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

Questo puzzle di sudoku ha 70 passaggi e viene risolto utilizzando tecniche di Hidden Single, Naked Single, Locked Candidates Type 1 (Pointing), Locked Candidates Type 2 (Claiming), Hidden Pair, Swordfish, undefined, Hidden Rectangle, Continuous Nice Loop, Naked Pair, Full House.

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 1 / Colonna 4 → 8 (Hidden Single)
  2. Riga 6 / Colonna 1 → 8 (Hidden Single)
  3. Riga 8 / Colonna 9 → 3 (Hidden Single)
  4. Riga 6 / Colonna 4 → 3 (Hidden Single)
  5. Riga 3 / Colonna 4 → 7 (Naked Single)
  6. Riga 2 / Colonna 4 → 6 (Naked Single)
  7. Riga 8 / Colonna 6 → 8 (Hidden Single)
  8. Riga 2 / Colonna 3 → 3 (Hidden Single)
  9. Riga 3 / Colonna 5 → 3 (Hidden Single)
  10. Riga 6 / Colonna 6 → 6 (Hidden Single)
  11. Riga 5 / Colonna 1 → 3 (Hidden Single)
  12. Locked Candidates Type 1 (Pointing): 7 in b1 => r1c79<>7
  13. Locked Candidates Type 1 (Pointing): 2 in b6 => r5c6<>2
  14. Locked Candidates Type 2 (Claiming): 7 in r6 => r4c8,r5c79<>7
  15. Riga 7 / Colonna 7 → 7 (Hidden Single)
  16. Riga 8 / Colonna 5 → 7 (Hidden Single)
  17. Hidden Pair: 6,7 in r1c13 => r1c1<>2, r1c1<>5, r1c3<>1
  18. Swordfish: 4 r159 c379 => r47c3,r7c9<>4
  19. XYZ-Wing: 1/5/9 in r26c2,r3c3 => r1c2<>1
  20. Hidden Rectangle: 4/9 in r7c48,r8c48 => r7c4<>9
  21. Finned X-Wing: 1 c57 r15 fr3c7 => r1c9<>1
  22. Continuous Nice Loop: 4/5 9= r8c4 =2= r8c2 -2- r1c2 -5- r1c5 -1- r5c5 -9- r4c4 =9= r8c4 =2 => r8c4<>4, r1c79<>5
  23. Riga 7 / Colonna 4 → 4 (Hidden Single)
  24. W-Wing: 1/5 in r2c6,r6c2 connected by 5 in r1c25 => r2c2<>1
  25. Riga 3 / Colonna 3 → 1 (Hidden Single)
  26. X-Wing: 1 c57 r15 => r5c69<>1
  27. Riga 5 / Colonna 6 → 7 (Naked Single)
  28. Naked Pair: 2,4 in r15c9 => r3c9<>2, r9c9<>4
  29. XY-Wing: 2/5/4 in r1c9,r39c7 => r1c7<>4
  30. Riga 1 / Colonna 9 → 4 (Hidden Single)
  31. Riga 5 / Colonna 9 → 2 (Naked Single)
  32. XY-Chain: 9 9- r4c4 -2- r8c4 -9- r8c8 -4- r9c7 -5- r3c7 -2- r1c7 -1- r5c7 -4- r5c3 -9 => r4c123,r5c5<>9
  33. Riga 4 / Colonna 3 → 7 (Naked Single)
  34. Riga 5 / Colonna 5 → 1 (Naked Single)
  35. Riga 1 / Colonna 3 → 6 (Naked Single)
  36. Riga 4 / Colonna 1 → 5 (Naked Single)
  37. Riga 1 / Colonna 5 → 5 (Naked Single)
  38. Riga 2 / Colonna 6 → 1 (Full House)
  39. Riga 4 / Colonna 6 → 2 (Naked Single)
  40. Riga 4 / Colonna 4 → 9 (Full House)
  41. Riga 7 / Colonna 6 → 5 (Full House)
  42. Riga 8 / Colonna 4 → 2 (Full House)
  43. Riga 5 / Colonna 7 → 4 (Naked Single)
  44. Riga 5 / Colonna 3 → 9 (Full House)
  45. Riga 1 / Colonna 1 → 7 (Naked Single)
  46. Riga 6 / Colonna 2 → 1 (Naked Single)
  47. Riga 4 / Colonna 2 → 4 (Full House)
  48. Riga 4 / Colonna 8 → 1 (Full House)
  49. Riga 1 / Colonna 2 → 2 (Naked Single)
  50. Riga 1 / Colonna 7 → 1 (Full House)
  51. Riga 9 / Colonna 7 → 5 (Naked Single)
  52. Riga 3 / Colonna 7 → 2 (Full House)
  53. Riga 7 / Colonna 3 → 8 (Naked Single)
  54. Riga 9 / Colonna 3 → 4 (Full House)
  55. Riga 8 / Colonna 2 → 9 (Naked Single)
  56. Riga 2 / Colonna 2 → 5 (Full House)
  57. Riga 3 / Colonna 1 → 9 (Full House)
  58. Riga 8 / Colonna 8 → 4 (Full House)
  59. Riga 3 / Colonna 9 → 5 (Full House)
  60. Riga 7 / Colonna 8 → 9 (Naked Single)
  61. Riga 9 / Colonna 1 → 6 (Naked Single)
  62. Riga 7 / Colonna 1 → 2 (Full House)
  63. Riga 6 / Colonna 9 → 7 (Naked Single)
  64. Riga 6 / Colonna 8 → 5 (Full House)
  65. Riga 2 / Colonna 8 → 7 (Full House)
  66. Riga 2 / Colonna 9 → 9 (Full House)
  67. Riga 7 / Colonna 5 → 6 (Naked Single)
  68. Riga 7 / Colonna 9 → 1 (Full House)
  69. Riga 9 / Colonna 9 → 8 (Full House)
  70. Riga 9 / Colonna 5 → 9 (Full House)
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