Which cage totals have only one possible combination?

Forced cage combinations include: 2-cell cages of 3 (must be 1,2), 4 (1,3), 16 (7,9), 17 (8,9). 3-cell cages of 6 (1,2,3), 7 (1,2,4), 23 (6,8,9), 24 (7,8,9). 4-cell cage of 10 (1,2,3,4).

哪些笼区和只有一种可能组合？

最后更新 2026年6月11日

强制笼是总和只能以一种方式使用唯一数字实现的笼。它们是任何杀手数独谜题中首先要识别的东西，因为它们无需计算就能提供免费的候选数信息。

2格强制笼

Cage Sum	Only Combination	Why
3	{1, 2}	Minimum possible sum
4	{1, 3}	{2,2} repeats - Invalid
16	{7, 9}	{8,8} repeats - Invalid
17	{8, 9}	Maximum possible sum

3格强制笼

Cage Sum	Only Combination
6	{1, 2, 3}
7	{1, 2, 4}
23	{6, 8, 9}
24	{7, 8, 9}

4格强制笼

Cage Sum	Only Combination
10	{1, 2, 3, 4}

如何使用强制笼

When you identify a forced cage, immediately write the combination candidates for each cell. A 2-cell {1,2} cage: both cells get candidates {1,2}. This pair also forms a naked pair within its unit - Remove 1 and 2 from all other cells in the shared row, column, or box. Forced cages give you candidate information and naked pairs simultaneously.

内化这个最快的方法是在棋盘上—— 在线玩杀手数独并在实时谜题上应用它。