GridHearth Puzzles · Paperback on Amazon
270 Puzzles from Easy to Hard with a Mixed Final Challenge and Complete Solutions
Paperback available on Amazon in selected countries
Paperback · 8.5 × 11 inches · 192 pages · black ink on white paper
Start with 80 Easy puzzles, continue through 80 Medium and 80 Hard puzzles, then finish with 30 Mixed challenges. The Mixed practice pages keep each puzzle's level hidden; its numbered answer reveals the level and unlocking technique.
Eight worked examples explain the techniques before the practice sections. A progress overview follows the opening page of each phase, and complete solutions follow its puzzles.
Inside the book
The worked pages cover Singles, Locked Candidates, Pairs, a Naked Triple, and an X-Wing. Each phase builds on the earlier techniques, while the Mixed finish asks you to decide which approach fits the puzzle.
Practice grids leave room for pencil notes. Answer grids are compact. This is not a large-print book.
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