6
8
9
3
7
2
4
9
9
1
1
6
3
8
5
2
4
8
5
7

这个数独谜题有 2 个步骤，它使用 Locked Candidates Type 1 (Pointing), Give Up 技术解决。

Locked Candidates 解释
尝试解决

解决步骤：

  1. Locked Candidates Type 1 (Pointing): 9 in b1 => r8c1<>9
  2. Give Up: Don't know how to proceed!
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