1.e4 e6 2.e5 d5 3.exd6 Bxd6 4.d4 Nf6 5.Be3 b6 6.Nf3 Bb7 7.Be2 Nbd7 8.Qd3 O-O 9.Nbd2 c5 10.dxc5 Nxc5 11.Bxc5 Bxc5 12.Qxd8 Rfxd8 13.O-O Ne4 14.Nxe4 Bxe4 15.c3 Rd7 16.Rad1 Rad8 17.Rxd7 Rxd7 18.Rd1 Rxd1+ 19.Bxd1 Bb1 20.b4 Be7 21.a4 Bf6 22.Nd4 Bxd4 23.cxd4 Bd3 24.f4 Kf8 25.Kf2 Ke7 26.Bb3 Kd6 27.Ke3 Bf1 28.g3 Bg2 29.f5 Bd5 30.Bxd5 Kxd5 31.fxe6 fxe6?! { More precise was 31...Kxe6!, leaving black's pawn structure intact, while white is stuck having to defend his isolated d-pawn } 32.Kd3 a6 33.b5? { This leaves white's b5 pawn too far advanced. It will be easier for black's king to attack b5 than for white's king to attack b6. White should instead prevent h5 with g4 } 33...axb5 34.axb5 h5 35.h3 g5 36.g4 hxg4? { h4! was the move, placing white in zugzwang. If 37. Ke3 or Kc3, black plays 37...Kc4 or Ke4, respectively } 37.hxg4 e5 38.dxe5 Kxe5 39.Ke3 Kd5 40.Kd3 Kc5 41.Ke4 Kxb5 42.Kf5 Ka6? { Any other king move held the draw, but this leaves the black king too far from both eventual queening squares } 43.Kxg5 b5 44.Kh6? { Now it is white's turn to err. Kf4 or Kf5 leads to a position where black's pawn can be stopped by the white king, but the black king is too far away from the white pawn. A possible line is 44. Kf4 b4 45. Ke3 Kb5 46. g5 and the pawn cannot be caught } 44...b4 45.g5 b3 46.g6 b2 47.g7 b1=Q 48.g8=Q Qh1+ 49.Kg6 Qg1+ 50.Kf7 Qxg8+ 51.Kxg8 ½-½