The Hardest Chess Puzzle - Puzzle Prime

White to move and mate in 6. Can you tell what is so unusual about this puzzle?

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[M, Natarajan] on . *FREE* shipping on qualifying offers. Mate in 3 Moves: A Collection of 500 Chess Puzzles with Solutions

Mate in 3 Moves: A Collection of 500 Chess Puzzles with Solutions

Solve This If YOU ARE A GENIUS The Hardest Chess Puzzle Ever

Solve This If YOU ARE A GENIUS The Hardest Chess Puzzle Ever

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Nunn, John: : Books

John Nunn's Chess Puzzle Book: Test and Improve Your Over-the-Board Decision-making