| 1 | 2 | 3 | 4 |
| 5 | 6 | 7 | 8 |
| 9 | 10 | 11 | 12 |
| 13 | 14 | 15 |
| Today`s Puzzles: | Numbers | Creature Size (Adult Kg) |
| 0 | |
|
StepSolve Slow |
| StepSolve Fast | |
| Examples to solve | |
| 1 Pair Swapped 13 15 14 |
2 Pairs Swapped 10 9 12 11 |
| 3 Pairs Swapped 2 1 4 3 6 5 |
4 Pairs Swapped 6 5 8 7 10 9 12 11 |