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

Questo puzzle di sudoku ha 69 passaggi e viene risolto utilizzando tecniche di Hidden Single, Full House, Naked Single, Locked Candidates Type 2 (Claiming), Naked Triple, Skyscraper, Empty Rectangle, Uniqueness Test 4, undefined, Swordfish, Naked Pair.

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

Passaggi della soluzione:

  1. Riga 5 / Colonna 9 → 4 (Hidden Single)
  2. Riga 5 / Colonna 7 → 6 (Hidden Single)
  3. Riga 8 / Colonna 4 → 4 (Hidden Single)
  4. Riga 7 / Colonna 9 → 1 (Hidden Single)
  5. Riga 6 / Colonna 7 → 1 (Hidden Single)
  6. Riga 7 / Colonna 3 → 4 (Hidden Single)
  7. Riga 3 / Colonna 2 → 4 (Hidden Single)
  8. Riga 6 / Colonna 8 → 3 (Hidden Single)
  9. Riga 4 / Colonna 8 → 2 (Full House)
  10. Riga 1 / Colonna 6 → 4 (Hidden Single)
  11. Riga 2 / Colonna 5 → 3 (Hidden Single)
  12. Riga 8 / Colonna 3 → 3 (Hidden Single)
  13. Riga 4 / Colonna 1 → 3 (Hidden Single)
  14. Riga 8 / Colonna 2 → 1 (Hidden Single)
  15. Riga 4 / Colonna 2 → 5 (Naked Single)
  16. Riga 4 / Colonna 3 → 9 (Hidden Single)
  17. Riga 4 / Colonna 4 → 6 (Naked Single)
  18. Riga 4 / Colonna 6 → 1 (Full House)
  19. Riga 6 / Colonna 4 → 9 (Hidden Single)
  20. Riga 3 / Colonna 5 → 1 (Hidden Single)
  21. Locked Candidates Type 2 (Claiming): 2 in r8 => r7c56,r9c56<>2
  22. Naked Triple: 2,5,7 in r1c379 => r1c15<>2, r1c1<>7, r1c5<>5
  23. Skyscraper: 2 in r5c4,r6c2 (connected by r2c24) => r5c13,r6c6<>2
  24. Riga 6 / Colonna 6 → 7 (Naked Single)
  25. Riga 6 / Colonna 2 → 2 (Full House)
  26. Riga 2 / Colonna 2 → 7 (Full House)
  27. Riga 1 / Colonna 9 → 7 (Hidden Single)
  28. Skyscraper: 2 in r1c3,r7c1 (connected by r17c7) => r23c1,r9c3<>2
  29. Empty Rectangle: 5 in b2 (r27c8) => r7c6<>5
  30. Uniqueness Test 4: 2/3 in r3c79,r9c79 => r39c7<>2
  31. XY-Chain: 5 5- r2c4 -2- r5c4 -5- r5c5 -2- r8c5 -7- r8c8 -8- r2c8 -5 => r2c36<>5
  32. XY-Chain: 9 9- r1c5 -6- r2c6 -2- r8c6 -8- r7c6 -9 => r3c6,r7c5<>9
  33. Riga 3 / Colonna 1 → 9 (Hidden Single)
  34. Riga 1 / Colonna 1 → 6 (Naked Single)
  35. Riga 1 / Colonna 5 → 9 (Naked Single)
  36. Riga 7 / Colonna 6 → 9 (Hidden Single)
  37. Riga 9 / Colonna 5 → 6 (Hidden Single)
  38. Riga 2 / Colonna 6 → 6 (Hidden Single)
  39. Locked Candidates Type 2 (Claiming): 7 in r9 => r7c1<>7
  40. Swordfish: 5 r139 c367 => r7c7<>5
  41. Naked Pair: 2,8 in r7c17 => r7c8<>8
  42. Skyscraper: 8 in r3c3,r7c1 (connected by r37c7) => r2c1,r9c3<>8
  43. Riga 2 / Colonna 1 → 1 (Naked Single)
  44. Riga 9 / Colonna 3 → 7 (Naked Single)
  45. Riga 5 / Colonna 1 → 7 (Naked Single)
  46. Riga 5 / Colonna 3 → 1 (Full House)
  47. W-Wing: 5/2 in r1c3,r3c6 connected by 2 in r2c34 => r3c3<>5
  48. Riga 1 / Colonna 3 → 5 (Hidden Single)
  49. Riga 1 / Colonna 7 → 2 (Full House)
  50. Riga 3 / Colonna 9 → 3 (Naked Single)
  51. Riga 9 / Colonna 9 → 2 (Full House)
  52. Riga 7 / Colonna 7 → 8 (Naked Single)
  53. Riga 9 / Colonna 1 → 8 (Naked Single)
  54. Riga 7 / Colonna 1 → 2 (Full House)
  55. Riga 3 / Colonna 7 → 5 (Naked Single)
  56. Riga 2 / Colonna 8 → 8 (Full House)
  57. Riga 9 / Colonna 7 → 3 (Full House)
  58. Riga 9 / Colonna 6 → 5 (Full House)
  59. Riga 8 / Colonna 8 → 7 (Naked Single)
  60. Riga 7 / Colonna 8 → 5 (Full House)
  61. Riga 7 / Colonna 5 → 7 (Full House)
  62. Riga 3 / Colonna 6 → 2 (Naked Single)
  63. Riga 2 / Colonna 4 → 5 (Full House)
  64. Riga 2 / Colonna 3 → 2 (Full House)
  65. Riga 3 / Colonna 3 → 8 (Full House)
  66. Riga 8 / Colonna 6 → 8 (Full House)
  67. Riga 8 / Colonna 5 → 2 (Full House)
  68. Riga 5 / Colonna 4 → 2 (Full House)
  69. Riga 5 / Colonna 5 → 5 (Full House)
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