Series:

Heyawake Puzzles

3 primary works

Book 1

Cover of Heyawake Puzzles - 200 Easy to Medium 9x9 vol. 1

Book 2

Cover of Heyawake Puzzles - 200 Hard to Expert 9x9 vol. 2

Book 3

Cover of Heyawake Puzzles - 200 Easy to Medium 10x10 vol. 3