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Sudoku Solve Path

GradoTough Livello4 (precedente: 4)
Punteggio finale7.1 Punteggio precedente162
Indizi24 # Passi27
Versione generatoreversion 3.74, 25-Jan-2026
Soluzione871254693596371842243689751657418239428936517319725486962543178784192365135867924
FileD:\inetpub\webs\ruggeriinfo\public\sudoku\json\L3_2026_01_25_16_09_50682934.json

Passi risolutivi (27)

Passo 1 Hidden Singles valore: 5.6 categoria doc: Getting_Started
3 in E5 is last in row/box
3 in J2 is last in column/box
4 in F7 is last in row/box
5 in E7 is last in row/box
6 in B3 is last in column/box
6 in C4 is last in row
8 in D6 is last in box
8 in E3 is last in row
Passo 2 Hidden Singles valore: 4.7 categoria doc: Getting_Started
4 in H3 is last in box
4 in J9 is last in row
Passo 3 Hidden Pair valore: 44.3 categoria doc: Hidden_Candidates
Hidden Pair 5/8 in Box 1, on cells {A1|B1}
- removes 1/7/9 from A1
- removes 1/2/7/9 from B1
Passo 4 Hidden Pair valore: 43.2 categoria doc: Hidden_Candidates
Hidden Pair 5/8 in Row G, on cells {G4|G9}
- removes 3 from G4
- removes 2/3/9 from G9
Passo 5 Hidden Singles valore: 4.3 categoria doc: Getting_Started
3 in G6 is last in row
Passo 6 Hidden Singles valore: 3.9 categoria doc: Getting_Started
2 in H6 is last in column
3 in A9 is last in row
3 in B4 is last in column/box
Passo 7 Hidden Singles valore: 3.5 categoria doc: Getting_Started
3 in H7 is last in row/column/box
7 in F4 is last in column
8 in A1 is last in row
Passo 8 Naked Singles valore: 1.6 categoria doc: Getting_Started
Last candidate 5 in B1 changed to solution
Passo 9 Hidden Singles valore: 3 categoria doc: Getting_Started
5 in A5 is last in row/box
7 in D3 is last in row/box
Passo 10 Hidden Singles valore: 2.8 categoria doc: Getting_Started
7 in B5 is last in column/box
Passo 11 Hidden Singles valore: 2.7 categoria doc: Getting_Started
7 in C7 is last in column
Passo 12 Hidden Singles valore: 2.5 categoria doc: Getting_Started
7 in A2 is last in row/column/box
Passo 13 Hidden Singles valore: 2.3 categoria doc: Getting_Started
4 in A6 is last in row
4 in C2 is last in column/box
Passo 14 Naked Pair valore: 11 categoria doc: Naked_Candidates
Naked Pair 1/2 on cells {D5|F5} means
- 1 can be removed from H5
- 1 can be removed from J5
Passo 15 Pointing Pairs valore: 32.6 categoria doc: Intersection_Removal
Pair: between Box 7 and Col 0:
- 1 can be removed from C1
Passo 16 Chute Remote Pair valore: 53 categoria doc: Chute_Remote_Pair
1 cannot be set in the yellow cells {C1,C2,C3} and with the Remote Pair in A8 and B6 it means:
- 9 can be removed from B7
- 9 can be removed from B9
Passo 17 Rectangle Elimination valore: 51.6 categoria doc: Rectangle_Elimination
If either +1[E2] or +1[A8] are ON then both are on because they are strongly linked through the hinge cell E8. If both are ON then this removes all 1s from box 1, so neither can be 1
Last candidate 9 in A8 changed to solution Last candidate 2 in E2 changed to solution
Passo 18 Naked Singles valore: 0.9 categoria doc: Getting_Started
Last candidate 1 in A3 changed to solution Last candidate 1 in E8 changed to solution
Passo 19 Naked Singles valore: 0.8 categoria doc: Getting_Started
Last candidate 9 in B2 changed to solution Last candidate 9 in F3 changed to solution
Passo 20 Naked Singles valore: 0.7 categoria doc: Getting_Started
Last candidate 1 in B6 changed to solution Last candidate 2 in C1 changed to solution Last candidate 1 in F2 changed to solution Last candidate 2 in G3 changed to solution
Passo 21 Naked Singles valore: 0.6 categoria doc: Getting_Started
Last candidate 9 in C6 changed to solution Last candidate 1 in C9 changed to solution Last candidate 2 in F5 changed to solution Last candidate 7 in G8 changed to solution
Passo 22 Naked Singles valore: 0.5 categoria doc: Getting_Started
Last candidate 1 in D5 changed to solution Last candidate 9 in G1 changed to solution Last candidate 6 in H8 changed to solution
Passo 23 Naked Singles valore: 0.4 categoria doc: Getting_Started
Last candidate 9 in H5 changed to solution Last candidate 1 in J1 changed to solution Last candidate 2 in J8 changed to solution
Passo 24 Naked Singles valore: 0.3 categoria doc: Getting_Started
Last candidate 7 in H1 changed to solution Last candidate 5 in H9 changed to solution Last candidate 8 in J4 changed to solution Last candidate 6 in J5 changed to solution
Passo 25 Naked Singles valore: 0.2 categoria doc: Getting_Started
Last candidate 5 in G4 changed to solution Last candidate 8 in G9 changed to solution Last candidate 1 in H4 changed to solution Last candidate 9 in J7 changed to solution
Passo 26 Naked Singles valore: 0.1 categoria doc: Getting_Started
Last candidate 2 in B9 changed to solution Last candidate 2 in D7 changed to solution
Passo 27 Naked Singles valore: 0 categoria doc: Getting_Started
Last candidate 8 in B7 changed to solution Last candidate 9 in D9 changed to solution