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| White to make his 56th move in Spanton (1880) - Fernando De Andres Gonalons (2030), Bad Wiessee Senioren-Cup round five |
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56.h5?
This gives White a second passed pawn, but the pawns are too close together to win, although the text is analysis engine Komodo9's second choice, and both Komodo9 and Stockfish10 reckon White is winning.
Best is 56.Bf8, but you need to see White's next move (and evaluate it correctly) after Black 'passes' with a move such as 56...Bc2.
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Winning after 56.Bf8 Bc2 is 57.f5+! I rejected it because after 57...Bxf5 (57...gxf5 58.h5 wins for White because his passers are far apart) 58.h5 gxh5 59.d7 Kxd7 60.Kxf5, White's bishop is the wrong colour for promoting his a pawn. What I failed to realise is that although Black's king can get to a8 easily enough, it will eventually run out of moves, eg black king on a8, white king on c8 and white bishop on b8. Black will then be forced to play ...b4, after which White captures axb4, and the rest is easy (it is not stalemate as Black has a second pawn he will have to move, giving White time to 'unstalemate' Black).
The game continued:
56...gxh5 57.Kxh5 Bf5 58.Kg5 Bh3 59.Kh4
The engines reckon I missed another win here, eg 59.Bf8 Kf7 60.Bh6 Bd7 (not 60...Ke6?, as the engines suggest at first, since 61.f5+! forces Black to give up his bishop, and we get similar lines to the previous note) 61.f5 Be8 62.Kf4 Bd7 63.Ke5 Be8 64.Bf4 Bd7 65.Be3 Be8 66.Bg5 - the engines continue to mess around with bishop moves like this, convinced White is winning, but never make progress, so here at least I did not miss a win.
59...Bf5 60.Kg3
Again the engines want to play on the kingside, with 60.Kg5 or 60.Kh5. They reckon White is still winning, but are unable to improve White's position.
60...Kd5 61.Kf3 Kd4 62.Ke2
This hardly helps, but by now the win has well and truly gone.
62...Ke4 ½–½
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