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

这个数独谜题有 79 个步骤，它使用 Locked Candidates Type 1 (Pointing), undefined, Discontinuous Nice Loop, Grouped Discontinuous Nice Loop, Hidden Pair, Empty Rectangle, Hidden Single, Naked Single, Full House, AIC, Naked Triple, Hidden Rectangle 技术解决。

Naked Single 解释
Hidden Single 解释
Hidden Pair 解释
Locked Candidates 解释
Full House 解释
尝试解决

解决步骤：

  1. Locked Candidates Type 1 (Pointing): 2 in b2 => r9c4<>2
  2. Locked Candidates Type 1 (Pointing): 2 in b4 => r7c3<>2
  3. Locked Candidates Type 1 (Pointing): 5 in b5 => r9c4<>5
  4. Locked Candidates Type 1 (Pointing): 6 in b7 => r3c1<>6
  5. 2-String Kite: 4 in r4c7,r7c3 (connected by r4c2,r5c3) => r7c7<>4
  6. Discontinuous Nice Loop: 1 r2c4 -1- r6c4 -5- r6c8 -2- r2c8 =2= r2c4 => r2c4<>1
  7. Discontinuous Nice Loop: 7 r2c5 -7- r2c3 -9- r6c3 =9= r6c6 =1= r6c4 -1- r3c4 =1= r2c5 => r2c5<>7
  8. Discontinuous Nice Loop: 5 r9c8 -5- r9c5 =5= r8c5 =1= r2c5 -1- r3c4 =1= r6c4 =5= r6c8 -5- r9c8 => r9c8<>5
  9. Grouped Discontinuous Nice Loop: 5 r3c1 -5- r789c1 =5= r7c3 =4= r5c3 -4- r4c2 -8- r5c1 =8= r3c1 => r3c1<>5
  10. Locked Candidates Type 1 (Pointing): 5 in b1 => r7c3<>5
  11. Hidden Pair: 5,6 in r13c3 => r13c3<>7, r1c3<>9
  12. Empty Rectangle: 7 in b9 (r27c3) => r2c8<>7
  13. XY-Chain: 1 1- r3c1 -8- r5c1 -9- r6c3 -2- r6c8 -5- r6c4 -1 => r3c4<>1
  14. 排 6 / 柱子 4 → 1 (Hidden Single)
  15. 排 6 / 柱子 6 → 9 (Naked Single)
  16. 排 6 / 柱子 3 → 2 (Naked Single)
  17. 排 6 / 柱子 8 → 5 (Full House)
  18. 排 2 / 柱子 5 → 1 (Hidden Single)
  19. 排 4 / 柱子 4 → 5 (Hidden Single)
  20. 排 5 / 柱子 7 → 2 (Hidden Single)
  21. Empty Rectangle: 3 in b8 (r4c67) => r8c7<>3
  22. AIC: 4 4- r1c8 =4= r1c9 =9= r1c2 -9- r2c3 =9= r5c3 =4= r5c9 -4- r4c7 =4= r9c7 -4 => r79c8<>4
  23. 排 1 / 柱子 8 → 4 (Hidden Single)
  24. X-Wing: 4 r49 c27 => r7c2<>4
  25. Discontinuous Nice Loop: 7 r3c2 -7- r2c3 -9- r5c3 =9= r5c1 =8= r3c1 =1= r3c2 => r3c2<>7
  26. Discontinuous Nice Loop: 5 r7c9 -5- r7c1 -1- r3c1 -8- r5c1 -9- r5c3 -4- r5c9 =4= r7c9 => r7c9<>5
  27. Locked Candidates Type 1 (Pointing): 5 in b9 => r3c7<>5
  28. Naked Triple: 1,3,8 in r3c127 => r3c489<>3, r3c48<>8
  29. XY-Wing: 3/4/8 in r34c7,r4c2 => r3c2<>8
  30. Hidden Rectangle: 2/7 in r2c48,r3c48 => r2c4<>7
  31. Discontinuous Nice Loop: 3 r7c7 -3- r3c7 -8- r3c1 =8= r5c1 -8- r4c2 -4- r4c7 -3- r7c7 => r7c7<>3
  32. XY-Wing: 1/5/8 in r37c1,r7c7 => r3c7<>8
  33. 排 3 / 柱子 7 → 3 (Naked Single)
  34. 排 3 / 柱子 2 → 1 (Naked Single)
  35. 排 4 / 柱子 7 → 4 (Naked Single)
  36. 排 5 / 柱子 9 → 3 (Full House)
  37. 排 3 / 柱子 1 → 8 (Naked Single)
  38. 排 4 / 柱子 2 → 8 (Naked Single)
  39. 排 4 / 柱子 6 → 3 (Full House)
  40. 排 5 / 柱子 1 → 9 (Naked Single)
  41. 排 5 / 柱子 3 → 4 (Full House)
  42. 排 7 / 柱子 3 → 7 (Naked Single)
  43. 排 2 / 柱子 3 → 9 (Naked Single)
  44. 排 7 / 柱子 2 → 2 (Naked Single)
  45. 排 7 / 柱子 9 → 4 (Naked Single)
  46. 排 8 / 柱子 2 → 9 (Naked Single)
  47. 排 2 / 柱子 9 → 7 (Naked Single)
  48. 排 8 / 柱子 7 → 5 (Naked Single)
  49. 排 9 / 柱子 2 → 4 (Naked Single)
  50. 排 2 / 柱子 2 → 3 (Naked Single)
  51. 排 1 / 柱子 2 → 7 (Full House)
  52. 排 3 / 柱子 8 → 2 (Naked Single)
  53. 排 3 / 柱子 9 → 5 (Naked Single)
  54. 排 1 / 柱子 9 → 9 (Full House)
  55. 排 2 / 柱子 8 → 8 (Full House)
  56. 排 2 / 柱子 4 → 2 (Full House)
  57. 排 7 / 柱子 7 → 8 (Naked Single)
  58. 排 9 / 柱子 7 → 9 (Full House)
  59. 排 3 / 柱子 3 → 6 (Naked Single)
  60. 排 1 / 柱子 3 → 5 (Full House)
  61. 排 3 / 柱子 4 → 7 (Full House)
  62. 排 7 / 柱子 8 → 3 (Naked Single)
  63. 排 7 / 柱子 6 → 1 (Naked Single)
  64. 排 7 / 柱子 1 → 5 (Full House)
  65. 排 9 / 柱子 4 → 8 (Naked Single)
  66. 排 8 / 柱子 6 → 7 (Naked Single)
  67. 排 9 / 柱子 1 → 6 (Naked Single)
  68. 排 8 / 柱子 1 → 1 (Full House)
  69. 排 5 / 柱子 4 → 6 (Naked Single)
  70. 排 1 / 柱子 4 → 3 (Full House)
  71. 排 8 / 柱子 5 → 3 (Naked Single)
  72. 排 8 / 柱子 8 → 6 (Full House)
  73. 排 9 / 柱子 8 → 7 (Full House)
  74. 排 9 / 柱子 5 → 5 (Naked Single)
  75. 排 9 / 柱子 6 → 2 (Full House)
  76. 排 5 / 柱子 6 → 8 (Naked Single)
  77. 排 1 / 柱子 6 → 6 (Full House)
  78. 排 1 / 柱子 5 → 8 (Full House)
  79. 排 5 / 柱子 5 → 7 (Full House)
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