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

Questo puzzle di sudoku ha 74 passaggi e viene risolto utilizzando tecniche di Naked Single, Hidden Single, Locked Triple, Full House, Locked Candidates Type 1 (Pointing), Locked Candidates Type 2 (Claiming), Hidden Pair, Empty Rectangle, Naked Pair, Hidden Rectangle, undefined, Uniqueness Test 1.

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

Passaggi della soluzione:

  1. Riga 5 / Colonna 4 → 8 (Naked Single)
  2. Riga 5 / Colonna 6 → 3 (Hidden Single)
  3. Riga 3 / Colonna 4 → 9 (Hidden Single)
  4. Riga 7 / Colonna 6 → 6 (Hidden Single)
  5. Riga 2 / Colonna 5 → 4 (Hidden Single)
  6. Locked Triple: 1,5,7 in r1c456 => r1c28<>5, r1c2,r2c6<>7
  7. Riga 2 / Colonna 3 → 7 (Hidden Single)
  8. Riga 5 / Colonna 3 → 6 (Naked Single)
  9. Riga 1 / Colonna 6 → 7 (Hidden Single)
  10. Riga 2 / Colonna 6 → 2 (Hidden Single)
  11. Riga 3 / Colonna 6 → 8 (Naked Single)
  12. Riga 9 / Colonna 6 → 1 (Full House)
  13. Riga 3 / Colonna 2 → 2 (Hidden Single)
  14. Locked Candidates Type 1 (Pointing): 5 in b1 => r4c1<>5
  15. Locked Candidates Type 1 (Pointing): 9 in b7 => r7c78<>9
  16. Locked Candidates Type 2 (Claiming): 2 in r9 => r7c4,r8c5<>2
  17. Locked Candidates Type 2 (Claiming): 4 in c7 => r7c89,r8c89,r9c8<>4
  18. Hidden Pair: 5,7 in r45c2 => r4c2<>1, r4c2<>3, r4c2<>8
  19. Locked Candidates Type 1 (Pointing): 1 in b4 => r78c1<>1
  20. Locked Candidates Type 1 (Pointing): 8 in b4 => r78c3<>8
  21. Hidden Pair: 1,2 in r78c9 => r78c9<>5, r7c9<>7, r78c9<>8, r8c9<>3
  22. Riga 7 / Colonna 8 → 7 (Hidden Single)
  23. Empty Rectangle: 3 in b7 (r1c28) => r8c8<>3
  24. Naked Pair: 5,8 in r8c58 => r8c27<>8, r8c7<>5
  25. Hidden Rectangle: 4/5 in r3c89,r5c89 => r3c9<>5
  26. XY-Chain: 4 4- r3c9 -3- r1c8 -6- r1c2 -3- r9c2 -8- r9c5 -2- r9c4 -4- r7c4 -5- r8c5 -8- r8c8 -5- r5c8 -4 => r3c8,r5c9<>4
  27. Riga 3 / Colonna 9 → 4 (Hidden Single)
  28. Riga 5 / Colonna 8 → 4 (Hidden Single)
  29. Locked Candidates Type 1 (Pointing): 3 in b3 => r69c8<>3
  30. Locked Candidates Type 1 (Pointing): 3 in b9 => r46c7<>3
  31. Uniqueness Test 1: 5/7 in r4c29,r5c29 => r4c9<>5, r4c9<>7
  32. XY-Chain: 4 4- r7c1 -9- r7c3 -2- r8c3 -3- r8c7 -4 => r7c7,r8c1<>4
  33. Riga 8 / Colonna 7 → 4 (Hidden Single)
  34. Riga 7 / Colonna 1 → 4 (Hidden Single)
  35. Riga 7 / Colonna 4 → 5 (Naked Single)
  36. Riga 1 / Colonna 4 → 1 (Naked Single)
  37. Riga 1 / Colonna 5 → 5 (Full House)
  38. Riga 7 / Colonna 7 → 8 (Naked Single)
  39. Riga 8 / Colonna 5 → 8 (Naked Single)
  40. Riga 6 / Colonna 4 → 2 (Naked Single)
  41. Riga 9 / Colonna 4 → 4 (Full House)
  42. Riga 9 / Colonna 5 → 2 (Full House)
  43. Riga 7 / Colonna 2 → 1 (Naked Single)
  44. Riga 8 / Colonna 8 → 5 (Naked Single)
  45. Riga 9 / Colonna 8 → 9 (Naked Single)
  46. Riga 7 / Colonna 9 → 2 (Naked Single)
  47. Riga 7 / Colonna 3 → 9 (Full House)
  48. Riga 3 / Colonna 8 → 3 (Naked Single)
  49. Riga 3 / Colonna 1 → 5 (Full House)
  50. Riga 9 / Colonna 7 → 3 (Naked Single)
  51. Riga 8 / Colonna 9 → 1 (Full House)
  52. Riga 9 / Colonna 2 → 8 (Full House)
  53. Riga 1 / Colonna 8 → 6 (Naked Single)
  54. Riga 1 / Colonna 2 → 3 (Full House)
  55. Riga 2 / Colonna 1 → 6 (Full House)
  56. Riga 6 / Colonna 8 → 8 (Full House)
  57. Riga 2 / Colonna 7 → 5 (Naked Single)
  58. Riga 2 / Colonna 9 → 8 (Full House)
  59. Riga 8 / Colonna 2 → 6 (Naked Single)
  60. Riga 8 / Colonna 1 → 3 (Naked Single)
  61. Riga 8 / Colonna 3 → 2 (Full House)
  62. Riga 4 / Colonna 9 → 3 (Naked Single)
  63. Riga 6 / Colonna 3 → 3 (Naked Single)
  64. Riga 4 / Colonna 3 → 8 (Full House)
  65. Riga 4 / Colonna 7 → 9 (Naked Single)
  66. Riga 6 / Colonna 7 → 6 (Full House)
  67. Riga 6 / Colonna 9 → 7 (Naked Single)
  68. Riga 5 / Colonna 9 → 5 (Full House)
  69. Riga 5 / Colonna 2 → 7 (Full House)
  70. Riga 4 / Colonna 2 → 5 (Full House)
  71. Riga 4 / Colonna 1 → 1 (Naked Single)
  72. Riga 4 / Colonna 5 → 7 (Full House)
  73. Riga 6 / Colonna 5 → 1 (Full House)
  74. Riga 6 / Colonna 1 → 9 (Full House)
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