Series:

Hidoku Puzzles

4 primary works

Book 2

Cover of Hidoku Puzzles - 200 Easy to Medium 9x9 vol. 2

Book 3

Cover of Hidoku Puzzles - 200 Hard to Expert 9x9 vol. 3

Book 4

Cover of Hidoku Puzzles - 400 Easy to Expert 9x9 vol. 4

Book 5

Cover of Hidoku Puzzles - 400 Easy to Expert 10x10 vol. 5