White to move
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| After 49...Kd6 |
White, rated 2200, played 50.Kxg5, leading to an elementary draw.
50.Kf6 was suggested on social media (this blog’s Facebook page). It is a reasonable effort, but after 50…g4 51.e5+ Kc5, both players get queens and a draw looms.
50.e5! was White’s only winning move. Kf6, and Kf7 will follow. White is two tempi ahead of the position after an immediate Kf6 if Black plays 50...Kd5. To wit, 51.e6 Kd6 52.Kf6 g4 53.e7 Kd7 and White will promote the queen with check after 53.Kd7 54.Kf7 g3 55.e8Q+ with an easy win.
Black also loses after 50.e5! Ke7 51.Kxg5 Ke6 52.Kf4 because White can win the h-pawn and then shoulder with the king. 52...Ke7 53.Kf5 Kf7 54.e6+ (edit: a reader pointed out that 54.Ke4 here is faster, e6 can be played later) 54...Ke7 55.Ke5 Ke8 56.Kd6 Kd8
50.Kf6 was suggested on social media (this blog’s Facebook page). It is a reasonable effort, but after 50…g4 51.e5+ Kc5, both players get queens and a draw looms.
50.e5! was White’s only winning move. Kf6, and Kf7 will follow. White is two tempi ahead of the position after an immediate Kf6 if Black plays 50...Kd5. To wit, 51.e6 Kd6 52.Kf6 g4 53.e7 Kd7 and White will promote the queen with check after 53.Kd7 54.Kf7 g3 55.e8Q+ with an easy win.
Black also loses after 50.e5! Ke7 51.Kxg5 Ke6 52.Kf4 because White can win the h-pawn and then shoulder with the king. 52...Ke7 53.Kf5 Kf7 54.e6+ (edit: a reader pointed out that 54.Ke4 here is faster, e6 can be played later) 54...Ke7 55.Ke5 Ke8 56.Kd6 Kd8
White to move
In the discussion on Facebook, it was also suggested that Black should have played Kf7. White's winning technique here is the same as the line with 50.e5! Ke7.
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