Series:

Kojun

24 primary works

Book 21

Cover of Sudoku Kojun - 200 Hard Puzzles 8x8 (Volume 21)

Book 22

Cover of Sudoku Kojun - 200 Master Puzzles 8x8 (Volume 22)

Book 23

Cover of Sudoku Kojun - 200 Easy to Normal Puzzles 8x8 (Volume 23)

Book 24

Cover of Sudoku Kojun - 200 Hard to Master Puzzles 8x8 (Volume 24)