White to move and winIn the actual game, white ( a super GM with 2700+ FIDE rated player) blunder with 64. b5?? and after 64... e1=Q 65. Rxe1 1/2-1/2 the game ended in a draw because both will queen after 65...Kxe1 66. b6 g3 67.b7 g2 68. b=Q g=Q
Try to find what white missed on move 64.