8 6
(0,1) (2,3) (4,5) 
(0,2) (1,4) (3,5) 
(0,4) (2,5) (3,6) 
(2,4) (0,3) (6,7) 
(3,4) (1,7) (0,6) 
(1,3) (4,6) (0,7) 
(1,6) (2,7) (0,5) 
(2,6) (1,5) (4,7) 
(5,6) (3,7) (1,2) 
(5,7) 
nodes: 213325   cpu: 3600088
0: F F F M L L L E E E  changes: 0
1: F M B B M F F M L E  changes: 1
2: M F M F B B M F L E  changes: 1
3: M L L M F F B B M E  changes: 1
4: L M F F F M B L E E  changes: 1
5: L L M B B B L M F F  changes: 1
6: B B L L L M F F F E  changes: 1
7: B B B L M L M L M F  changes: 1
total boat changes: 7