Conceptis Puzzles is the world’s leading number-logic and picture-logic puzzle supplier to magazine, newspaper, book, mobile, game console, and board game providers. Every day, more than 10 million pages with Conceptis puzzles are printed in 40 countries worldwide. Their previous Puzzlewright books include Sudoku Variants, Black Belt Kakuro, Mensa® Sudoku, Samurai Sudoku, Paint-doku, and dozens of others.

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