AmazonFirst Sudoku Challenge: 4x4 Sudoku (Shidoku) Puzzles for Ages 4–7 | Easy Logic Games for Early Learners with Instructions | 8.5X11 | 4 Puzzles Per Page | 100 Pages | With Solutions
First Sudoku Challenge: 4x4 Sudoku (Shidoku) Puzzles for Ages 4–7 | Easy Logic Games for Early Learners with Instructions | 8.5X11 | 4 Puzzles Per Page | 100 Pages | With Solutions