数独401020573050001642020040981145000296000452138832916754500160329010200465200030817解决方法：

4

1

5

2

2

1

4

5

7

3

6

4

2

9

8

1

1

4

5

8

3

2

4

5

2

9

1

6

2

9

6

1

3

8

7

5

4

5

1

2

1

6

2

3

3

2

9

4

6

5

8

1

7

这个数独谜题有 6 个步骤，它使用 Naked Single, Hidden Single, Locked Candidates Type 2 (Claiming), Discontinuous Nice Loop, Give Up 技术解决。

Naked Single 解释

Hidden Single 解释

Locked Candidates 解释

解决步骤：

排 9 / 柱子 4 → 5 (Naked Single)
排 3 / 柱子 6 → 5 (Hidden Single)
排 4 / 柱子 6 → 3 (Hidden Single)
Locked Candidates Type 2 (Claiming): 7 in c6 => r8c5<>7
Discontinuous Nice Loop: 8 r7c3 -8- r7c2 =8= r1c2 =9= r1c6 -9- r9c6 -4- r9c3 =4= r7c3 => r7c3<>8
Give Up: Don't know how to proceed!

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