Perplexing Pattern Problems & Other Puzzles by Moscovich, Ivan

Perplexing Pattern Problems and Other Puzzles Perfect Ivan Moscov

Tough Topology Problems & Other Puzzles (Mastermind Collection)

Sensational Shape Problems Other Puzzles (Mastermind Collection) - GOOD

Leonardos Mirror Other Puzzles (Mastermind Collection) - Paperback - GOOD

Ball of Confusion : Puzzles. Problems & Perplexing Posers by Johnny ball Book

Perplexing Pattern Problems & Other Puzzles by Ivan Moscovich Paperback *MINT*

Ball of Confusion: Puzzles, Problems and Perplexing Posers-Johnny Ball