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

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

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

Passaggi della soluzione:

  1. Riga 5 / Colonna 1 → 1 (Hidden Single)
  2. Riga 5 / Colonna 6 → 7 (Hidden Single)
  3. Riga 2 / Colonna 4 → 7 (Hidden Single)
  4. Riga 8 / Colonna 2 → 2 (Hidden Single)
  5. Locked Pair: 6,9 in r46c8 => r1289c8,r5c79<>6, r129c8,r5c79<>9
  6. Locked Candidates Type 1 (Pointing): 2 in b4 => r123c3<>2
  7. Riga 2 / Colonna 6 → 2 (Hidden Single)
  8. Locked Pair: 6,9 in r3c56 => r1c56,r3c1379<>6, r1c56,r3c379<>9
  9. Locked Candidates Type 1 (Pointing): 1 in b2 => r1c78<>1
  10. Locked Candidates Type 1 (Pointing): 4 in b6 => r5c35<>4
  11. Riga 6 / Colonna 3 → 4 (Hidden Single)
  12. Riga 6 / Colonna 5 → 2 (Hidden Single)
  13. Riga 5 / Colonna 3 → 2 (Hidden Single)
  14. Riga 6 / Colonna 6 → 1 (Hidden Single)
  15. Riga 1 / Colonna 6 → 4 (Naked Single)
  16. Riga 1 / Colonna 5 → 1 (Naked Single)
  17. Riga 6 / Colonna 2 → 8 (Hidden Single)
  18. Riga 4 / Colonna 6 → 8 (Hidden Single)
  19. Riga 7 / Colonna 5 → 4 (Hidden Single)
  20. Riga 8 / Colonna 4 → 6 (Naked Single)
  21. Riga 6 / Colonna 4 → 9 (Naked Single)
  22. Riga 4 / Colonna 4 → 4 (Full House)
  23. Riga 5 / Colonna 5 → 6 (Full House)
  24. Riga 6 / Colonna 8 → 6 (Full House)
  25. Riga 3 / Colonna 5 → 9 (Naked Single)
  26. Riga 3 / Colonna 6 → 6 (Full House)
  27. Riga 9 / Colonna 5 → 8 (Full House)
  28. Riga 5 / Colonna 2 → 9 (Naked Single)
  29. Riga 4 / Colonna 8 → 9 (Naked Single)
  30. Riga 8 / Colonna 7 → 8 (Hidden Single)
  31. Riga 8 / Colonna 9 → 4 (Hidden Single)
  32. Riga 5 / Colonna 9 → 5 (Naked Single)
  33. Riga 5 / Colonna 7 → 4 (Full House)
  34. Skyscraper: 7 in r7c2,r9c8 (connected by r1c28) => r7c7,r9c1<>7
  35. Naked Pair: 3,6 in r49c1 => r137c1<>3, r17c1<>6
  36. Hidden Pair: 1,7 in r9c78 => r9c78<>5, r9c7<>6, r9c7<>9, r9c8<>3
  37. Skyscraper: 5 in r7c2,r8c8 (connected by r2c28) => r7c7<>5
  38. Riga 8 / Colonna 8 → 5 (Hidden Single)
  39. Riga 8 / Colonna 6 → 3 (Full House)
  40. Riga 2 / Colonna 8 → 1 (Naked Single)
  41. Riga 9 / Colonna 8 → 7 (Naked Single)
  42. Riga 1 / Colonna 8 → 3 (Full House)
  43. Riga 9 / Colonna 7 → 1 (Naked Single)
  44. Riga 3 / Colonna 9 → 2 (Naked Single)
  45. Riga 3 / Colonna 1 → 7 (Naked Single)
  46. Riga 1 / Colonna 2 → 6 (Naked Single)
  47. Riga 3 / Colonna 7 → 5 (Naked Single)
  48. Riga 3 / Colonna 3 → 3 (Full House)
  49. Riga 7 / Colonna 1 → 8 (Naked Single)
  50. Riga 1 / Colonna 9 → 9 (Naked Single)
  51. Riga 2 / Colonna 2 → 5 (Naked Single)
  52. Riga 4 / Colonna 2 → 3 (Naked Single)
  53. Riga 4 / Colonna 1 → 6 (Full House)
  54. Riga 7 / Colonna 2 → 7 (Full House)
  55. Riga 1 / Colonna 1 → 2 (Naked Single)
  56. Riga 9 / Colonna 1 → 3 (Full House)
  57. Riga 1 / Colonna 3 → 8 (Naked Single)
  58. Riga 1 / Colonna 7 → 7 (Full House)
  59. Riga 2 / Colonna 7 → 6 (Full House)
  60. Riga 2 / Colonna 3 → 9 (Full House)
  61. Riga 7 / Colonna 7 → 9 (Full House)
  62. Riga 9 / Colonna 9 → 6 (Naked Single)
  63. Riga 7 / Colonna 9 → 3 (Full House)
  64. Riga 7 / Colonna 6 → 5 (Naked Single)
  65. Riga 7 / Colonna 3 → 6 (Full House)
  66. Riga 9 / Colonna 3 → 5 (Full House)
  67. Riga 9 / Colonna 6 → 9 (Full House)
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