Monday 8 March 2021

Knight v Bishop (part 53)

White has just captured on b5 in Spanton (1994) - Nils Vonhoff (1777), Guernsey 2012. Who stands better, and by how much?
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Black has a protected passed pawn, but his bishop is bad because it is hemmed in by its own pawns and has no targets. The analysis engines Stockfish12 and Komodo12.1.1 reckon the position is dead-equal.
42...Ke6 43.Ke3 Kd5
NV offered a draw.
44.Nd4 Be8
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45.h5!?
Double-edged, but the only serious try for an advantage.
45...gxh5 46.Nxf5 Bd7!?
This is fine, but if Black is happy with a draw then 46...Bf7 is simpler.
47.Ng3 h4 48.Nxe4 Bf5
Other moves also draw, eg 48...h3 49.Nf6+ Kd6 50.Kf3 (50.Nxb6?? h2) Bf5 51.Nh5 Be6, when my original notes show Houdini1.5a reckoned White is better but the engine was unable to find a way to make progress. My modern engines rate the position as dead-equal.
49.Nd2
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49...Ke6??
Inexplicable.
50.Nxc4 a4 51.Kf3 1-0

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