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

这个数独谜题有 41 个步骤，它使用 Hidden Single, Locked Candidates Type 1 (Pointing), Naked Triple, Naked Pair, Locked Candidates Type 2 (Claiming), Empty Rectangle, Naked Single, Uniqueness Test 4, undefined, Discontinuous Nice Loop, Hidden Triple, Uniqueness Test 1, Jellyfish, Turbot Fish, Give Up 技术解决。

Naked Single 解释
Hidden Single 解释
Locked Candidates 解释
Locked Candidates 解释
尝试解决

解决步骤：

  1. 排 1 / 柱子 4 → 8 (Hidden Single)
  2. 排 1 / 柱子 5 → 6 (Hidden Single)
  3. 排 3 / 柱子 8 → 6 (Hidden Single)
  4. 排 7 / 柱子 9 → 7 (Hidden Single)
  5. Locked Candidates Type 1 (Pointing): 4 in b1 => r2c7<>4
  6. Locked Candidates Type 1 (Pointing): 3 in b2 => r2c7<>3
  7. Locked Candidates Type 1 (Pointing): 2 in b3 => r47c7<>2
  8. Locked Candidates Type 1 (Pointing): 8 in b6 => r6c3<>8
  9. Naked Triple: 1,4,5 in r5c245 => r5c139<>1, r5c9<>4
  10. Locked Candidates Type 1 (Pointing): 4 in b6 => r4c4<>4
  11. Naked Pair: 2,8 in r58c1 => r4c1<>2
  12. Naked Triple: 2,4,8 in r8c139 => r8c46<>2, r8c4<>4, r8c6<>8
  13. Locked Candidates Type 2 (Claiming): 8 in r8 => r9c3<>8
  14. Empty Rectangle: 1 in b3 (r14c1) => r4c7<>1
  15. 排 4 / 柱子 7 → 4 (Naked Single)
  16. Uniqueness Test 4: 2/8 in r5c13,r8c13 => r58c3<>2
  17. X-Wing: 2 r58 c19 => r4c9<>2
  18. XY-Chain: 5 5- r4c8 -2- r5c9 -3- r5c3 -8- r8c3 -4- r7c2 -1- r5c2 -5 => r4c2<>5
  19. Discontinuous Nice Loop: 1 r4c3 -1- r2c3 -4- r8c3 -8- r8c1 -2- r5c1 =2= r4c3 => r4c3<>1
  20. XY-Chain: 2 2- r4c3 -6- r4c9 -1- r4c1 -9- r1c1 -1- r2c3 -4- r8c3 -8- r5c3 -3- r5c9 -2 => r4c8,r5c1<>2
  21. 排 4 / 柱子 8 → 5 (Naked Single)
  22. 排 5 / 柱子 1 → 8 (Naked Single)
  23. 排 5 / 柱子 3 → 3 (Naked Single)
  24. 排 8 / 柱子 1 → 2 (Naked Single)
  25. 排 5 / 柱子 9 → 2 (Naked Single)
  26. 排 8 / 柱子 9 → 4 (Naked Single)
  27. 排 8 / 柱子 3 → 8 (Naked Single)
  28. 排 4 / 柱子 3 → 2 (Hidden Single)
  29. 排 1 / 柱子 8 → 4 (Hidden Single)
  30. Hidden Triple: 5,7,9 in r6c246 => r6c246<>1, r6c2<>6
  31. Naked Pair: 5,9 in r68c6 => r2c6<>5
  32. Naked Pair: 1,2 in r2c6,r3c4 => r2c45<>1, r2c4<>2
  33. Uniqueness Test 1: 5/9 in r6c46,r8c46 => r6c4<>5, r6c4<>9
  34. 排 6 / 柱子 4 → 7 (Naked Single)
  35. 排 4 / 柱子 2 → 7 (Hidden Single)
  36. 排 4 / 柱子 9 → 6 (Hidden Single)
  37. 排 9 / 柱子 2 → 6 (Hidden Single)
  38. 排 6 / 柱子 3 → 6 (Hidden Single)
  39. Jellyfish: 1 r1346 c1479 => r2c7,r59c4<>1
  40. Turbot Fish: 1 r5c5 =1= r5c2 -1- r7c2 =1= r9c3 => r9c5<>1
  41. Give Up: Don't know how to proceed!
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