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

Questo puzzle di sudoku ha 67 passaggi e viene risolto utilizzando tecniche di Hidden Single, Naked Single, Full House, Locked Candidates Type 1 (Pointing), Naked Pair, Naked Triple, undefined, Turbot Fish.

Naked Single Spiegazione
Hidden Single Spiegazione
Locked Candidates Spiegazione
Full House Spiegazione
Prova a risolvere

Passaggi della soluzione:

  1. Riga 7 / Colonna 1 → 8 (Hidden Single)
  2. Riga 9 / Colonna 7 → 8 (Hidden Single)
  3. Riga 7 / Colonna 2 → 4 (Hidden Single)
  4. Riga 1 / Colonna 9 → 4 (Hidden Single)
  5. Riga 3 / Colonna 1 → 4 (Hidden Single)
  6. Riga 1 / Colonna 8 → 5 (Hidden Single)
  7. Riga 2 / Colonna 9 → 8 (Hidden Single)
  8. Riga 2 / Colonna 1 → 9 (Hidden Single)
  9. Riga 3 / Colonna 8 → 1 (Hidden Single)
  10. Riga 3 / Colonna 2 → 7 (Naked Single)
  11. Riga 1 / Colonna 2 → 1 (Naked Single)
  12. Riga 2 / Colonna 3 → 6 (Full House)
  13. Riga 1 / Colonna 4 → 7 (Naked Single)
  14. Riga 2 / Colonna 5 → 1 (Naked Single)
  15. Riga 2 / Colonna 4 → 2 (Naked Single)
  16. Riga 2 / Colonna 7 → 7 (Full House)
  17. Riga 1 / Colonna 5 → 6 (Hidden Single)
  18. Riga 1 / Colonna 6 → 8 (Full House)
  19. Riga 5 / Colonna 5 → 8 (Hidden Single)
  20. Locked Candidates Type 1 (Pointing): 1 in b5 => r4c13<>1
  21. Locked Candidates Type 1 (Pointing): 1 in b7 => r8c6<>1
  22. Naked Pair: 3,9 in r39c4 => r45c4<>3, r5c4<>9
  23. Naked Triple: 2,5,6 in r378c7 => r4c7<>2, r46c7<>5, r4c7<>6
  24. Locked Candidates Type 1 (Pointing): 5 in b6 => r8c9<>5
  25. X-Wing: 2 c28 r59 => r5c39,r9c3<>2
  26. Riga 9 / Colonna 3 → 7 (Naked Single)
  27. Naked Pair: 4,5 in r5c34 => r5c69<>5
  28. Naked Triple: 3,7,9 in r46c5,r5c6 => r4c6<>3, r4c6<>7
  29. Turbot Fish: 9 r6c5 =9= r8c5 -9- r8c9 =9= r9c8 => r6c8<>9
  30. Riga 6 / Colonna 8 → 7 (Naked Single)
  31. Riga 7 / Colonna 8 → 6 (Naked Single)
  32. Riga 7 / Colonna 7 → 5 (Naked Single)
  33. Riga 7 / Colonna 4 → 1 (Naked Single)
  34. Riga 7 / Colonna 6 → 7 (Full House)
  35. Riga 8 / Colonna 7 → 2 (Naked Single)
  36. Riga 3 / Colonna 7 → 6 (Naked Single)
  37. Riga 3 / Colonna 9 → 2 (Full House)
  38. Riga 8 / Colonna 3 → 1 (Naked Single)
  39. Riga 9 / Colonna 8 → 9 (Naked Single)
  40. Riga 5 / Colonna 8 → 2 (Full House)
  41. Riga 8 / Colonna 9 → 7 (Full House)
  42. Riga 8 / Colonna 1 → 3 (Naked Single)
  43. Riga 9 / Colonna 2 → 2 (Full House)
  44. Riga 5 / Colonna 2 → 3 (Full House)
  45. Riga 9 / Colonna 4 → 3 (Naked Single)
  46. Riga 9 / Colonna 6 → 6 (Full House)
  47. Riga 6 / Colonna 1 → 1 (Naked Single)
  48. Riga 8 / Colonna 5 → 9 (Naked Single)
  49. Riga 8 / Colonna 6 → 5 (Full House)
  50. Riga 5 / Colonna 6 → 9 (Naked Single)
  51. Riga 3 / Colonna 4 → 9 (Naked Single)
  52. Riga 3 / Colonna 6 → 3 (Full House)
  53. Riga 4 / Colonna 6 → 1 (Full House)
  54. Riga 6 / Colonna 5 → 3 (Naked Single)
  55. Riga 4 / Colonna 5 → 7 (Full House)
  56. Riga 5 / Colonna 9 → 6 (Naked Single)
  57. Riga 6 / Colonna 7 → 4 (Naked Single)
  58. Riga 4 / Colonna 7 → 3 (Full House)
  59. Riga 4 / Colonna 1 → 6 (Naked Single)
  60. Riga 5 / Colonna 1 → 7 (Full House)
  61. Riga 4 / Colonna 9 → 5 (Naked Single)
  62. Riga 6 / Colonna 9 → 9 (Full House)
  63. Riga 6 / Colonna 3 → 5 (Full House)
  64. Riga 4 / Colonna 4 → 4 (Naked Single)
  65. Riga 4 / Colonna 3 → 2 (Full House)
  66. Riga 5 / Colonna 3 → 4 (Full House)
  67. Riga 5 / Colonna 4 → 5 (Full House)
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