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1957 / The Hague

A rook, a queen and a bishop windmill

C. Chaurang — B. J. Moore

Moore gives a rook and allows his queen to be captured. His bishop alternates its own checks with discovered rook checks to capture knight, rook and queen.

Sacrifices · Piece coordination · Calculation

THE DETAIL

International Junior Team Tournament, The Hague, 15 July 1957. 22.Nc3 uncovers the rook’s attack on the black queen. Moore answers with Rxb2+ and Rb8+, then prepares Bb2 with Ba3. After Rxe5, the bishop reaches b2 and drives the king to b1. Capturing on c3 opens the rook’s check: the windmill begins. The bishop returns to b2, then takes the rook on e5. A final cycle brings it through c3 to the queen on d2. Chaurang resigns after 31...Bxd2+. The video adds 32.Rxd2 as clearly labelled analysis: after the bishop is recaptured, each side has a rook and bishop, with two extra black pawns. The king replies follow the actual game; at 28...Bxe5+, Qb4 was also a legal block. The complete 62-half-move score appears in British Chess Magazine, September 1957, p.236, reproduced by Edward Winter. Todd Bardwick independently records the combination and resignation in his windmill article.

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C. Chaurang — B. J. Moore

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C. Chaurang — B. J. Moore

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Video, explanations and animations by RookHabit. Pieces by Colin M. L. Burnett, distributed with python-chess (GPLv3+).