10 6
nodes: 143924   cpu: 3600083
0: F F F F B B M L M M M B B B L  changes: 2
1: F M M L L M F B B F F B B B M  changes: 1
2: M F L M L L L M F E E E E E E  changes: 0
3: M L M F F F B B B B B M L L E  changes: 1
4: L M F M F B B B M M M B M F F  changes: 1
5: L L L L M B B B B M F F B M E  changes: 1
6: B B B B M F F F F M M L M B L  changes: 2
7: B B B B B M B M M F F L L M F  changes: 2
8: B B B B B L M F M F F M F F E  changes: 1
9: B B B B B B L L M F F F F L M  changes: 1
total boat changes: 12