[Event "USA Ch"] [Site "New York, NY USA"] [Date "1946.10.??"] [Round "5"] [White "Kramer, George Mortimer"] [Black "Horowitz, Albert Israel"] [Result "1-0"] [WhiteElo "2238"] [BlackElo "2510"] [Variant "Standard"] [ECO "E70"] [Opening "King's Indian Defense: Kramer Variation"] [Annotator "https://lichess.org/@/ChessLifeOnline"] [Source "https://lichess.org/study/DoXqdW8a/C2rN3KAc"] [Orientation "white"] 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nge2 { The Kramer Variation! This is the sixth game in the database to reach this position, with the first being Regedzinski – Foltys, Lodz, 1938, and Botvinnik playing this move in 1939 and again in 1941. But, this is White's first victory with 5. Nge2, after four draws and, in Alatortsev – Smyslov, Moscow, 1942, a loss. } 5... O-O 6. g3 Nbd7 7. Bg2 e5 8. O-O Re8 9. d5 a5 10. h3 Nc5 11. Be3 Nfd7 12. Qd2 f5 { Nowadays, a quick h2-h3 and g2-g4 is a common prophylactic plan intended to frustrate Black's usual kingside expansion. } 13. Bg5 Nf6 14. Rae1 fxe4 15. g4 { Gaining the g3-square for the knight and beginning to carve out space on the kingside and in the center! White seldom plays for this part of the board in the King's Indian Defense, often being relegated to slow plans on the queenside, so this strategy can be seen as the theoretical contribution of 5. Nge2. } 15... Rf8 16. Ng3 Rf7 17. Ncxe4 Ncxe4 18. Nxe4 Nxe4 19. Rxe4 Qf8 20. f4!? { It might seem odd to improve Black's dark-squared beast in this way, but Kramer had a plan. } 20... b6 21. fxe5 Rxf1+ 22. Bxf1 Bxe5 23. Bg2 Bd7 24. Rxe5!? { What an Exchange sac! Black is stuck with a rook on a rather closed board and an uninspiring light-squared bishop against a bishop pair that might be able to do some damage. } 24... dxe5 25. d6 c6 26. Bd5+!? { Perhaps Mikhail Tal was unfamiliar with this game when he later said "There are two types of sacrifices: correct ones, and mine!" } (26. b3 { retains very realistic chances. }) 26... Kh8?? { The semi-bluff pays off! } (26... cxd5 { was critical. } 27. Qxd5+ Kg7! (27... Kh8? { was worse: } 28. Be7! { although Black hangs on after an "only move," parting with the rook but saving mate and entering an equal endgame: } 28... Qf4! (28... Qg8?? 29. Bf6+) 29. Qxa8+ Kg7 $10) 28. Qxe5+ (28. Be7 { is not effective now, as there is no mating net: } 28... Qc8 29. Qxe5+ Kg8 30. Qd5+ Be6 $19) (28. Qd2 { is likewise too slow, as any queen move diffuses White's threats. } 28... Qf3 29. Bh6+ Kg8 $19) 28... Kf7 (28... Kg8 { should also hold on to a material advantage. } 29. Qd5+ Kg7 30. Qd4+ { but, eventually, Black will have to come to f7 to avoid a perpetual check. }) 29. Qd5+ Be6 30. Qb7+ Kg8 { and it is unclear how White can continue. } 31. Bh6 (31. d7 { immediately is worse, as Black will still remain piece-up, but White will not even have an advanced d-pawn for his troubles. }) 31... Qxh6 32. Qxa8+ Qf8 $17 { still leaves White down a piece, and advancing the d-pawn is difficult. }) 27. Be7! { A fabulous intermezzo. } 27... Qg7 (27... Qf4?? { Note that other queen moves, including this one, all hang mate! } 28. Qxf4 exf4 29. Bf6#) 28. Qf2! { The queen is a goner! } 28... cxd5 29. Bf6 d4 30. Bxg7+ Kxg7 31. Qf3 { White emerges with a winning material advantage. } 31... Rf8 32. Qd5 Kf6 33. g5+ Kxg5 34. Qxe5+ Rf5 35. Qe7+ Kf4 36. Qxd7 d3 37. Qxf5+ { 1-0 White wins. } 1-0