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

Questo puzzle di sudoku ha 45 passaggi e viene risolto utilizzando tecniche di Naked Single, Full House, Hidden Single, Locked Candidates Type 1 (Pointing), Uniqueness Test 1, Hidden Rectangle, AIC, Naked Triple, Hidden Pair, Uniqueness Test 4, Empty Rectangle, Uniqueness Test 6, Discontinuous Nice Loop, Give Up.

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

Passaggi della soluzione:

  1. Riga 3 / Colonna 2 → 8 (Naked Single)
  2. Riga 2 / Colonna 3 → 4 (Naked Single)
  3. Riga 2 / Colonna 2 → 9 (Full House)
  4. Riga 8 / Colonna 1 → 2 (Naked Single)
  5. Riga 4 / Colonna 1 → 9 (Full House)
  6. Riga 8 / Colonna 3 → 8 (Naked Single)
  7. Riga 8 / Colonna 9 → 4 (Naked Single)
  8. Riga 1 / Colonna 4 → 8 (Hidden Single)
  9. Riga 5 / Colonna 4 → 4 (Hidden Single)
  10. Riga 1 / Colonna 5 → 6 (Hidden Single)
  11. Riga 1 / Colonna 9 → 3 (Naked Single)
  12. Riga 1 / Colonna 7 → 9 (Naked Single)
  13. Riga 1 / Colonna 8 → 4 (Full House)
  14. Riga 3 / Colonna 8 → 6 (Hidden Single)
  15. Riga 5 / Colonna 8 → 9 (Hidden Single)
  16. Locked Candidates Type 1 (Pointing): 1 in b3 => r56c7<>1
  17. Locked Candidates Type 1 (Pointing): 2 in b3 => r57c7<>2
  18. Uniqueness Test 1: 1/2 in r2c47,r3c47 => r2c4<>1, r2c4<>2
  19. Hidden Rectangle: 1/4 in r7c25,r9c25 => r9c5<>1
  20. AIC: 1 1- r2c5 -3- r2c4 =3= r9c4 =2= r3c4 =1= r3c7 -1 => r2c7,r3c4<>1
  21. Riga 2 / Colonna 7 → 2 (Naked Single)
  22. Riga 3 / Colonna 7 → 1 (Full House)
  23. Riga 3 / Colonna 4 → 2 (Full House)
  24. Naked Triple: 1,3,4 in r79c5,r9c4 => r79c6<>1
  25. Hidden Pair: 1,4 in r7c25 => r7c5<>3
  26. Locked Candidates Type 1 (Pointing): 3 in b8 => r9c8<>3
  27. Uniqueness Test 1: 2/8 in r7c68,r9c68 => r7c8<>2, r7c8<>8
  28. Riga 7 / Colonna 8 → 3 (Naked Single)
  29. Uniqueness Test 4: 1/4 in r7c25,r9c25 => r9c2<>1
  30. Empty Rectangle: 1 in b5 (r9c34) => r6c3<>1
  31. Uniqueness Test 6: 1/3 in r2c45,r9c45 => r2c4,r9c5<>3
  32. Riga 2 / Colonna 4 → 5 (Naked Single)
  33. Riga 9 / Colonna 5 → 4 (Naked Single)
  34. Riga 2 / Colonna 6 → 1 (Naked Single)
  35. Riga 2 / Colonna 5 → 3 (Full House)
  36. Riga 7 / Colonna 5 → 1 (Full House)
  37. Riga 8 / Colonna 4 → 9 (Naked Single)
  38. Riga 8 / Colonna 6 → 5 (Full House)
  39. Riga 9 / Colonna 2 → 6 (Naked Single)
  40. Riga 6 / Colonna 6 → 9 (Naked Single)
  41. Riga 7 / Colonna 2 → 4 (Naked Single)
  42. Riga 9 / Colonna 3 → 1 (Full House)
  43. Riga 9 / Colonna 4 → 3 (Naked Single)
  44. Discontinuous Nice Loop: 7 r6c9 -7- r5c7 -3- r5c3 =3= r6c3 =6= r6c9 => r6c9<>7
  45. Give Up: Don't know how to proceed!
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