解决方案 數獨專家 #2253862197441

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

这个数独谜题有 73 个步骤，它使用 Naked Single, Full House, Hidden Single, Locked Candidates Type 1 (Pointing), Locked Candidates Type 2 (Claiming), Naked Triple, Hidden Pair, undefined, AIC, Locked Pair, Continuous Nice Loop, Skyscraper, Sue de Coq 技术解决。

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

解决步骤：

  1. 排 7 / 柱子 5 → 8 (Naked Single)
  2. 排 2 / 柱子 5 → 6 (Naked Single)
  3. 排 3 / 柱子 5 → 9 (Naked Single)
  4. 排 8 / 柱子 5 → 7 (Full House)
  5. 排 6 / 柱子 6 → 7 (Hidden Single)
  6. 排 1 / 柱子 9 → 7 (Hidden Single)
  7. 排 9 / 柱子 3 → 7 (Hidden Single)
  8. 排 2 / 柱子 9 → 5 (Hidden Single)
  9. Locked Candidates Type 1 (Pointing): 5 in b2 => r4c6<>5
  10. Locked Candidates Type 1 (Pointing): 3 in b3 => r49c8<>3
  11. Locked Candidates Type 1 (Pointing): 8 in b7 => r13c2<>8
  12. Locked Candidates Type 2 (Claiming): 4 in c9 => r79c8,r89c7<>4
  13. Naked Triple: 2,4,9 in r4c368 => r4c2<>2, r4c27<>4, r4c24<>9
  14. Hidden Pair: 3,6 in r4c2,r5c1 => r5c1<>1, r5c1<>2
  15. 2-String Kite: 4 in r1c7,r4c3 (connected by r4c8,r6c7) => r1c3<>4
  16. Locked Candidates Type 2 (Claiming): 4 in c3 => r6c2<>4
  17. XY-Wing: 1/9/4 in r7c4,r8c69 => r7c9<>4
  18. 排 7 / 柱子 9 → 2 (Naked Single)
  19. XY-Chain: 4 4- r3c2 -3- r4c2 -6- r5c1 -3- r5c9 -9- r8c9 -4 => r8c2<>4
  20. AIC: 4 4- r1c7 =4= r6c7 =5= r4c7 =3= r4c2 -3- r3c2 -4 => r1c12,r3c8<>4
  21. Locked Pair: 3,8 in r23c8 => r1c78,r9c8<>8
  22. Continuous Nice Loop: 1/2/4/9 8= r9c2 =2= r6c2 -2- r6c8 =2= r4c8 -2- r4c6 -9- r8c6 =9= r8c9 =4= r9c9 =3= r9c7 =8= r9c2 =2 => r9c27<>1, r46c3<>2, r9c2<>4, r5c6,r9c9<>9
  23. Skyscraper: 9 in r4c6,r5c9 (connected by r8c69) => r4c8,r5c4<>9
  24. X-Wing: 9 c48 r69 => r6c23<>9
  25. 排 1 / 柱子 2 → 9 (Hidden Single)
  26. Sue de Coq: r6c78 - {12459} (r6c23 - {124}, r4c7,r5c9 - {359}) => r5c7<>3
  27. 排 5 / 柱子 7 → 1 (Naked Single)
  28. XY-Chain: 8 8- r1c3 -1- r6c3 -4- r4c3 -9- r4c6 -2- r5c6 -8 => r1c6<>8
  29. 排 1 / 柱子 3 → 8 (Hidden Single)
  30. Finned X-Wing: 1 r18 c16 fr8c2 => r9c1<>1
  31. Hidden Pair: 1,9 in r9c48 => r9c4<>4
  32. 排 7 / 柱子 4 → 4 (Hidden Single)
  33. 排 3 / 柱子 2 → 4 (Hidden Single)
  34. 排 4 / 柱子 2 → 3 (Hidden Single)
  35. 排 4 / 柱子 7 → 5 (Naked Single)
  36. 排 5 / 柱子 1 → 6 (Naked Single)
  37. 排 4 / 柱子 4 → 6 (Naked Single)
  38. 排 6 / 柱子 7 → 4 (Naked Single)
  39. 排 5 / 柱子 4 → 8 (Naked Single)
  40. 排 1 / 柱子 7 → 6 (Naked Single)
  41. 排 4 / 柱子 8 → 2 (Naked Single)
  42. 排 6 / 柱子 3 → 1 (Naked Single)
  43. 排 2 / 柱子 4 → 1 (Naked Single)
  44. 排 5 / 柱子 6 → 2 (Naked Single)
  45. 排 1 / 柱子 8 → 4 (Naked Single)
  46. 排 8 / 柱子 7 → 8 (Naked Single)
  47. 排 9 / 柱子 7 → 3 (Full House)
  48. 排 4 / 柱子 6 → 9 (Naked Single)
  49. 排 4 / 柱子 3 → 4 (Full House)
  50. 排 6 / 柱子 4 → 5 (Full House)
  51. 排 9 / 柱子 4 → 9 (Full House)
  52. 排 8 / 柱子 6 → 1 (Full House)
  53. 排 6 / 柱子 8 → 9 (Naked Single)
  54. 排 6 / 柱子 2 → 2 (Full House)
  55. 排 5 / 柱子 3 → 9 (Full House)
  56. 排 2 / 柱子 3 → 2 (Full House)
  57. 排 5 / 柱子 9 → 3 (Full House)
  58. 排 1 / 柱子 6 → 5 (Naked Single)
  59. 排 1 / 柱子 1 → 1 (Full House)
  60. 排 3 / 柱子 6 → 8 (Full House)
  61. 排 9 / 柱子 9 → 4 (Naked Single)
  62. 排 8 / 柱子 9 → 9 (Full House)
  63. 排 9 / 柱子 8 → 1 (Naked Single)
  64. 排 7 / 柱子 8 → 6 (Full House)
  65. 排 7 / 柱子 2 → 1 (Full House)
  66. 排 8 / 柱子 1 → 4 (Naked Single)
  67. 排 8 / 柱子 2 → 6 (Full House)
  68. 排 9 / 柱子 2 → 8 (Full House)
  69. 排 9 / 柱子 1 → 2 (Full House)
  70. 排 2 / 柱子 1 → 3 (Naked Single)
  71. 排 2 / 柱子 8 → 8 (Full House)
  72. 排 3 / 柱子 8 → 3 (Full House)
  73. 排 3 / 柱子 1 → 5 (Full House)
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