Series:

Killer Sudoku 10x10

3 primary works

Book 5

Cover of Killer Sudoku 10x10 Puzzles - Easy 200 vol. 5

Book 7

Cover of Killer Sudoku 10x10 Puzzles - Hard 200 vol. 7

Book 8

Cover of Killer Sudoku 10x10 Puzzles - Expert 200 vol. 8