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Sudoku Solve Path

GradoTough Livello4 (precedente: 4)
Punteggio finale6.7 Punteggio precedente196
Indizi23 # Passi31
Versione generatoreversion 3.74, 25-Jan-2026
Soluzione876294315934158672152376984621839457548761239793542168365927841489615723217483596
FileD:\inetpub\webs\ruggeriinfo\public\sudoku\json\L3_2026_01_25_16_00_37441659.json

Passi risolutivi (31)

Passo 1 Hidden Singles valore: 6 categoria doc: Getting_Started
1 in C1 is last in row/column/box
1 in E6 is last in column
1 in G9 is last in row
1 in H5 is last in box
2 in J1 is last in row
4 in B3 is last in column/box
Passo 2 Hidden Singles valore: 5.4 categoria doc: Getting_Started
2 in D2 is last in column/box
5 in G3 is last in column
Passo 3 Hidden Singles valore: 5.1 categoria doc: Getting_Started
9 in G4 is last in row
9 in H3 is last in column/box
Passo 4 Hidden Singles valore: 4.9 categoria doc: Getting_Started
4 in G8 is last in row
7 in J3 is last in box
Passo 5 Naked Singles valore: 2.3 categoria doc: Getting_Started
Last candidate 8 in E3 changed to solution
Passo 6 Naked Singles valore: 2.2 categoria doc: Getting_Started
Last candidate 3 in F3 changed to solution
Passo 7 Hidden Singles valore: 4.3 categoria doc: Getting_Started
8 in A1 is last in column
8 in H2 is last in box
Passo 8 Naked Singles valore: 2 categoria doc: Getting_Started
Last candidate 5 in C2 changed to solution Last candidate 6 in H4 changed to solution
Passo 9 Naked Singles valore: 1.8 categoria doc: Getting_Started
Last candidate 3 in B2 changed to solution
Passo 10 Naked Singles valore: 1.8 categoria doc: Getting_Started
Last candidate 6 in G2 changed to solution
Passo 11 Naked Singles valore: 1.7 categoria doc: Getting_Started
Last candidate 3 in G1 changed to solution
Passo 12 Hidden Singles valore: 3.3 categoria doc: Getting_Started
5 in A9 is last in column/box
5 in B5 is last in row
6 in J9 is last in row/box
Passo 13 Hidden Singles valore: 2.7 categoria doc: Getting_Started
3 in A7 is last in row/box
3 in H9 is last in column
5 in F4 is last in row/column/box
7 in C5 is last in box
Passo 14 Hidden Pair valore: 23.4 categoria doc: Hidden_Candidates
Hidden Pair 6/8 in Box 2, on cells {B6|C6}
- removes 4/9 from C6
Passo 15 Naked Pair valore: 11 categoria doc: Naked_Candidates
Naked Pair 6/8 on cells {B6|C6} means
- 6/8 can be removed from D6
- 6/8 can be removed from F6
- 8 can be removed from J6
Passo 16 Naked Pair valore: 10.7 categoria doc: Naked_Candidates
Naked Pair 6/8 on cells {C6|C8} means
- 6 can be removed from C7
- 8 can be removed from C9
Passo 17 Pointing Pairs valore: 31.8 categoria doc: Intersection_Removal
Pair: between Box 3 and Col 7:
- 8 can be removed from F8
Passo 18 Line/Box Reduction valore: 40.7 categoria doc: Intersection_Removal
Triple: between Col 9 and Box 5:
- 7 can be removed from D7
- 7 can be removed from E7
- 7 can be removed from F8
Passo 19 Unique Rectangle Type 1 valore: 39.6 categoria doc: Unique_Rectangle
Uniqueness Type 1 removing 6/8 at B8 because of B6,C6,C8
Last candidate 7 in B8 changed to solution
Passo 20 Naked Singles valore: 0.9 categoria doc: Getting_Started
Last candidate 6 in B7 changed to solution Last candidate 2 in H8 changed to solution
Passo 21 Naked Singles valore: 0.8 categoria doc: Getting_Started
Last candidate 8 in B6 changed to solution Last candidate 8 in C8 changed to solution Last candidate 6 in F8 changed to solution Last candidate 7 in H7 changed to solution
Passo 22 Naked Singles valore: 0.7 categoria doc: Getting_Started
Last candidate 6 in C6 changed to solution Last candidate 7 in F1 changed to solution
Passo 23 Naked Singles valore: 0.7 categoria doc: Getting_Started
Last candidate 6 in D1 changed to solution
Passo 24 Hidden Singles valore: 1.2 categoria doc: Getting_Started
2 in E7 is last in column/box
2 in F6 is last in row
6 in E5 is last in row/column/box
Passo 25 Naked Singles valore: 0.6 categoria doc: Getting_Started
Last candidate 7 in E4 changed to solution
Passo 26 Naked Singles valore: 0.5 categoria doc: Getting_Started
Last candidate 9 in E9 changed to solution
Passo 27 Naked Singles valore: 0.5 categoria doc: Getting_Started
Last candidate 4 in C9 changed to solution Last candidate 4 in D7 changed to solution
Passo 28 Naked Singles valore: 0.3 categoria doc: Getting_Started
Last candidate 9 in C7 changed to solution Last candidate 8 in D4 changed to solution Last candidate 8 in F9 changed to solution
Passo 29 Naked Singles valore: 0.2 categoria doc: Getting_Started
Last candidate 7 in D9 changed to solution Last candidate 4 in F5 changed to solution Last candidate 4 in J4 changed to solution
Passo 30 Naked Singles valore: 0.2 categoria doc: Getting_Started
Last candidate 2 in A4 changed to solution Last candidate 9 in A5 changed to solution Last candidate 3 in J6 changed to solution
Passo 31 Naked Singles valore: 0.1 categoria doc: Getting_Started
Last candidate 4 in A6 changed to solution Last candidate 3 in D5 changed to solution Last candidate 9 in D6 changed to solution Last candidate 8 in J5 changed to solution