White to make his 22nd move in Spanton (1940) - Albert Passchier (1748) |
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22.Bd6
Deflecting Black's queen from Black's second rank.
22...Qf6 23.Bxb7! Kxb7 24.Qe4+
So far we have been following Stockfish9's main line, but here my opponent played the analysis engine's second choice …
24...Ka6
...although the first choice of 24...Kb6 also loses, to 25.c5+. Stockfish9's main line runs 25...Ka5 26.b4+ Ka6 27.Qc6+ with Black facing catastrophic loss of material.
25.Qc6+ Nb6 26.Re5!
Much better than 26.Be5 Qe5+.
26...Qxe5
Forced, as White threatened 27.Ra5+! Kxa5 28.Qb5#
27.Bxe5 Bxe5
Here I missed unstoppable mate starting with 28.Rd7. Instead I played 28.Qb5+? Kb7 29.Qxe5 (again 29.Rd7 was a quicker win) and was never less than winning, according to my analysis engines, but the game lasted a further nerve-wracking 46 moves.
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