+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
| S   S   S | .   1   ?   A   A | A   .   2   P   . | S   S   S |
+   +   +   +   +---+   +---+   +   +---+---+---+   +   +   +   +
| S   S   S   . | ?   .   A | P | 1 | ?   .   . | .   S   S   S |
+   +   +   +   +   +   +   +   +   +   +   +   +   +   +   +   +
| S   S   S | ? | .   ?   . | 2 | .   .   ?   .   . | S   S   S |
+---+   +---+   +   +   +   +   +   +   +   +   +   +---+   +---+
| .   .   .   .   F   .   A | .   A | A   .   A | .   ?   .   . |
+   +---+   +---+---+---+   +   +   +   +---+---+   +---+---+   +
| P | .   .   A | .   ?   . | A | ?   A   A   . | F   .   ? | 1 |
+   +   +   +   +   +   +---+   +   +---+---+   +   +   +   +   +
| 2 | .   ?   . | A | F   A   A   A   K   F   ? | .   ?   .   ? |
+   +   +   +   +   +   +   +---+---+---+   +   +   +   +   +   +
| . | ?   .   A   A | K | D   D   D   D   A | .   A   .   A | A |
+   +---+   +---+   +   +   +   +   +   +   +---+---+---+---+   +
| A   1   .   A   ?   A | D   D   D   D | A   A   .   2   P   A |
+---+---+---+   +---+   +   +   +   +   +   +---+   +---+---+---+
| A   P   2   .   A   A | D   D   D   D | A   ?   A   .   1   A |
+   +---+---+---+---+   +   +   +   +   +   +   +---+   +---+   +
| A | A   .   A   . | A   D   D   D   D | K | A   A   .   ? | . |
+   +   +   +   +   +   +---+---+---+   +   +   +   +   +   +   +
| ?   .   ?   . | ?   F   K   A   A   A   F | A | .   ?   . | 2 |
+   +   +   +   +   +---+---+   +   +---+   +   +   +   +   +   +
| 1 | ?   .   F | .   A   A   ? | A | .   ?   . | A   .   . | P |
+   +---+---+   +---+---+   +   +   +   +---+---+---+   +---+   +
| .   .   ?   . | A   .   A | A   . | A   .   F   .   .   .   . |
+---+   +---+   +   +   +   +   +   +   +   +   +   +---+   +---+
| S   S   S | .   .   ?   .   . | 2 | .   ?   . | ? | S   S   S |
+   +   +   +   +   +   +   +   +   +   +   +   +   +   +   +   +
| S   S   S   . | .   .   ? | 1 | P | A   .   ? | .   S   S   S |
+   +   +   +   +---+---+---+   +   +---+   +---+   +   +   +   +
| S   S   S | .   P   2   .   A | A   A   ?   1   . | S   S   S |
+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+