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Queen versus rook

Queen versus rook. Always wins against a lone rook, unless there is an immediate draw (perpetual check / stalemate) Long known – great piece of chess history – thought to be an easy win Computers changed that -= difficult win against accurate play. Method.

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Queen versus rook

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  1. Queen versus rook • Always wins against a lone rook, unless there is an immediate draw (perpetual check / stalemate) • Long known – great piece of chess history – thought to be an easy win • Computers changed that -= difficult win against accurate play

  2. Method • Force rook back into a third-rank defence • Reaching the Philidor position from a second rank defence • Winning the rook / forcing mate

  3. Queen versus Rook • Famous position analysed by Philidor(1777) • Win for white, when black to move • How to achieve black to move? • How to win Rook and force a win?

  4. second rank-defence

  5. second rank-defence

  6. third rank defence • M. Euwe (1958)

  7. Beware – draw via stalemate • D. Ponziani (1782)

  8. Saavedra Position • White to move and win!

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