Analysis and Copyright : ISHINO Keiichiro (2005).
| Piece# | Shape | 8×8 | 7×7 | 6×6 | Remark | |||
|---|---|---|---|---|---|---|---|---|
| × | Sols | × | Sols | × | Sols | |||
| 1 | OOOO |
16 | 19 | 12 | 1 | 8 | 63 | |
| 2 | OOO O.. |
16 | 17,898 | 12 | 3,072 | 8 | 10,884 | |
| 3 | OOO .O. |
16 | 15 | 11 | 340 | 8 | 30 | |
| 4 | OO OO |
16 | 1 | 9 | 459 | 9 | 1 | |
| 5 | OO. .OO |
14 | 2,149 | 9 | 223,395 | 8 | 1 | |