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

Questo puzzle di sudoku ha 72 passaggi e viene risolto utilizzando tecniche di Naked Single, Hidden Single, Locked Candidates Type 1 (Pointing), Full House, Naked Pair, Naked Triple, Hidden Pair, undefined.

Prova a risolvere

Passaggi della soluzione:

  1. Riga 1 / Colonna 6 → 2 (Naked Single)
  2. Riga 1 / Colonna 1 → 9 (Hidden Single)
  3. Riga 4 / Colonna 6 → 9 (Hidden Single)
  4. Riga 8 / Colonna 6 → 7 (Hidden Single)
  5. Riga 6 / Colonna 6 → 4 (Hidden Single)
  6. Locked Candidates Type 1 (Pointing): 1 in b2 => r56c5<>1
  7. Locked Candidates Type 1 (Pointing): 5 in b2 => r79c5<>5
  8. Locked Candidates Type 1 (Pointing): 4 in b3 => r3c123<>4
  9. Locked Candidates Type 1 (Pointing): 6 in b3 => r3c56<>6
  10. Riga 3 / Colonna 6 → 8 (Naked Single)
  11. Riga 2 / Colonna 6 → 6 (Full House)
  12. Riga 3 / Colonna 1 → 3 (Naked Single)
  13. Riga 2 / Colonna 4 → 3 (Naked Single)
  14. Riga 2 / Colonna 8 → 2 (Naked Single)
  15. Riga 3 / Colonna 2 → 2 (Hidden Single)
  16. Locked Candidates Type 1 (Pointing): 5 in b1 => r4c3<>5
  17. Locked Candidates Type 1 (Pointing): 7 in b1 => r79c3<>7
  18. Locked Candidates Type 1 (Pointing): 6 in b7 => r9c45<>6
  19. Locked Candidates Type 1 (Pointing): 5 in b9 => r6c7<>5
  20. Naked Pair: 4,8 in r27c1 => r5c1<>4, r59c1<>8
  21. Naked Triple: 1,3,7 in r1c79,r3c8 => r3c79<>7, r3c9<>1
  22. Hidden Pair: 2,5 in r79c7 => r7c7<>3, r79c7<>7, r79c7<>8
  23. Locked Candidates Type 1 (Pointing): 7 in b9 => r145c9<>7
  24. XY-Wing: 1/7/3 in r1c7,r38c8 => r8c7<>3
  25. Riga 8 / Colonna 7 → 8 (Naked Single)
  26. Riga 8 / Colonna 4 → 6 (Naked Single)
  27. Riga 4 / Colonna 4 → 7 (Naked Single)
  28. Riga 6 / Colonna 4 → 1 (Naked Single)
  29. Riga 5 / Colonna 4 → 2 (Naked Single)
  30. Riga 6 / Colonna 2 → 8 (Hidden Single)
  31. Riga 2 / Colonna 2 → 4 (Naked Single)
  32. Riga 2 / Colonna 1 → 8 (Full House)
  33. Riga 7 / Colonna 1 → 4 (Naked Single)
  34. Riga 5 / Colonna 9 → 8 (Hidden Single)
  35. Riga 3 / Colonna 8 → 7 (Hidden Single)
  36. Riga 1 / Colonna 7 → 3 (Naked Single)
  37. Riga 3 / Colonna 3 → 5 (Naked Single)
  38. Riga 1 / Colonna 3 → 7 (Full House)
  39. Riga 1 / Colonna 9 → 1 (Naked Single)
  40. Riga 1 / Colonna 5 → 5 (Full House)
  41. Riga 3 / Colonna 5 → 1 (Full House)
  42. Riga 6 / Colonna 7 → 6 (Naked Single)
  43. Riga 3 / Colonna 7 → 4 (Naked Single)
  44. Riga 3 / Colonna 9 → 6 (Full House)
  45. Riga 6 / Colonna 5 → 3 (Naked Single)
  46. Riga 5 / Colonna 5 → 6 (Full House)
  47. Riga 6 / Colonna 8 → 5 (Full House)
  48. Riga 5 / Colonna 7 → 7 (Naked Single)
  49. Riga 5 / Colonna 1 → 1 (Naked Single)
  50. Riga 9 / Colonna 1 → 6 (Full House)
  51. Riga 4 / Colonna 8 → 3 (Naked Single)
  52. Riga 4 / Colonna 9 → 4 (Full House)
  53. Riga 8 / Colonna 8 → 1 (Full House)
  54. Riga 5 / Colonna 2 → 3 (Naked Single)
  55. Riga 5 / Colonna 3 → 4 (Full House)
  56. Riga 9 / Colonna 3 → 8 (Naked Single)
  57. Riga 4 / Colonna 2 → 5 (Naked Single)
  58. Riga 4 / Colonna 3 → 6 (Full House)
  59. Riga 7 / Colonna 3 → 3 (Full House)
  60. Riga 8 / Colonna 2 → 9 (Naked Single)
  61. Riga 9 / Colonna 4 → 5 (Naked Single)
  62. Riga 7 / Colonna 4 → 8 (Full House)
  63. Riga 7 / Colonna 2 → 7 (Naked Single)
  64. Riga 9 / Colonna 2 → 1 (Full House)
  65. Riga 8 / Colonna 5 → 4 (Naked Single)
  66. Riga 8 / Colonna 9 → 3 (Full House)
  67. Riga 9 / Colonna 7 → 2 (Naked Single)
  68. Riga 7 / Colonna 7 → 5 (Full House)
  69. Riga 7 / Colonna 9 → 9 (Naked Single)
  70. Riga 7 / Colonna 5 → 2 (Full House)
  71. Riga 9 / Colonna 5 → 9 (Full House)
  72. Riga 9 / Colonna 9 → 7 (Full House)
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