Watch out! These puzzles are mind melting! But if you dare, grab a pen and take on these two hundred all-new extra challenging puzzles.

Features: 200 hard puzzles
Big grids for easy solving
Introduction by leg...

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Watch out! These puzzles are mind melting! But if you dare, grab a pen and take on these two hundred all-new extra challenging puzzles.

Features: 200 hard puzzles
Big grids for easy solving
Introduction by legendary puzzlemaster Will Shortz



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