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

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

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

Passaggi della soluzione:

  1. Riga 3 / Colonna 7 → 7 (Hidden Single)
  2. Riga 5 / Colonna 5 → 7 (Hidden Single)
  3. Riga 6 / Colonna 8 → 2 (Hidden Single)
  4. Riga 8 / Colonna 1 → 9 (Hidden Single)
  5. Riga 3 / Colonna 4 → 2 (Hidden Single)
  6. Riga 6 / Colonna 6 → 8 (Hidden Single)
  7. Riga 2 / Colonna 5 → 9 (Hidden Single)
  8. Riga 4 / Colonna 4 → 9 (Hidden Single)
  9. Riga 2 / Colonna 7 → 2 (Hidden Single)
  10. Riga 7 / Colonna 6 → 2 (Hidden Single)
  11. Riga 7 / Colonna 2 → 7 (Hidden Single)
  12. Riga 8 / Colonna 6 → 7 (Hidden Single)
  13. Riga 9 / Colonna 8 → 7 (Hidden Single)
  14. Riga 7 / Colonna 1 → 8 (Hidden Single)
  15. Riga 2 / Colonna 2 → 8 (Hidden Single)
  16. Riga 5 / Colonna 8 → 8 (Hidden Single)
  17. Riga 2 / Colonna 4 → 6 (Hidden Single)
  18. Riga 1 / Colonna 3 → 6 (Hidden Single)
  19. Riga 8 / Colonna 2 → 6 (Hidden Single)
  20. Locked Candidates Type 1 (Pointing): 3 in b1 => r9c1<>3
  21. Locked Candidates Type 1 (Pointing): 3 in b4 => r9c2<>3
  22. Skyscraper: 5 in r6c2,r8c3 (connected by r68c4) => r5c3,r9c2<>5
  23. Riga 9 / Colonna 2 → 1 (Naked Single)
  24. Locked Candidates Type 1 (Pointing): 1 in b4 => r5c79<>1
  25. Riga 5 / Colonna 9 → 9 (Naked Single)
  26. Riga 5 / Colonna 7 → 5 (Naked Single)
  27. Riga 7 / Colonna 7 → 9 (Hidden Single)
  28. Skyscraper: 1 in r6c9,r8c8 (connected by r68c4) => r4c8,r7c9<>1
  29. Riga 8 / Colonna 8 → 1 (Hidden Single)
  30. W-Wing: 3/4 in r2c8,r9c7 connected by 4 in r4c78 => r1c7<>3
  31. W-Wing: 4/1 in r1c7,r2c6 connected by 1 in r4c67 => r1c6,r2c8<>4
  32. Riga 2 / Colonna 8 → 3 (Naked Single)
  33. Riga 4 / Colonna 8 → 4 (Full House)
  34. Riga 2 / Colonna 6 → 4 (Hidden Single)
  35. Riga 2 / Colonna 1 → 1 (Full House)
  36. Riga 5 / Colonna 1 → 2 (Naked Single)
  37. Riga 5 / Colonna 3 → 1 (Full House)
  38. Riga 1 / Colonna 1 → 3 (Hidden Single)
  39. Riga 9 / Colonna 3 → 2 (Hidden Single)
  40. Riga 7 / Colonna 3 → 3 (Hidden Single)
  41. Locked Candidates Type 1 (Pointing): 4 in b1 => r3c9<>4
  42. Locked Candidates Type 1 (Pointing): 5 in b1 => r3c5<>5
  43. X-Wing: 1 c67 r14 => r1c59<>1
  44. Bivalue Universal Grave + 1 => r9c9<>3, r9c9<>6
  45. Riga 9 / Colonna 9 → 4 (Naked Single)
  46. Riga 1 / Colonna 9 → 8 (Naked Single)
  47. Riga 7 / Colonna 9 → 6 (Naked Single)
  48. Riga 9 / Colonna 7 → 3 (Full House)
  49. Riga 9 / Colonna 1 → 5 (Naked Single)
  50. Riga 3 / Colonna 1 → 4 (Full House)
  51. Riga 8 / Colonna 3 → 4 (Full House)
  52. Riga 9 / Colonna 5 → 6 (Full House)
  53. Riga 3 / Colonna 3 → 5 (Full House)
  54. Riga 8 / Colonna 4 → 5 (Full House)
  55. Riga 1 / Colonna 5 → 5 (Naked Single)
  56. Riga 3 / Colonna 9 → 1 (Naked Single)
  57. Riga 1 / Colonna 7 → 4 (Full House)
  58. Riga 4 / Colonna 7 → 1 (Full House)
  59. Riga 1 / Colonna 6 → 1 (Full House)
  60. Riga 3 / Colonna 5 → 8 (Full House)
  61. Riga 7 / Colonna 5 → 1 (Full House)
  62. Riga 6 / Colonna 9 → 3 (Full House)
  63. Riga 4 / Colonna 6 → 5 (Full House)
  64. Riga 6 / Colonna 4 → 1 (Full House)
  65. Riga 7 / Colonna 4 → 4 (Full House)
  66. Riga 6 / Colonna 2 → 5 (Full House)
  67. Riga 4 / Colonna 2 → 3 (Full House)
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