Sudoku Samurai Extreme, Volume 5

Sudoku Samurai Extreme, Volume 1

Sudoku Puzzle 25X25, Volume 5

How to Solve a Rubik's Cube: The Easy Solution to The Rubik's Cube, A Beginner's Guide to Solving This Puzzle, Quick and Easily! (3x3 Cube) (Rubix) (2nd Edition)

Sudoku Samurai Extreme, Volume 2

Sudoku Samurai Puzzle, Volume 2

Sudoku Samurai Extreme, Volume 3

Brain Training And Brain Games for Memory Improvement: Concentration and Memory Improvement Strategies with Mind Mapping: Concentration and Memory Improvement Strategies with Mind Mapping

Chinese Chess: An Introduction to China's Ancient Game of Strategy

Killer Sudoku Puzzle, Volume 2

My Best Mathematical and Logic Puzzles

Sudoku Puzzle 25X25, Volume 3

Cracking Codes and Cryptograms For Dummies

Sudoku Samurai Puzzle, Volume 1

Better Chess for Average Players

Killer Sudoku Puzzle, Volume 3

Sudoku Puzzle 25X25, Volume 1

Killer Sudoku Puzzle, Volume 4

Shogi Japan's Game of Strategy