These books contain puzzles with a group size between 4 and 6, presenting far less of a challenge than traditional sudoku puzzles with a group size of 9. The puzzles are likely to be of most use in elementary and middle schools classes. The 'Variations on Junior Sudoku' books contain a several examples of the different puzzle types available in this catalogue, with puzzles at all of the available difficulty levels. The 'Variations' books are available either by level, i.e., all the puzzles in the book are the same level of difficulty (easy, difficult, challenging, etc) or with all levels in a single (but much larger) book. For editions that are available in print, the on-line information includes detailed step-by-step solutions for each puzzle, as well as other general information about how to solve puzzles and use these books in classes.
| Book Title | Vol | Puzzle Count | On-Line Info | Edition Availability | |||
| Paperback | |||||||
| Variations on Junior Sudoku | 1 | 930 | Solutions | $7.99 | eStore | ||
| Easy Sudoku Five | 1 | 190 | Solutions | $7.99 | eStore | ||
| Medium Sudoku Five | 1 | 190 | Solutions | $7.99 | eStore | ||
| Difficult Sudoku Five | 1 | 190 | Solutions | $7.99 | eStore | ||
| Easy Sudoku Six | 1 | 190 | Solutions | $7.99 | eStore | ||
| Medium Sudoku Six | 1 | 190 | Solutions | $7.99 | eStore | ||
| Difficult Sudoku Six | 1 | 190 | Solutions | $7.99 | eStore | ||