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

Questo puzzle di sudoku ha 56 passaggi e viene risolto utilizzando tecniche di Locked Candidates Type 1 (Pointing), Skyscraper, undefined, Uniqueness Test 4, Sue de Coq, Empty Rectangle, Naked Single, Hidden Single, Discontinuous Nice Loop, Full House, AIC, Naked Pair.

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

Passaggi della soluzione:

  1. Locked Candidates Type 1 (Pointing): 1 in b9 => r2c7<>1
  2. Skyscraper: 7 in r1c6,r4c4 (connected by r14c7) => r23c4,r5c6<>7
  3. Skyscraper: 8 in r2c7,r3c5 (connected by r8c57) => r2c4,r3c89<>8
  4. W-Wing: 2/4 in r6c4,r9c6 connected by 4 in r2c46 => r5c6,r9c4<>2
  5. XY-Wing: 4/5/2 in r14c5,r6c4 => r3c4,r5c5<>2
  6. Uniqueness Test 4: 1/5 in r2c38,r3c38 => r23c8<>5
  7. Sue de Coq: r3c456 - {23578} (r3c1 - {37}, r1c5 - {25}) => r1c6<>2, r12c6,r2c4<>5, r3c9<>7
  8. Empty Rectangle: 5 in b6 (r1c58) => r5c5<>5
  9. Riga 5 / Colonna 5 → 3 (Naked Single)
  10. Riga 7 / Colonna 6 → 3 (Hidden Single)
  11. Locked Candidates Type 1 (Pointing): 6 in b8 => r8c79<>6
  12. Discontinuous Nice Loop: 8/9 r2c8 =1= r2c3 =5= r2c9 =7= r5c9 -7- r4c7 -6- r7c7 =6= r7c9 -6- r3c9 =6= r3c8 =1= r2c8 => r2c8<>8, r2c8<>9
  13. Riga 2 / Colonna 8 → 1 (Naked Single)
  14. Riga 2 / Colonna 3 → 5 (Naked Single)
  15. Riga 3 / Colonna 3 → 1 (Full House)
  16. AIC: 4 4- r2c4 -3- r2c1 -7- r2c9 =7= r5c9 =5= r3c9 -5- r1c8 =5= r1c5 -5- r4c5 -4 => r46c4<>4
  17. Riga 6 / Colonna 4 → 2 (Naked Single)
  18. Riga 4 / Colonna 5 → 4 (Hidden Single)
  19. Naked Pair: 4,8 in r68c9 => r29c9<>8, r9c9<>4
  20. Riga 2 / Colonna 7 → 8 (Hidden Single)
  21. Riga 8 / Colonna 7 → 1 (Naked Single)
  22. Riga 7 / Colonna 5 → 1 (Hidden Single)
  23. Riga 9 / Colonna 6 → 2 (Hidden Single)
  24. Riga 9 / Colonna 9 → 9 (Naked Single)
  25. Riga 2 / Colonna 9 → 7 (Naked Single)
  26. Riga 2 / Colonna 1 → 3 (Naked Single)
  27. Riga 3 / Colonna 1 → 7 (Full House)
  28. Riga 2 / Colonna 4 → 4 (Naked Single)
  29. Riga 2 / Colonna 6 → 9 (Full House)
  30. Riga 3 / Colonna 6 → 5 (Naked Single)
  31. Riga 9 / Colonna 4 → 8 (Naked Single)
  32. Riga 9 / Colonna 8 → 4 (Full House)
  33. Riga 1 / Colonna 6 → 7 (Naked Single)
  34. Riga 1 / Colonna 5 → 2 (Naked Single)
  35. Riga 5 / Colonna 6 → 6 (Naked Single)
  36. Riga 8 / Colonna 6 → 4 (Full House)
  37. Riga 3 / Colonna 4 → 3 (Naked Single)
  38. Riga 3 / Colonna 5 → 8 (Full House)
  39. Riga 8 / Colonna 5 → 5 (Full House)
  40. Riga 8 / Colonna 4 → 6 (Full House)
  41. Riga 8 / Colonna 9 → 8 (Full House)
  42. Riga 6 / Colonna 8 → 8 (Naked Single)
  43. Riga 6 / Colonna 9 → 4 (Full House)
  44. Riga 1 / Colonna 7 → 9 (Naked Single)
  45. Riga 1 / Colonna 8 → 5 (Full House)
  46. Riga 4 / Colonna 8 → 6 (Naked Single)
  47. Riga 3 / Colonna 8 → 2 (Naked Single)
  48. Riga 3 / Colonna 9 → 6 (Full House)
  49. Riga 5 / Colonna 8 → 9 (Full House)
  50. Riga 4 / Colonna 7 → 7 (Naked Single)
  51. Riga 4 / Colonna 4 → 5 (Full House)
  52. Riga 5 / Colonna 4 → 7 (Full House)
  53. Riga 7 / Colonna 9 → 2 (Naked Single)
  54. Riga 5 / Colonna 9 → 5 (Full House)
  55. Riga 5 / Colonna 7 → 2 (Full House)
  56. Riga 7 / Colonna 7 → 6 (Full House)
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