Pocket Sudoku 1-Per-Page: 100 Single-Page Medium Puzzles in True Trim: 4 x 6 Edition - 1 Puzzle Per Page Maximum Grid Size at Portability
Pocket Sudoku 1-Per-Page: 100 Single-Page Medium Puzzles in True Trim: 4 x 6 Edition - 1 Puzzle Per Page Maximum Grid Size at Portability