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

Questo puzzle di sudoku ha 47 passaggi e viene risolto utilizzando tecniche di Naked Single, Full House, Hidden Single, Locked Pair, Locked Candidates Type 1 (Pointing), Uniqueness Test 1, Hidden Rectangle, AIC, Naked Triple, Hidden Pair, Uniqueness Test 4, Empty Rectangle, Uniqueness Test 6, Sue de Coq, 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 2 / Colonna 3 → 4 (Naked Single)
  2. Riga 2 / Colonna 2 → 9 (Full House)
  3. Riga 1 / Colonna 4 → 8 (Hidden Single)
  4. Riga 5 / Colonna 4 → 4 (Hidden Single)
  5. Riga 4 / Colonna 1 → 9 (Hidden Single)
  6. Riga 1 / Colonna 5 → 6 (Hidden Single)
  7. Riga 3 / Colonna 8 → 6 (Hidden Single)
  8. Riga 1 / Colonna 7 → 9 (Hidden Single)
  9. Riga 8 / Colonna 9 → 4 (Hidden Single)
  10. Riga 1 / Colonna 9 → 3 (Naked Single)
  11. Riga 1 / Colonna 8 → 4 (Full House)
  12. Locked Pair: 2,8 in r8c13 => r8c46,r9c3<>2, r8c6,r9c3<>8
  13. Locked Candidates Type 1 (Pointing): 1 in b3 => r56c7<>1
  14. Locked Candidates Type 1 (Pointing): 2 in b3 => r57c7<>2
  15. Uniqueness Test 1: 1/2 in r2c47,r3c47 => r2c4<>1, r2c4<>2
  16. Uniqueness Test 1: 2/8 in r5c13,r8c13 => r5c3<>2, r5c3<>8
  17. Hidden Rectangle: 1/4 in r7c25,r9c25 => r9c5<>1
  18. AIC: 1 1- r2c5 -3- r2c4 =3= r9c4 =2= r3c4 =1= r3c7 -1 => r2c7,r3c4<>1
  19. Riga 2 / Colonna 7 → 2 (Naked Single)
  20. Riga 3 / Colonna 7 → 1 (Full House)
  21. Riga 3 / Colonna 4 → 2 (Full House)
  22. Naked Triple: 1,3,4 in r79c5,r9c4 => r79c6<>1
  23. Hidden Pair: 1,4 in r7c25 => r7c5<>3
  24. Locked Candidates Type 1 (Pointing): 3 in b8 => r9c8<>3
  25. Uniqueness Test 1: 2/8 in r7c68,r9c68 => r7c8<>2, r7c8<>8
  26. Riga 7 / Colonna 8 → 3 (Naked Single)
  27. Uniqueness Test 4: 1/4 in r7c25,r9c25 => r9c2<>1
  28. Empty Rectangle: 1 in b5 (r9c34) => r6c3<>1
  29. Uniqueness Test 6: 1/3 in r2c45,r9c45 => r2c4,r9c5<>3
  30. Riga 2 / Colonna 4 → 5 (Naked Single)
  31. Riga 9 / Colonna 5 → 4 (Naked Single)
  32. Riga 2 / Colonna 6 → 1 (Naked Single)
  33. Riga 2 / Colonna 5 → 3 (Full House)
  34. Riga 7 / Colonna 5 → 1 (Full House)
  35. Riga 8 / Colonna 4 → 9 (Naked Single)
  36. Riga 9 / Colonna 2 → 6 (Naked Single)
  37. Riga 6 / Colonna 6 → 9 (Naked Single)
  38. Riga 7 / Colonna 2 → 4 (Naked Single)
  39. Riga 9 / Colonna 4 → 3 (Naked Single)
  40. Riga 8 / Colonna 6 → 5 (Naked Single)
  41. Riga 9 / Colonna 3 → 1 (Naked Single)
  42. Riga 5 / Colonna 3 → 3 (Naked Single)
  43. Riga 6 / Colonna 7 → 3 (Hidden Single)
  44. Sue de Coq: r5c79 - {1278} (r5c2 - {17}, r46c8 - {258}) => r4c9<>2
  45. Discontinuous Nice Loop: 1 r4c2 -1- r5c2 =1= r5c9 =2= r4c8 =5= r4c2 => r4c2<>1
  46. Discontinuous Nice Loop: 7 r6c9 -7- r6c4 -1- r4c4 =1= r4c9 =6= r6c9 => r6c9<>7
  47. Give Up: Don't know how to proceed!
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