The Black Pawn is about to promote, may be to a queen. Can White stop it and win the game? If the queen has to be sacrificed to stop the pawn promotion, it will be a draw due to insufficient material. White King needs to come and help. Everytime the pawn is unable to move, the White King may come one step closer. There are several ways Black can make mistakes and they will have to be taken advantage of.

1.Kb5 Ke1 2.Qe4+ Kd2 3.Qf3 Ke1 4.Qe3+ Kf1 Now that the pawn can not advance...

5.Kc5 Kg2 6.Qe2 Kg1 7.Qe3 Kg2 8.Qe2 Kg1 9.Qg4+ Kh1 [9...Kf1 Blunder? 10.Kd4 Another step closer! 10...Ke1 11.Qg3 Ke2 12.Qg2 Ke1 13.Ke3 Now, if the pawn is promoted to queen, there is a checkmate awaiting on d2. 13...f1N+ Underpromotion to save the mate, well...for the time being.. (13...f1Q 14.Qd2# ) 14.Kd3 Ng3 15.Qf3 zugzwang.. 15...Ne2 16.Qxe2# ]

10.Qf3+ Kg1 11.Qg3+ Kh1 [11...Kf1 12.Kd4 another step closer 12...Ke2 13.Qg2 Ke1 14.Ke3 f1N+ 15.Kd3 Ng3 16.Qf3 Ne2 17.Qxe2# ]

12.Qf3+ [12.Qxf2 Stalemate and draw!]

12...Kg1 13.Qg3+ Kh1 14.Qf3+ draw by thirdfold repetition. 1/2-1/2

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