The Ultimate Brain Health Puzzle Book for Adults, Vol. 2: Even More Crosswords, Sudoku, Cryptograms, Word Searches, Logic Grids, and Calcudoku Puzzles! (Ultimate Brain Health Puzzle Books) Danesi, Marcel
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logic Grid Puzzles: 50 Challenging Deduction Games Inspired by Real-World Facts and Fictional Adventures (Clues & Grids) Cosmopolitan, Tresor