The Times Killer Su Doku Book 21: 200 Lethal Su Doku Puzzles (the Times Su Doku)
Challenge your logic with 200 Killer Su Doku puzzles from The Times. Features mathematical arithmetic challenges beyond traditional Su Doku, with Moderate to Deadly difficulty levels for serious puzzle enthusiasts.

Description
Challenge your logic with 200 Killer Su Doku puzzles from The Times. Features mathematical arithmetic challenges beyond traditional Su Doku, with Moderate to Deadly difficulty levels for serious puzzle enthusiasts.











