd7 Rb1+ 45. Kf2 e3+ 46. Ke2 Rb2+ 47. Ke1 Qc3+ 48. Kf1 Qc1+ 49. Bd1 Qxd1# 0-1