---------
seahorse, U-sequence, no halfstrip
1212321
[48 x 72] took 144542811 mSec to place max 251 final 0 (of 288) 12-ominoes
generateChecksums: no,  halfstripHalting: Yes
placementsTried: 645547908607  (4466136/second)
placementsPlaced: 80693488653  (558267/second)
                                                                                                                                                   
  +--------------------+--+--------------------+--+--------------------+--+--------------------+--+--------------------+--+--------------------+--+
  |                    |  |                    |  |                    |  |                    |  |                    |  |                    |  |
  +--+        +--+  +--+  +--+        +--+  +--+  +--+        +--+  +--+  +--+        +--+  +--+  +--+        +--+  +--+  +--+        +--+  +--+  |
  |  |        |  |  |        |        |  |  |        |        |  |  |        |        |  |  |        |        |  |  |        |        |  |  |     |
  |  +--+  +--+  +--+        +--+  +--+  +--+        +--+  +--+  +--+        +--+  +--+  +--+        +--+  +--+  +--+        +--+  +--+  +--+     |
  |     |  |                    |  |                    |  |                    |  |                    |  |                    |  |     |        |
  |  +--+--+--------------+--+--+--+-----------------+--+--+-----------------+--+--+-----------------+--+--+-----------------+--+--+     +--+     |
  |  |                    |  |  |                    |  |                    |  |                    |  |                    |  |        |  |     |
  |  +--+        +--+  +--+  |  +--+        +--+  +--+  +--+        +--+  +--+  +--+        +--+  +--+  +--+        +--+  +--+  +--+     |  +--+  |
  |     |        |  |  |     |     |        |  |  |     |  |        |  |  |        |        |  |  |        |        |  |  |        |     |     |  |
  |     +--+  +--+  +--+     |     +--+  +--+  +--+     |  +--+  +--+  +--+        +--+  +--+  +--+        +--+  +--+  +--+        +--+  |  +--+  |
  |        |  |     |        |        |  |     |        |     |  |                    |  |                    |  |                    |  |  |     |
  |     +--+--+     +--+     |     +--+--+     +--+     |  +--+--+--------------+--+--+--+--------------+--+--+--+--------------+--+--+  |  +--+  |
  |     |  |        |  |     |     |  |        |  |     |  |                    |  |                    |  |                    |  |     |     |  |
  |  +--+  +--+     |  +--+  |  +--+  +--+     |  +--+  |  +--+        +--+  +--+  +--+        +--+  +--+  +--+        +--+  +--+  +--+  |     +--+
  |  |     |  |     |     |  |  |     |  |     |     |  |     |        |  |  |        |        |  |  |        |        |  |  |        |  |        |
  +--+     |  +--+  |  +--+  |  +--+  |  +--+  |  +--+  |     +--+  +--+  +--+        +--+  +--+  +--+        +--+  +--+  +--+        +--+     +--+
  |        |     |  |  |     |     |  |     |  |  |     |        |  |                    |  |                    |  |                    |     |  |
  +--+     |  +--+  |  +--+  |  +--+  |  +--+  |  +--+  |     +--+--+--------------------+--+--------------------+--+--------------------+  +--+  |
  |  |     |  |     |     |  |  |     |  |     |     |  |     |  |  |                    |  |                    |  |                    |  |     |
  |  +--+  |  +--+  |     +--+--+     |  +--+  |     +--+  +--+--+  +--+  +--+        +--+  +--+  +--+        +--+  +--+  +--+        +--+--+     |
  |     |  |     |  |        |        |     |  |        |  |  |        |  |  |        |        |  |  |        |        |  |  |        |  |        |
  |  +--+  |     +--+     +--+--+     |     +--+     +--+--+--+        +--+  +--+  +--+        +--+  +--+  +--+        +--+  +--+  +--+  +--+     |
  |  |     |        |     |     |     |        |     |     |                    |  |                    |  |                    |  |     |  |     |
  |  +--+  |     +--+  +--+     +--+  |     +--+  +--+  +--+-----------------+--+--+-----------------+--+--+-----------------+--+--+     |  +--+  |
  |     |  |     |  |  |           |  |     |  |  |     |                    |  |                    |  |                    |  |        |     |  |
  |     +--+  +--+  +--+           +--+  +--+  +--+     +--+        +--+  +--+  +--+        +--+  +--+  +--+        +--+  +--+  +--+     |  +--+  |
  |        |  |                       |  |                 |        |  |  |        |        |  |  |        |        |  |  |        |     |  |     |
  |        +--+                       +--+                 +--+  +--+  +--+        +--+  +--+  +--+        +--+  +--+  +--+        +--+  |  +--+  |
  |                                                           |  |                    |  |                    |  |                    |  |     |  |
  |                                                        +--+--+--------------+--+--+--+--------------+--+--+--+--------------+--+--+  |     +--+
  |                                                        |                    |  |                    |  |                    |  |     |        |
  |                                                        +--+        +--+  +--+  +--+        +--+  +--+  +--+        +--+  +--+  +--+  |     +--+
  |                                                           |        |  |  |        |        |  |  |        |        |  |  |        |  |     |  |
  |                                                           +--+  +--+  +--+        +--+  +--+  +--+        +--+  +--+  +--+        +--+  +--+  |
  |                                                              |  |                    |  |                    |  |                    |  |     |
  |                                                              +--+-----------------+--+--+-----------------+--+--+-----------------+--+--+     |
  |                                                              |                    |  |                    |  |                    |  |        |
  |                                                              +--+        +--+  +--+  +--+        +--+  +--+  +--+        +--+  +--+  +--+     |
  |                                                                 |        |  |  |        |        |  |  |        |        |  |  |     |  |     |
  |                                                                 +--+  +--+  +--+        +--+  +--+  +--+        +--+  +--+  +--+     |  +--+  |
  |                                                                    |  |                    |  |                    |  |     |        |     |  |
  |                                                                    +--+--------------------+--+--------------------+--+     +--+     |  +--+  |
  |                                                                    |  |                    |  |                    |        |  |     |  |     |
  |                                                                 +--+  +--+  +--+        +--+  +--+  +--+        +--+--+     |  +--+  |  +--+  |
  |                                                                 |        |  |  |        |        |  |  |        |  |  |     |     |  |     |  |
  |                                                              +--+        +--+  +--+  +--+        +--+  +--+  +--+  |  +--+  |  +--+  |     +--+
  |                                                              |                    |  |                    |  |     |     |  |  |     |        |
  |                                                              +--+--+--------------+--+--+--+--------------+--+--+  |  +--+  |  +--+  |     +--+
  |                                                                 |  |                    |  |                    |  |  |     |     |  |     |  |
  |                                                        +--+  +--+  +--+        +--+  +--+  +--+        +--+  +--+  |  +--+  |     +--+  +--+  |
  |                                                        |  |  |        |        |  |  |        |        |  |  |     |     |  |        |  |     |
  |                                                     +--+  +--+        +--+  +--+  +--+        +--+  +--+  +--+     |     +--+     +--+--+     |
  |                                                     |                    |  |                    |  |     |        |        |     |  |        |
  |                                                     +-----+--------------+--+--+--+--------------+--+--+  +--+     |     +--+  +--+  +--+     |
  |                                                           |                    |  |                    |  |  |     |     |  |  |     |  |     |
  |                                                           +--+  +--+        +--+  +--+  +--+        +--+  |  +--+  |  +--+  +--+     |  +--+  |
  |                                                              |  |  |        |  |     |  |  |        |     |     |  |  |     |        |     |  |
  |                                                              +--+  +--+  +--+  |     +--+  +--+  +--+     |     +--+--+     +--+     |  +--+  |
  |                                                                       |  |     |        |     |  |        |        |        |  |     |  |     |
  |     +--+        +--+                                +--+              +--+     |     +--+     +--+--+     |     +--+--+     |  +--+  |  +--+  |
  |     |  |        |  |                                |  |              |        |     |  |        |  |     |     |  |  |     |     |  |     |  |
  |  +--+  |     +--+  |                    +--+        |  +--+        +--+--+     |  +--+  |     +--+  +--+  |  +--+  |  +--+  |  +--+  |     +--+
  |  |     |     |     |                    |  |        |     |        |  |  |     |  |     |     |  |     |  |  |     |     |  |  |     |        |
  +--+     +--+--+     |                 +--+  |        |  +--+     +--+  |  +--+  |  +--+  |  +--+  |     +--+  +--+  |  +--+  |  +--+  |     +--+
  |        |  |        |                 |     |        |  |        |     |     |  |     |  |  |     |        |     |  |  |     |     |  |     |  |
  +--+     |  +--+     |              +--+     +--+     |  +--+  +--+     |  +--+  |  +--+  |  +--+  |     +--+  +--+  |  +--+  |     +--+  +--+  |
  |  |     |     |     |              |        |  |     |     |  |        |  |     |  |     |     |  |     |  |  |     |     |  |        |  |     |
  |  +--+  |  +--+--+  |           +--+--+     |  +--+  |     +--+--+     |  +--+  +--+     |  +--+  |  +--+  +--+     |     +--+     +--+--+     |
  |     |  |  |     |  |           |  |  |     |     |  |        |  |     |     |  |        |  |     |  |     |        |        |     |  |        |
  |  +--+  |  +--+--+  |  +--+  +--+  |  +--+  |     +--+     +--+  +--+  |     +--+--+     +--+     |  +--+  +--+     |     +--+  +--+  +--+     |
  |  |     |     |     |  |  |  |     |     |  |        |     |  |     |  |        |  |     |        |     |  |  |     |     |  |  |     |  |     |
  |  +--+  |     +--+  +--+  +--+     |  +--+  |     +--+  +--+  +--+--+  |     +--+  +--+  +--+     |  +--+  |  +--+  |  +--+  +--+     |  +--+  |
  |     |  |        |  |     |        |  |     |     |  |  |     |  |     |     |  |     |  |  |     |  |     |     |  |  |     |        |     |  |
  |     +--+     +--+--+     +--+     |  +--+  |  +--+  +--+     |  +--+  |  +--+  |     +--+  +--+  +--+     |     +--+--+     +--+     |  +--+  |
  |        |     |  |        |  |     |     |  |  |     |        |     |  |  |     |        |     |  |        |        |        |  |     |  |     |
  |     +--+  +--+  +--+     |  +--+  |     +--+  +--+  +--+     |     +--+--+     |     +--+     +--+--+     |     +--+--+     |  +--+  |  +--+  |
  |     |  |  |     |  |     |     |  |        |     |  |  |     |        |        |     |  |        |  |     |     |  |  |     |     |  |     |  |
  |  +--+  +--+     |  +--+  |  +--+  |     +--+  +--+  |  +--+  |     +--+--+     |  +--+  |     +--+  +--+  |  +--+  |  +--+  |  +--+  |     +--+
  |  |     |        |     |  |  |     |     |  |  |     |     |  |     |  |  |     |  |     |     |  |     |  |  |     |     |  |  |     |        |
  +--+     +--+     |  +--+  |  +--+  |  +--+  +--+     |  +--+  |  +--+  |  +--+  |  +--+  |  +--+  |     +--+  +--+  |  +--+  |  +--+  |     +--+
  |        |  |     |  |     |     |  |  |     |        |  |     |  |     |     |  |     |  |  |     |        |     |  |  |     |     |  |     |  |
  +--+     |  +--+  |  +--+  |     +--+--+     +--+     |  +--+  |  +--+  |  +--+  |  +--+  |  +--+  |     +--+  +--+  |  +--+  |     +--+  +--+  |
  |  |     |     |  |     |  |        |        |  |     |     |  |     |  |  |     |  |     |     |  |     |  |  |     |     |  |        |  |     |
  |  +--+  |  +--+  |     +--+     +--+--+     |  +--+  |     +--+  +--+  |  +--+  +--+     |  +--+  |  +--+  +--+     |     +--+     +--+--+     |
  |     |  |  |     |        |     |  |  |     |     |  |        |  |     |     |  |        |  |     |  |     |        |        |     |  |        |
  |  +--+  |  +--+  |     +--+  +--+  |  +--+  |     +--+     +--+--+     |     +--+--+     +--+     |  +--+  +--+     |     +--+  +--+  +--+     |
  |  |     |     |  |     |  |  |     |     |  |        |     |  |        |        |  |     |        |     |  |  |     |     |  |  |     |  |     |
  |  +--+  |     +--+  +--+  +--+     |  +--+  |     +--+  +--+  +--+     |     +--+  +--+  +--+     |  +--+  |  +--+  |  +--+  +--+     |  +--+  |
  |     |  |        |  |     |        |  |     |     |  |  |     |  |     |     |  |     |  |  |     |  |     |     |  |  |     |        |     |  |
  |     +--+     +--+--+     +--+     |  +--+  |  +--+  +--+     |  +--+  |  +--+  |     +--+  +--+  +--+     |     +--+--+     +--+     |  +--+  |
  |        |     |  |        |  |     |     |  |  |     |        |     |  |  |     |        |     |  |        |        |        |  |     |  |     |
  |     +--+  +--+  +--+     |  +--+  |     +--+  +--+  +--+     |     +--+--+     |     +--+     +--+--+     |     +--+--+     |  +--+  |  +--+  |
  |     |  |  |     |  |     |     |  |        |     |  |  |     |        |        |     |  |        |  |     |     |  |  |     |     |  |     |  |
  |  +--+  +--+     |  +--+  |  +--+  |     +--+  +--+  |  +--+  |     +--+--+     |  +--+  |     +--+  +--+  |  +--+  |  +--+  |  +--+  |     +--+
  |  |     |        |     |  |  |     |     |  |  |     |     |  |     |  |  |     |  |     |     |  |     |  |  |     |     |  |  |     |        |
  +--+     +--+     |  +--+  |  +--+  |  +--+  +--+     |  +--+  |  +--+  |  +--+  |  +--+  |  +--+  |     +--+  +--+  |  +--+  |  +--+  |     +--+
  |        |  |     |  |     |     |  |  |     |        |  |     |  |     |     |  |     |  |  |     |        |     |  |  |     |     |  |     |  |
  +--+     |  +--+  |  +--+  |     +--+--+     +--+     |  +--+  |  +--+  |  +--+  |  +--+  |  +--+  |     +--+  +--+  |  +--+  |     +--+  +--+  |
  |  |     |     |  |     |  |        |        |  |     |     |  |     |  |  |     |  |     |     |  |     |  |  |     |     |  |        |  |     |
  |  +--+  |  +--+  |     +--+     +--+--+     |  +--+  |     +--+  +--+  |  +--+  +--+     |  +--+  |  +--+  +--+     |     +--+     +--+--+     |
  |     |  |  |     |        |     |  |  |     |     |  |        |  |     |     |  |        |  |     |  |     |        |        |     |  |        |
  |  +--+  |  +--+  |     +--+  +--+  |  +--+  |     +--+     +--+--+     |     +--+--+     +--+     |  +--+  +--+     |     +--+  +--+  +--+     |
  |  |     |     |  |     |  |  |     |     |  |        |     |  |        |        |  |     |        |     |  |  |     |     |  |  |     |  |     |
  |  +--+  |     +--+  +--+  +--+     |  +--+  |     +--+  +--+  +--+     |     +--+  +--+  +--+     |  +--+  |  +--+  |  +--+  +--+     |  +--+  |
  |     |  |        |  |     |        |  |     |     |  |  |        |     |     |        |  |  |     |  |     |     |  |  |     |        |     |  |
  |     +--+     +--+--+     +--+     |  +--+  |  +--+  +--+        +--+  |  +--+        +--+  +--+  +--+     |     +--+--+     +--+     |  +--+  |
  |        |     |  |        |  |     |     |  |  |                    |  |  |                    |  |        |        |        |  |     |  |     |
  |     +--+  +--+  +--+     |  +--+  |     +--+  +--+--+--------------+--+--+--+-----------------+--+--+     |     +--+--+     |  +--+  |  +--+  |
  |     |  |  |     |  |     |     |  |        |     |  |                    |  |                    |  |     |     |  |  |     |     |  |     |  |
  |  +--+  +--+     |  +--+  |  +--+  |     +--+  +--+  +--+        +--+  +--+  +--+        +--+  +--+  +--+  |  +--+  |  +--+  |  +--+  |     +--+
  |  |     |        |     |  |  |     |     |  |  |        |        |  |  |        |        |  |  |        |  |  |     |     |  |  |     |        |
  +--+     +--+     |  +--+  |  +--+  |  +--+  +--+        +--+  +--+  +--+        +--+  +--+  +--+        +--+  +--+  |  +--+  |  +--+  |     +--+
  |        |  |     |  |     |     |  |  |                    |  |                    |  |                    |     |  |  |     |     |  |     |  |
  +--+     |  +--+  |  +--+  |     +--+--+--------------------+--+--------------------+--+--------------------+  +--+  |  +--+  |     +--+  +--+  |
  |  |     |     |  |     |  |        |  |                    |  |                    |  |                    |  |     |     |  |        |  |     |
  |  +--+  |  +--+  |     +--+     +--+  +--+  +--+        +--+  +--+  +--+        +--+  +--+  +--+        +--+--+     |     +--+     +--+--+     |
  |     |  |  |     |        |     |        |  |  |        |        |  |  |        |        |  |  |        |  |        |        |     |  |        |
  |  +--+  |  +--+  |     +--+  +--+        +--+  +--+  +--+        +--+  +--+  +--+        +--+  +--+  +--+  +--+     |     +--+  +--+  +--+     |
  |  |     |     |  |     |  |  |                    |  |                    |  |                    |  |     |  |     |     |  |  |     |  |     |
  |  +--+  |     +--+  +--+  +--+-----------------+--+--+-----------------+--+--+-----------------+--+--+     |  +--+  |  +--+  +--+     |  +--+  |
  |     |  |        |  |     |                    |  |                    |  |                    |  |        |     |  |  |     |        |     |  |
  |     +--+     +--+--+     +--+        +--+  +--+  +--+        +--+  +--+  +--+        +--+  +--+  +--+     |     +--+--+     +--+     |  +--+  |
  |        |     |  |        |  |        |  |  |        |        |  |  |        |        |  |  |        |     |        |        |  |     |  |     |
  |     +--+  +--+  +--+     |  +--+  +--+  +--+        +--+  +--+  +--+        +--+  +--+  +--+        +--+  |     +--+--+     |  +--+  |  +--+  |
  |     |  |  |     |  |     |     |  |                    |  |                    |  |                    |  |     |  |  |     |     |  |     |  |
  |  +--+  +--+     |  +--+  |  +--+--+--------------+--+--+--+--------------+--+--+--+--------------+--+--+  |  +--+  |  +--+  |  +--+  |     +--+
  |  |     |        |     |  |  |                    |  |                    |  |                    |  |     |  |     |     |  |  |     |        |
  +--+     +--+     |  +--+  |  +--+        +--+  +--+  +--+        +--+  +--+  +--+        +--+  +--+  +--+  |  +--+  |  +--+  |  +--+  |     +--+
  |        |  |     |  |     |     |        |  |  |        |        |  |  |        |        |  |  |        |  |     |  |  |     |     |  |     |  |
  +--+     |  +--+  |  +--+  |     +--+  +--+  +--+        +--+  +--+  +--+        +--+  +--+  +--+        +--+  +--+  |  +--+  |     +--+  +--+  |
  |  |     |     |  |     |  |        |  |                    |  |                    |  |                    |  |     |     |  |        |  |     |
  |  +--+  |  +--+  |     +--+     +--+--+-----------------+--+--+-----------------+--+--+-----------------+--+--+     |     +--+     +--+--+     |
  |     |  |  |     |        |     |  |                    |  |                    |  |                    |  |        |        |     |  |        |
  |  +--+  |  +--+  |     +--+  +--+  +--+        +--+  +--+  +--+        +--+  +--+  +--+        +--+  +--+  +--+     |     +--+  +--+  +--+     |
  |  |     |     |  |     |  |  |        |        |  |  |        |        |  |  |        |        |  |  |        |     |     |  |  |        |     |
  |  +--+  |     +--+  +--+  +--+        +--+  +--+  +--+        +--+  +--+  +--+        +--+  +--+  +--+        +--+  |  +--+  +--+        +--+  |
  |     |  |        |  |                    |  |                    |  |                    |  |                    |  |  |                    |  |
  |     +--+     +--+--+-----------------+--+--+-----------------+--+--+-----------------+--+--+-----------------+--+--+--+--------------+--+--+  |
  |        |     |  |                    |  |                    |  |                    |  |                    |  |                    |  |     |
  |     +--+  +--+  +--+        +--+  +--+  +--+        +--+  +--+  +--+        +--+  +--+  +--+        +--+  +--+  +--+        +--+  +--+  +--+  |
  |     |  |  |        |        |  |  |        |        |  |  |        |        |  |  |        |        |  |  |        |        |  |  |        |  |
  |  +--+  +--+        +--+  +--+  +--+        +--+  +--+  +--+        +--+  +--+  +--+        +--+  +--+  +--+        +--+  +--+  +--+        +--+
  |  |                    |  |                    |  |                    |  |                    |  |                    |  |                    |
  +--+--------------------+--+--------------------+--+--------------------+--+--------------------+--+--------------------+--+--------------------+
search->curCount = -1
--------------


stopped after 40 hours, but encouraging that it can solve three corners. But off, see all that halfstripping!