8 6
(0,1) (2,3) (4,5) 
(0,2) (1,4) (3,5) 
(0,4) (1,3) (2,5) 
(0,3) (2,6) (5,7) 
(3,6) (0,5) (2,7) 
(0,6) (1,2) (4,7) 
(1,6) (0,7) (2,4) 
(1,7) (3,4) (5,6) 
(3,7) (4,6) (1,5) 
(6,7) 
nodes: 8233   cpu: 60141
0: F F F F M F M E E E  changes: 0
1: F M M B B M F F L E  changes: 1
2: M F L M L M L E E E  changes: 0
3: M L M F F B B M F E  changes: 1
4: L M F B B L L M M E  changes: 1
5: L L L L M B B L L E  changes: 1
6: B B B M F F F L M F  changes: 1
7: B B B L L L M F F F  changes: 1
total boat changes: 6
max imbalance: 4