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

Questo puzzle di sudoku ha 40 passaggi e viene risolto utilizzando tecniche di Hidden Single, undefined, Uniqueness Test 4, Finned Swordfish, Simple Colors Trap, Naked Pair, Naked Single, Full House.

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

Passaggi della soluzione:

  1. Riga 1 / Colonna 7 → 4 (Hidden Single)
  2. W-Wing: 7/5 in r6c5,r9c6 connected by 5 in r69c9 => r8c5<>7
  3. Riga 6 / Colonna 5 → 7 (Hidden Single)
  4. Uniqueness Test 4: 5/9 in r4c45,r8c45 => r48c4<>5
  5. Finned Swordfish: 5 r169 c489 fr9c6 => r7c4<>5
  6. Simple Colors Trap: 5 (r1c4,r4c5,r6c9,r9c6) / (r1c8,r4c7,r6c4,r8c5,r9c9) => r9c8<>5
  7. XY-Chain: 2 2- r1c1 -7- r1c4 -5- r6c4 -2- r6c9 -5- r9c9 -2 => r9c1<>2
  8. Riga 1 / Colonna 1 → 2 (Hidden Single)
  9. Riga 7 / Colonna 3 → 2 (Hidden Single)
  10. Naked Pair: 5,7 in r1c8,r3c7 => r2c78<>5, r2c78<>7
  11. 2-String Kite: 7 in r1c4,r7c7 (connected by r1c8,r3c7) => r7c4<>7
  12. Riga 7 / Colonna 4 → 1 (Naked Single)
  13. Riga 2 / Colonna 7 → 1 (Hidden Single)
  14. Riga 2 / Colonna 8 → 2 (Naked Single)
  15. Riga 4 / Colonna 7 → 2 (Hidden Single)
  16. Riga 6 / Colonna 9 → 5 (Full House)
  17. Riga 6 / Colonna 4 → 2 (Full House)
  18. Riga 9 / Colonna 9 → 2 (Full House)
  19. Riga 4 / Colonna 4 → 9 (Naked Single)
  20. Riga 4 / Colonna 5 → 5 (Full House)
  21. Riga 8 / Colonna 5 → 9 (Full House)
  22. Riga 8 / Colonna 4 → 7 (Naked Single)
  23. Riga 1 / Colonna 4 → 5 (Full House)
  24. Riga 9 / Colonna 6 → 5 (Full House)
  25. Riga 1 / Colonna 8 → 7 (Full House)
  26. Riga 3 / Colonna 7 → 5 (Full House)
  27. Riga 7 / Colonna 7 → 7 (Full House)
  28. Riga 7 / Colonna 2 → 5 (Full House)
  29. Riga 9 / Colonna 8 → 1 (Naked Single)
  30. Riga 8 / Colonna 8 → 5 (Full House)
  31. Riga 9 / Colonna 1 → 7 (Full House)
  32. Riga 8 / Colonna 2 → 4 (Naked Single)
  33. Riga 2 / Colonna 2 → 7 (Full House)
  34. Riga 3 / Colonna 1 → 8 (Naked Single)
  35. Riga 8 / Colonna 1 → 1 (Full House)
  36. Riga 8 / Colonna 3 → 8 (Full House)
  37. Riga 2 / Colonna 6 → 4 (Naked Single)
  38. Riga 2 / Colonna 3 → 5 (Full House)
  39. Riga 3 / Colonna 3 → 4 (Full House)
  40. Riga 3 / Colonna 6 → 7 (Full House)
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