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| Pentominos home · Puzzle 5x9 · Solution 1231 and related solutions | ||||
| 1231 | | 1138 11 | | Ry:PTVW |
| 1231 | | 1158 12 | | Rx:TV |
| 1231 | | 1169 16 | | Rx:PTVW |
| 1231 | | 1232 14 | | Ra:FUY |
| 1231 | | 1233 6 | | Ex:FPU|NPU |
| 1231 | | 1238 18 | | Ry:FLUY |
| 1231 | | 1249 16 | | Rx:PW |
| 1231 | | 1282 12 | | T2:PTVW |
| 1231 | | 1983 16 | | Rx:FLUY |
| 1231 | | 2373 16 | | T2:FLUY |
| 1231 | | 2557 17 | | Ar:FLY |
| 1231 | | 3536 10 | | T3:IPTVW |