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

Questo puzzle di sudoku ha 66 passaggi e viene risolto utilizzando tecniche di Naked Quadruple, Naked Single, Hidden Single, Locked Candidates Type 1 (Pointing), Hidden Pair, Full House.

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

Passaggi della soluzione:

  1. Naked Quadruple: 1,2,3,5 in r1289c2 => r467c2<>1, r4c2<>2, r4c2<>3, r7c2<>5
  2. Riga 7 / Colonna 2 → 9 (Naked Single)
  3. Riga 4 / Colonna 2 → 4 (Naked Single)
  4. Riga 6 / Colonna 2 → 4 (Naked Single)
  5. Riga 7 / Colonna 5 → 5 (Hidden Single)
  6. Locked Candidates Type 1 (Pointing): 4 in b5 => r5c79<>4
  7. Locked Candidates Type 1 (Pointing): 4 in b8 => r9c89<>4
  8. Riga 7 / Colonna 8 → 4 (Hidden Single)
  9. Riga 2 / Colonna 7 → 4 (Hidden Single)
  10. Locked Candidates Type 1 (Pointing): 7 in b8 => r9c89<>7
  11. Hidden Pair: 4,7 in r45c1 => r45c1<>1, r45c1<>2, r45c1<>3, r4c1<>9
  12. Riga 4 / Colonna 1 → 7 (Naked Single)
  13. Riga 5 / Colonna 1 → 7 (Naked Single)
  14. Riga 3 / Colonna 1 → 9 (Hidden Single)
  15. Riga 1 / Colonna 8 → 7 (Hidden Single)
  16. Riga 6 / Colonna 6 → 7 (Hidden Single)
  17. Riga 9 / Colonna 5 → 7 (Hidden Single)
  18. Riga 2 / Colonna 4 → 7 (Hidden Single)
  19. Riga 7 / Colonna 7 → 7 (Hidden Single)
  20. Riga 6 / Colonna 3 → 9 (Hidden Single)
  21. Riga 4 / Colonna 6 → 9 (Hidden Single)
  22. Riga 9 / Colonna 4 → 4 (Hidden Single)
  23. Riga 5 / Colonna 5 → 4 (Hidden Single)
  24. Locked Candidates Type 1 (Pointing): 1 in b4 => r239c3<>1
  25. Locked Candidates Type 1 (Pointing): 2 in b4 => r239c3<>2
  26. Locked Candidates Type 1 (Pointing): 3 in b4 => r239c3<>3
  27. Riga 2 / Colonna 3 → 5 (Naked Single)
  28. Riga 3 / Colonna 3 → 6 (Naked Single)
  29. Riga 9 / Colonna 3 → 6 (Naked Single)
  30. Riga 7 / Colonna 1 → 1 (Naked Single)
  31. Riga 7 / Colonna 9 → 6 (Full House)
  32. Riga 6 / Colonna 9 → 1 (Naked Single)
  33. Riga 4 / Colonna 8 → 2 (Naked Single)
  34. Riga 5 / Colonna 9 → 2 (Naked Single)
  35. Riga 6 / Colonna 7 → 6 (Naked Single)
  36. Riga 5 / Colonna 7 → 5 (Naked Single)
  37. Riga 2 / Colonna 9 → 3 (Naked Single)
  38. Riga 8 / Colonna 9 → 3 (Naked Single)
  39. Riga 9 / Colonna 9 → 3 (Naked Single)
  40. Riga 4 / Colonna 7 → 5 (Naked Single)
  41. Riga 5 / Colonna 6 → 1 (Naked Single)
  42. Riga 8 / Colonna 2 → 2 (Naked Single)
  43. Riga 9 / Colonna 1 → 2 (Naked Single)
  44. Riga 2 / Colonna 6 → 2 (Naked Single)
  45. Riga 2 / Colonna 2 → 1 (Full House)
  46. Riga 1 / Colonna 1 → 3 (Full House)
  47. Riga 1 / Colonna 2 → 3 (Full House)
  48. Riga 5 / Colonna 3 → 3 (Naked Single)
  49. Riga 5 / Colonna 4 → 3 (Naked Single)
  50. Riga 9 / Colonna 6 → 8 (Naked Single)
  51. Riga 9 / Colonna 2 → 5 (Naked Single)
  52. Riga 4 / Colonna 3 → 1 (Naked Single)
  53. Riga 3 / Colonna 4 → 1 (Naked Single)
  54. Riga 4 / Colonna 4 → 6 (Naked Single)
  55. Riga 4 / Colonna 5 → 6 (Naked Single)
  56. Riga 8 / Colonna 6 → 6 (Naked Single)
  57. Riga 8 / Colonna 5 → 1 (Full House)
  58. Riga 1 / Colonna 6 → 5 (Full House)
  59. Riga 9 / Colonna 8 → 1 (Naked Single)
  60. Riga 3 / Colonna 8 → 8 (Full House)
  61. Riga 1 / Colonna 4 → 5 (Naked Single)
  62. Riga 1 / Colonna 5 → 8 (Naked Single)
  63. Riga 8 / Colonna 7 → 8 (Naked Single)
  64. Riga 3 / Colonna 5 → 3 (Naked Single)
  65. Riga 3 / Colonna 7 → 2 (Full House)
  66. Riga 1 / Colonna 7 → 1 (Full House)
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