Soluzione per Sudoku difficile #1157496812319

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

Questo puzzle di sudoku ha 55 passaggi e viene risolto utilizzando tecniche di Naked Single, Full House, Hidden Single, Locked Candidates Type 1 (Pointing), Bivalue Universal Grave + 1.

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

Passaggi della soluzione:

  1. Riga 4 / Colonna 5 → 4 (Naked Single)
  2. Riga 6 / Colonna 3 → 9 (Naked Single)
  3. Riga 4 / Colonna 2 → 2 (Naked Single)
  4. Riga 1 / Colonna 3 → 6 (Naked Single)
  5. Riga 8 / Colonna 3 → 5 (Naked Single)
  6. Riga 3 / Colonna 2 → 1 (Naked Single)
  7. Riga 5 / Colonna 3 → 8 (Naked Single)
  8. Riga 2 / Colonna 3 → 7 (Full House)
  9. Riga 3 / Colonna 6 → 8 (Naked Single)
  10. Riga 2 / Colonna 7 → 6 (Naked Single)
  11. Riga 3 / Colonna 1 → 2 (Naked Single)
  12. Riga 2 / Colonna 9 → 1 (Naked Single)
  13. Riga 3 / Colonna 9 → 7 (Naked Single)
  14. Riga 3 / Colonna 5 → 6 (Full House)
  15. Riga 2 / Colonna 8 → 2 (Full House)
  16. Riga 4 / Colonna 7 → 8 (Naked Single)
  17. Riga 4 / Colonna 9 → 6 (Full House)
  18. Riga 7 / Colonna 9 → 5 (Naked Single)
  19. Riga 5 / Colonna 1 → 6 (Hidden Single)
  20. Riga 2 / Colonna 2 → 5 (Hidden Single)
  21. Riga 2 / Colonna 1 → 8 (Hidden Single)
  22. Riga 1 / Colonna 5 → 2 (Hidden Single)
  23. Riga 8 / Colonna 4 → 2 (Hidden Single)
  24. Riga 2 / Colonna 5 → 9 (Hidden Single)
  25. Riga 1 / Colonna 6 → 1 (Hidden Single)
  26. Riga 8 / Colonna 8 → 6 (Hidden Single)
  27. Riga 7 / Colonna 4 → 6 (Hidden Single)
  28. Locked Candidates Type 1 (Pointing): 3 in b5 => r789c5<>3
  29. Riga 7 / Colonna 1 → 3 (Hidden Single)
  30. Riga 6 / Colonna 1 → 4 (Naked Single)
  31. Riga 5 / Colonna 2 → 3 (Full House)
  32. Riga 8 / Colonna 2 → 9 (Naked Single)
  33. Riga 1 / Colonna 2 → 4 (Full House)
  34. Riga 1 / Colonna 1 → 9 (Full House)
  35. Riga 8 / Colonna 1 → 1 (Full House)
  36. Riga 6 / Colonna 8 → 5 (Naked Single)
  37. Riga 6 / Colonna 5 → 3 (Full House)
  38. Riga 5 / Colonna 5 → 5 (Full House)
  39. Bivalue Universal Grave + 1 => r9c9<>8, r9c9<>9
  40. Riga 9 / Colonna 9 → 4 (Naked Single)
  41. Riga 5 / Colonna 9 → 9 (Naked Single)
  42. Riga 8 / Colonna 9 → 8 (Full House)
  43. Riga 9 / Colonna 4 → 3 (Naked Single)
  44. Riga 2 / Colonna 4 → 4 (Full House)
  45. Riga 2 / Colonna 6 → 3 (Full House)
  46. Riga 8 / Colonna 6 → 4 (Full House)
  47. Riga 9 / Colonna 8 → 1 (Naked Single)
  48. Riga 5 / Colonna 7 → 7 (Naked Single)
  49. Riga 5 / Colonna 8 → 4 (Full House)
  50. Riga 7 / Colonna 8 → 7 (Full House)
  51. Riga 7 / Colonna 5 → 1 (Full House)
  52. Riga 8 / Colonna 5 → 7 (Naked Single)
  53. Riga 9 / Colonna 5 → 8 (Full House)
  54. Riga 9 / Colonna 7 → 9 (Full House)
  55. Riga 8 / Colonna 7 → 3 (Full House)
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