Hamilton-圈
G 7
G 8
G 9
G 10
G 11
完美匹配的交
M 1 ∩ M 3 = ∅
M 2 ∩ M 5 = ∅
M 3 ∩ M 6 = ∅
M 5 ∩ M 6 = ∅
M 1 ∩ M 2 = ∅
完美匹配的不交并
M 1 ∪ ˙ M 3
M 2 ∪ ˙ M 5
M 3 ∪ ˙ M 6
M 5 ∪ ˙ M 6
M 1 ∪ ˙ M 2