# Minimal valid quadrant used by the tests. Mostly open, so the Tatami share is high.
+---+---+---+---+---+---+---+---+
| S   S   S | .   .   A   .   .
+   +   +   +   +   +   +   +   +
| S   S   S   .   ?   .   1   .
+   +   +   +   +   +   +   +   +
| S   S   S | A   .   .   .   .
+---+   +---+   +   +   +   +   +
| .   .   .   .   1   .   F   .
+   +   +   +   +   +   +   +   +
| .   P   .   .   .   .   .   .
+   +   +   +   +   +   +   +   +
| .   .   K   .   .   .   .   .
+   +   +   +   +   +   +---+   +
| .   .   .   .   .   . | D   D
+   +   +   +   +   +   +   +   +
| .   .   .   .   .   . | D   D
+   +   +   +   +   +   +   +   +