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

这个数独谜题有 77 个步骤，它使用 Hidden Single, Locked Candidates Type 1 (Pointing), undefined, Hidden Rectangle, Finned Swordfish, Discontinuous Nice Loop, Grouped Discontinuous Nice Loop, Sashimi Swordfish, Skyscraper, Naked Single, Full House 技术解决。

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

解决步骤：

  1. 排 4 / 柱子 6 → 2 (Hidden Single)
  2. 排 6 / 柱子 3 → 2 (Hidden Single)
  3. 排 8 / 柱子 4 → 2 (Hidden Single)
  4. 排 7 / 柱子 8 → 2 (Hidden Single)
  5. 排 2 / 柱子 2 → 2 (Hidden Single)
  6. 排 8 / 柱子 7 → 8 (Hidden Single)
  7. 排 6 / 柱子 8 → 8 (Hidden Single)
  8. 排 2 / 柱子 1 → 8 (Hidden Single)
  9. 排 4 / 柱子 2 → 8 (Hidden Single)
  10. Locked Candidates Type 1 (Pointing): 5 in b5 => r5c23<>5
  11. 排 4 / 柱子 3 → 5 (Hidden Single)
  12. 排 4 / 柱子 1 → 9 (Hidden Single)
  13. 排 4 / 柱子 7 → 7 (Hidden Single)
  14. Locked Candidates Type 1 (Pointing): 9 in b9 => r3c9<>9
  15. X-Wing: 1 r48 c59 => r2c59<>1
  16. Locked Candidates Type 1 (Pointing): 1 in b2 => r1c8<>1
  17. Hidden Rectangle: 4/5 in r2c79,r6c79 => r2c9<>4
  18. Sashimi X-Wing: 6 c38 r59 fr7c3 fr8c3 => r9c2<>6
  19. Finned Swordfish: 6 c348 r579 fr8c3 => r7c2<>6
  20. Discontinuous Nice Loop: 4 r2c7 -4- r2c5 =4= r8c5 =1= r8c9 -1- r9c7 =1= r2c7 => r2c7<>4
  21. Discontinuous Nice Loop: 4 r7c2 -4- r7c7 -3- r9c7 =3= r9c2 =5= r7c2 => r7c2<>4
  22. Grouped Discontinuous Nice Loop: 4 r5c1 -4- r8c1 -6- r78c3 =6= r5c3 =7= r5c1 => r5c1<>4
  23. Grouped Discontinuous Nice Loop: 4 r7c9 -4- r3c9 -3- r2c9 -5- r2c7 =5= r6c7 =4= r79c7 -4- r7c9 => r7c9<>4
  24. Sashimi Swordfish: 4 c159 r368 fr2c5 => r3c6<>4
  25. Grouped Discontinuous Nice Loop: 4 r8c9 -4- r3c9 -3- r2c9 -5- r2c7 =5= r6c7 =4= r79c7 -4- r8c9 => r8c9<>4
  26. Almost Locked Set XY-Wing: A=r2c35 {347}, B=r3c469 {3478}, C=r123c8,r2c79 {134579}, X,Y=3,4, Z=7 => r3c1<>7
  27. 排 5 / 柱子 1 → 7 (Hidden Single)
  28. Skyscraper: 3 in r2c5,r3c1 (connected by r6c15) => r2c3,r3c4<>3
  29. 排 3 / 柱子 4 → 8 (Naked Single)
  30. 排 3 / 柱子 6 → 7 (Naked Single)
  31. 排 7 / 柱子 6 → 8 (Hidden Single)
  32. Hidden Rectangle: 4/7 in r1c38,r2c38 => r1c8<>4
  33. XY-Chain: 1 1- r1c6 -4- r2c5 -3- r6c5 -6- r4c5 -1 => r5c6<>1
  34. 排 5 / 柱子 6 → 5 (Naked Single)
  35. XYZ-Wing: 1/3/4 in r79c7,r9c6 => r9c8<>4
  36. Locked Candidates Type 1 (Pointing): 4 in b9 => r6c7<>4
  37. 排 6 / 柱子 7 → 5 (Naked Single)
  38. 排 2 / 柱子 9 → 5 (Hidden Single)
  39. 2-String Kite: 3 in r3c9,r9c2 (connected by r7c9,r9c7) => r3c2<>3
  40. Sashimi Swordfish: 3 r269 c257 fr6c1 => r5c2<>3
  41. W-Wing: 4/6 in r5c2,r8c1 connected by 6 in r3c12 => r6c1,r9c2<>4
  42. 排 6 / 柱子 9 → 4 (Hidden Single)
  43. 排 3 / 柱子 9 → 3 (Naked Single)
  44. 排 2 / 柱子 7 → 1 (Naked Single)
  45. 排 2 / 柱子 5 → 3 (Hidden Single)
  46. 排 1 / 柱子 4 → 1 (Naked Single)
  47. 排 1 / 柱子 6 → 4 (Full House)
  48. 排 9 / 柱子 6 → 1 (Full House)
  49. 排 6 / 柱子 5 → 6 (Naked Single)
  50. 排 6 / 柱子 1 → 3 (Full House)
  51. 排 9 / 柱子 8 → 6 (Naked Single)
  52. 排 4 / 柱子 5 → 1 (Naked Single)
  53. 排 5 / 柱子 4 → 3 (Full House)
  54. 排 8 / 柱子 5 → 4 (Full House)
  55. 排 4 / 柱子 9 → 6 (Full House)
  56. 排 5 / 柱子 8 → 1 (Full House)
  57. 排 7 / 柱子 9 → 9 (Naked Single)
  58. 排 8 / 柱子 9 → 1 (Full House)
  59. 排 9 / 柱子 4 → 5 (Naked Single)
  60. 排 7 / 柱子 4 → 6 (Full House)
  61. 排 8 / 柱子 1 → 6 (Naked Single)
  62. 排 3 / 柱子 1 → 4 (Full House)
  63. 排 8 / 柱子 3 → 9 (Full House)
  64. 排 9 / 柱子 2 → 3 (Naked Single)
  65. 排 9 / 柱子 7 → 4 (Full House)
  66. 排 7 / 柱子 7 → 3 (Full House)
  67. 排 2 / 柱子 3 → 7 (Naked Single)
  68. 排 2 / 柱子 8 → 4 (Full House)
  69. 排 3 / 柱子 8 → 9 (Naked Single)
  70. 排 1 / 柱子 8 → 7 (Full House)
  71. 排 3 / 柱子 2 → 6 (Full House)
  72. 排 1 / 柱子 2 → 9 (Naked Single)
  73. 排 1 / 柱子 3 → 3 (Full House)
  74. 排 7 / 柱子 2 → 5 (Naked Single)
  75. 排 7 / 柱子 3 → 4 (Full House)
  76. 排 5 / 柱子 2 → 4 (Full House)
  77. 排 5 / 柱子 3 → 6 (Full House)
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