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

Questo puzzle di sudoku ha 20 passaggi e viene risolto utilizzando tecniche di Naked Single, Full House, Hidden Single, Locked Candidates Type 1 (Pointing), Give Up.

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

Passaggi della soluzione:

  1. Riga 6 / Colonna 5 → 9 (Naked Single)
  2. Riga 1 / Colonna 7 → 9 (Naked Single)
  3. Riga 6 / Colonna 4 → 8 (Naked Single)
  4. Riga 3 / Colonna 7 → 3 (Naked Single)
  5. Riga 4 / Colonna 7 → 8 (Naked Single)
  6. Riga 6 / Colonna 1 → 5 (Naked Single)
  7. Riga 6 / Colonna 2 → 2 (Naked Single)
  8. Riga 6 / Colonna 8 → 3 (Full House)
  9. Riga 9 / Colonna 7 → 4 (Naked Single)
  10. Riga 8 / Colonna 7 → 2 (Full House)
  11. Riga 1 / Colonna 2 → 7 (Hidden Single)
  12. Riga 4 / Colonna 3 → 1 (Hidden Single)
  13. Riga 5 / Colonna 9 → 2 (Hidden Single)
  14. Riga 9 / Colonna 2 → 1 (Hidden Single)
  15. Riga 4 / Colonna 8 → 5 (Hidden Single)
  16. Riga 3 / Colonna 3 → 2 (Hidden Single)
  17. Locked Candidates Type 1 (Pointing): 6 in b3 => r78c9<>6
  18. Locked Candidates Type 1 (Pointing): 6 in b5 => r23789c6<>6
  19. Locked Candidates Type 1 (Pointing): 7 in b5 => r3789c6<>7
  20. Give Up: Don't know how to proceed!
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