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

Questo puzzle di sudoku ha 74 passaggi e viene risolto utilizzando tecniche di Naked Single, Full House, Hidden Single, Locked Candidates Type 1 (Pointing), Locked Candidates Type 2 (Claiming), Hidden Triple, undefined, Uniqueness Test 3, Hidden Rectangle.

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

Passaggi della soluzione:

  1. Riga 2 / Colonna 5 → 3 (Naked Single)
  2. Riga 2 / Colonna 4 → 9 (Naked Single)
  3. Riga 2 / Colonna 6 → 4 (Naked Single)
  4. Riga 2 / Colonna 2 → 6 (Naked Single)
  5. Riga 2 / Colonna 8 → 7 (Full House)
  6. Riga 6 / Colonna 2 → 1 (Hidden Single)
  7. Riga 6 / Colonna 9 → 7 (Hidden Single)
  8. Riga 6 / Colonna 8 → 4 (Hidden Single)
  9. Locked Candidates Type 1 (Pointing): 3 in b6 => r5c123<>3
  10. Locked Candidates Type 1 (Pointing): 3 in b4 => r4c46<>3
  11. Locked Candidates Type 1 (Pointing): 4 in b9 => r7c123<>4
  12. Locked Candidates Type 2 (Claiming): 5 in r6 => r4c46,r5c5<>5
  13. Hidden Triple: 1,6,7 in r789c1 => r78c1<>3, r789c1<>5, r789c1<>9, r8c1<>4
  14. Riga 8 / Colonna 2 → 4 (Hidden Single)
  15. Locked Candidates Type 1 (Pointing): 3 in b7 => r7c4<>3
  16. W-Wing: 5/6 in r4c8,r8c5 connected by 6 in r4c4,r5c5 => r8c8<>5
  17. Locked Candidates Type 2 (Claiming): 5 in r8 => r7c45,r9c56<>5
  18. XY-Wing: 5/8/2 in r14c6,r3c4 => r4c4<>2
  19. Riga 4 / Colonna 6 → 2 (Hidden Single)
  20. Uniqueness Test 3: 3/5 in r6c46,r8c46 => r8c5<>6
  21. Riga 8 / Colonna 5 → 5 (Naked Single)
  22. Hidden Rectangle: 6/7 in r7c15,r9c15 => r9c5<>6
  23. 2-String Kite: 6 in r4c8,r7c5 (connected by r4c4,r5c5) => r7c8<>6
  24. XY-Chain: 6 6- r5c5 -8- r1c5 -1- r3c5 -2- r3c4 -5- r6c4 -3- r8c4 -6 => r4c4,r7c5<>6
  25. Riga 4 / Colonna 4 → 8 (Naked Single)
  26. Riga 5 / Colonna 5 → 6 (Naked Single)
  27. Riga 5 / Colonna 9 → 3 (Naked Single)
  28. Riga 5 / Colonna 7 → 5 (Naked Single)
  29. Riga 4 / Colonna 8 → 6 (Full House)
  30. Riga 5 / Colonna 2 → 8 (Hidden Single)
  31. Riga 7 / Colonna 8 → 5 (Hidden Single)
  32. Locked Candidates Type 2 (Claiming): 9 in c2 => r79c3<>9
  33. XY-Wing: 1/9/6 in r8c18,r9c7 => r9c1<>6
  34. Locked Candidates Type 2 (Claiming): 6 in r9 => r7c79<>6
  35. XY-Chain: 4 4- r3c9 -1- r3c5 -2- r3c4 -5- r6c4 -3- r8c4 -6- r8c1 -1- r8c8 -9- r7c7 -4 => r13c7,r7c9<>4
  36. Riga 7 / Colonna 9 → 8 (Naked Single)
  37. Riga 7 / Colonna 7 → 4 (Hidden Single)
  38. Riga 7 / Colonna 2 → 9 (Hidden Single)
  39. Riga 9 / Colonna 2 → 5 (Naked Single)
  40. Riga 4 / Colonna 2 → 3 (Full House)
  41. Riga 4 / Colonna 1 → 5 (Full House)
  42. Riga 9 / Colonna 3 → 2 (Naked Single)
  43. Riga 7 / Colonna 3 → 3 (Naked Single)
  44. Hidden Rectangle: 3/9 in r1c17,r3c17 => r1c1<>9
  45. XY-Chain: 9 9- r1c8 -1- r1c5 -8- r9c5 -7- r9c1 -1- r9c9 -6- r9c7 -9 => r13c7,r8c8<>9
  46. Riga 3 / Colonna 7 → 3 (Naked Single)
  47. Riga 8 / Colonna 8 → 1 (Naked Single)
  48. Riga 1 / Colonna 8 → 9 (Full House)
  49. Riga 1 / Colonna 7 → 6 (Naked Single)
  50. Riga 9 / Colonna 7 → 9 (Full House)
  51. Riga 9 / Colonna 9 → 6 (Full House)
  52. Riga 8 / Colonna 1 → 6 (Naked Single)
  53. Riga 9 / Colonna 6 → 8 (Naked Single)
  54. Riga 7 / Colonna 1 → 7 (Naked Single)
  55. Riga 9 / Colonna 1 → 1 (Full House)
  56. Riga 9 / Colonna 5 → 7 (Full House)
  57. Riga 8 / Colonna 4 → 3 (Naked Single)
  58. Riga 8 / Colonna 6 → 9 (Full House)
  59. Riga 1 / Colonna 6 → 5 (Naked Single)
  60. Riga 6 / Colonna 6 → 3 (Full House)
  61. Riga 6 / Colonna 4 → 5 (Full House)
  62. Riga 7 / Colonna 5 → 2 (Naked Single)
  63. Riga 7 / Colonna 4 → 6 (Full House)
  64. Riga 3 / Colonna 4 → 2 (Full House)
  65. Riga 1 / Colonna 3 → 4 (Naked Single)
  66. Riga 3 / Colonna 5 → 1 (Naked Single)
  67. Riga 1 / Colonna 5 → 8 (Full House)
  68. Riga 1 / Colonna 1 → 3 (Naked Single)
  69. Riga 1 / Colonna 9 → 1 (Full House)
  70. Riga 3 / Colonna 9 → 4 (Full House)
  71. Riga 3 / Colonna 1 → 9 (Naked Single)
  72. Riga 3 / Colonna 3 → 5 (Full House)
  73. Riga 5 / Colonna 3 → 9 (Full House)
  74. Riga 5 / Colonna 1 → 4 (Full House)
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