Series:

Killer Sudoku and His Friends

29 primary works

Book 34

Cover of Logical book. Killer sudoku. Chain puzzles. Easy levels.

Book 35

Cover of Logical book. Killer sudoku. Chain puzzles. Medium levels.

Book 36

Cover of Logical book. Killer sudoku. Chain puzzles. Hard levels.

Book 37

Cover of Logical book. Killer sudoku. Chain puzzles. Extreme levels.

Book 38

Cover of Logical book. Killer sudoku. Chain puzzles. Easy - medium levels.

Book 39

Cover of Logical book. Killer sudoku. Chain puzzles. Medium - hard levels.

Book 40

Cover of Logical book. Killer sudoku. Chain puzzles. Hard - extreme levels.

Book 47

Cover of Killer sudoku X diagonal. Numbricks puzzles

Book 50

Cover of Killer sudoku Anti knight. Hitori puzzles