Strategy: If at all Black promotes one of his pawns to a queen or even a rook, he checkmates White! Not only White must queen his pawn first but also with a precondition that it should be done well in advance to go and stop Black from queening or White must queen at f8 square to gain a tempo by the check to Black king! If the pawns after exchange end up in opposing each other without a chance of creating a passed pawn, Black king is in a better position to grab them. 1.h5 [If...I try... 1.e5 fxe5 (If... 1...f5 2.h5 gxh5 3.gxf5 exf5 4.e6 yes, White queens well in advance, but Black will prefer to avoid 1...f5 and win by the main variation) 2.fxe5 Black wins by his King moves; If...I try... 1.f5 exf5 (1...gxf5 2.exf5 exf5 3.gxf5 Black king moves and wins) 2.gxf5 gxf5 (2...g5 will let White win 3.e5 fxe5 4.f6 queening with check to Black king) 3.exf5 Black king moves and wins; If...I try... 1.g5 fxg5 (1...hxg5 2.fxg5 fxg5 3.hxg5 Black king moves and wins 3...Kb3 4.Kb1 Kc3 5.Kc1 Kd4 ) 2.fxg5 hxg5 3.hxg5 Black king moves and wins] 1...gxh5 [1...g5 2.e5 fxe5 (2...f5 3.gxf5 gxf4 (3...exf5 4.e6 gxf4 5.e7 f3 6.e8Q f2 7.Qe2 wins.) ; 2...gxf4 3.exf6 and queens with a check) 3.f5 exf5 4.gxf5 and queens with a check] 2.e5 [2.gxh5 will let Black king move and win] 2...fxe5 [2...hxg4 letsWhite to get f file 3.exf6 queening with check] 3.f5 exf5 4.gxf5 queening on f file with a check and winning a tempo and game! 1-0