7 7
(0,1) (2,3) (4,5) 
(0,2) (1,4) (3,6) 
(1,5) (0,6) (2,4) 
(3,5) (0,4) (1,6) 
(3,4) (5,6) (1,2) 
(4,6) (2,5) (0,3) 
(2,6) (1,3) (0,5) 
nodes: 2133   cpu: 15819
0: F F M M B L L  changes: 1
1: F M F L L B M  changes: 1
2: M F L B L M F  changes: 1
3: M L B F F L M  changes: 1
4: L M L M F F E  changes: 0
5: L B F F M M L  changes: 1
6: B L M L M F F  changes: 1
total boat changes: 6
max imbalance: 0