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

Questo puzzle di sudoku ha 31 passaggi e viene risolto utilizzando tecniche di Naked Single, Full House, Hidden Single, Locked Candidates Type 1 (Pointing), Uniqueness Test 4, Discontinuous Nice Loop, Give Up.

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

Passaggi della soluzione:

  1. Riga 4 / Colonna 3 → 1 (Naked Single)
  2. Riga 2 / Colonna 4 → 3 (Naked Single)
  3. Riga 5 / Colonna 5 → 3 (Naked Single)
  4. Riga 6 / Colonna 5 → 2 (Full House)
  5. Riga 8 / Colonna 6 → 2 (Naked Single)
  6. Riga 4 / Colonna 2 → 4 (Naked Single)
  7. Riga 4 / Colonna 7 → 2 (Naked Single)
  8. Riga 4 / Colonna 8 → 9 (Full House)
  9. Riga 6 / Colonna 2 → 7 (Naked Single)
  10. Riga 2 / Colonna 7 → 7 (Hidden Single)
  11. Riga 3 / Colonna 3 → 2 (Hidden Single)
  12. Riga 9 / Colonna 8 → 7 (Hidden Single)
  13. Riga 7 / Colonna 1 → 9 (Hidden Single)
  14. Riga 8 / Colonna 4 → 9 (Hidden Single)
  15. Riga 7 / Colonna 9 → 2 (Hidden Single)
  16. Riga 2 / Colonna 6 → 4 (Hidden Single)
  17. Riga 9 / Colonna 6 → 8 (Full House)
  18. Riga 9 / Colonna 3 → 3 (Naked Single)
  19. Riga 9 / Colonna 2 → 1 (Naked Single)
  20. Riga 7 / Colonna 2 → 8 (Full House)
  21. Riga 1 / Colonna 2 → 3 (Full House)
  22. Riga 9 / Colonna 4 → 5 (Naked Single)
  23. Riga 3 / Colonna 4 → 1 (Full House)
  24. Riga 9 / Colonna 5 → 4 (Full House)
  25. Riga 8 / Colonna 5 → 1 (Full House)
  26. Riga 1 / Colonna 1 → 1 (Hidden Single)
  27. Locked Candidates Type 1 (Pointing): 6 in b4 => r5c78<>6
  28. Uniqueness Test 4: 5/8 in r1c57,r3c57 => r13c7<>5
  29. Discontinuous Nice Loop: 3 r6c7 -3- r8c7 -5- r8c9 =5= r3c9 -5- r1c8 -6- r1c7 =6= r6c7 => r6c7<>3
  30. Discontinuous Nice Loop: 4 r6c8 -4- r7c8 -1- r7c7 =1= r5c7 =5= r8c7 =3= r8c9 -3- r6c9 =3= r6c8 => r6c8<>4
  31. Give Up: Don't know how to proceed!
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