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Retroanalyse im Schach

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Meisterwerke

in der Retroanalyse

34 - Lord Dunsany

Fairy Chess Review, 1943

[r3k3/ppp5/2p2P2/3PpK2/8/NP1R4/p1P3P1/1b3N1R]

10+9. Matt in 2 Zügen

[r3k3/ppp5/2p2P2/3PpK2/8/NP1R4/p1P3P1/1b3N1R]

Lösung

What was black's last move? It can't have been with Bb1 or Pa2. It can't have been d6xe5 either, because this would require 8 captures by black. If the last move was d7xc6, then the bishop on b1 is promoted. For this, the g-pawn needs to capture once, and promote on f1. Bust this requires 7 captures. It can't have been e7-e5: pawn on c6 and the pawn on a2 account for all black captures. But all those captures were on white squares, and white misses his black-squared bishop too. So black's last move was with his king or his rook.
1. Ke6 ~ (OOO?) 2. Rh8#


Solution by Philippe Schnoebelen