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The Chess Mysteries of the Arabian Knights: Smullyan, Raymond M.: 9780394514673: Books - Amazon.ca
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The Retrograde Analysis Corner
Fun stuff
A retrograde analysis problem: in this position the white king has been accidentally knocked off the board. Where did it stand? : r/chess
Cécile Haussernot (@HaussernotC) / Twitter
Cryptic Quandary #1. Applied Retrograde Analysis | by Jude Quintana | Medium
Looking back – Christmas puzzles | ChessBase
Is there a resource for chess puzzles that are altered just enough to discourage easy engine use to solve? - Chess Stack Exchange
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Chess Puzzles | Brilliant Math & Science Wiki
Retro chess — simply entertaining | ChessBase
Can You Solve These 5 'Easy' Retrograde Puzzles? - Chess.com
