[Event "Zurich"] [Site "?"] [Round "0"] [White "Geller"] [Black "Euwe"] [Result "0-1"] [ECO "E41"] [Opening "Nimzo-Indian: 4.e3 c5"] 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. a3 Bxc3+ 6. bxc3 b6 7. Bd3 Bb7 8. f3 Nc6 9. Ne2 O-O 10. O-O Na5 {While White is gearing up for a kingside attack, Black calmly wins the pawn on c4.} 11. e4 Ne8 {Black avoids the nasty pin 12 Bg5 and prepares to meet 12 f4 by 12...f5. White's next move prevents this, but takes another tempo.} 12. Ng3 cxd4 13. cxd4 Rc8 14. f4 Nxc4 15. f5 f6 { Black couldn't let White play 16 f6, when 16...Nxf6 17 Bg5 followed by 18 Nh5 would be just as bad as 16...gxf6 17.Nh5 and 18 Bh6 or letting White take ong7. } 16. Rf4 {White gets ready to break in on h7, but Euwe has seen that White will still be a long way from mate. While Geller is getting ready to hit h7, Euwe will get his own pieces into position to invade on the queenside.} 16... b5 {Now Black has b6 for his queen, and it becomes apparent that White's king may come under long range fire.} 17. Rh4 Qb6 18. e5 Nxe5 19. fxe6 Nxd3 20. Qxd3 Qxe6 21. Qxh7+ Kf7 22. Bh6 { Now White threatens 23 Nh5, and it's not clear how Black will stop this but...} 22... Rh8 {Geller must have missed this. Black gives up a whole rook just to deflect the queen from c2, and all of a sudden it's White who's getting mated.} 23. Qxh8 Rc2 24. Rc1 Rxg2+ 25. Kf1 Qb3 26. Ke1 Qf3 0-1