Five puzzle types, medium difficulty, verified by machine to have exactly one solution each. Print it at home, or open it on a tablet and solve it right there.
Sudoku, Kakuro, Calcudoku, Futoshiki, and Skyscraper, plus a How to Solve guide on every page in case you’re new to one of them.
Enter your email below and we’ll send the free sample pack. You’ll also start receiving occasional emails from Hapraker Press about new puzzles and releases — unsubscribe anytime, no hard feelings.