24點遊戲探祕系列2：唯一解的情況 (作者 ococo 2003/1/30)
有重複數字，而且有1個答案的問題有9個：
Question: 1 1 4 10
Question: 1 1 6 9
Question: 1 1 6 12
Question: 1 1 7 10
Question: 1 2 7 7
Question: 1 5 11 11
Question: 1 7 13 13
Question: 2 4 5 5
Question: 2 4 7 7
沒有重複數字，而且有1個答案的問題有31個：
Question: 1 2 7 12
Question: 1 2 8 10
Question: 1 2 9 11
Question: 1 3 4 6
Question: 1 3 9 10
Question: 1 4 5 6
Question: 1 4 6 10
Question: 1 4 7 11
Question: 1 5 8 13
Question: 1 6 11 13
Question: 2 3 5 12
Question: 2 3 8 13
Question: 2 3 9 12
Question: 2 4 11 12
Question: 2 5 7 8
Question: 2 7 8 9
Question: 3 4 7 8
Question: 3 5 7 13
Question: 4 5 7 10
Question: 4 7 8 11
Question: 4 9 10 11
Question: 4 10 11 13
Question: 5 6 7 9
Question: 5 7 9 10
Question: 5 7 10 11
Question: 6 8 9 10
Question: 6 8 10 11
Question: 6 9 11 12
Question: 6 9 11 13
Question: 6 11 12 13
Question: 7 10 11 13