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File jsonD:\inetpub\webs\ruggeriinfo\public\sudoku\json\L3_2026_01_25_16_09_20524618.json
File pdfD:/inetpub/webs/ruggeriinfo/public/sudoku/pdf/L3_2026_01_25_16_09_20524618_7_2.pdf

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Sudoku Solve Path

GradoTough Livello4 (precedente: 4)
Punteggio finale7.2 Punteggio precedente117
Indizi24 # Passi24
Versione generatoreversion 3.74, 25-Jan-2026
Soluzione326179548859436712147582369913847256472653981568921473735218694684395127291764835
FileD:\inetpub\webs\ruggeriinfo\public\sudoku\json\L3_2026_01_25_16_09_20524618.json

Passi risolutivi (24)

Passo 1 Hidden Singles valore: 5.7 categoria doc: Getting_Started
2 in A2 is last in row
2 in B9 is last in column
2 in H8 is last in row/box
8 in C5 is last in row/box
8 in E8 is last in row/column/box
Passo 2 Hidden Singles valore: 5 categoria doc: Getting_Started
2 in E3 is last in column/box
2 in F5 is last in row
3 in A1 is last in row/box
6 in B6 is last in box
6 in J5 is last in column
Passo 3 Hidden Singles valore: 4.4 categoria doc: Getting_Started
4 in B4 is last in box
5 in A7 is last in row
5 in B2 is last in box
Passo 4 Naked Singles valore: 2 categoria doc: Getting_Started
Last candidate 9 in B3 changed to solution
Passo 5 Hidden Singles valore: 3.8 categoria doc: Getting_Started
5 in H6 is last in row
Passo 6 Hidden Singles valore: 3.6 categoria doc: Getting_Started
8 in G6 is last in column/box
8 in H2 is last in row
Passo 7 Hidden Singles valore: 3.5 categoria doc: Getting_Started
6 in H1 is last in row/box
Passo 8 Naked Pair valore: 16.6 categoria doc: Naked_Candidates
Naked Pair 1/7 on cells {B7|B8} means
- 1 can be removed from C8
- 1 can be removed from C9
Passo 9 Pointing Pairs valore: 49.5 categoria doc: Intersection_Removal
Pair: between Box 7 and Row G:
- 7 can be removed from G5
Passo 10 Line/Box Reduction valore: 63.3 categoria doc: Intersection_Removal
Pair: between Col 7 and Box 5:
- 9 can be removed from D8
- 9 can be removed from D9
- 9 can be removed from E9
- 9 can be removed from F8
- 9 can be removed from F9
Passo 11 Chute Remote Pair valore: 77.7 categoria doc: Chute_Remote_Pair
7 cannot be set in the yellow cells {G5,H5,J5} and with the Remote Pair in A6 and F4 it means:
- 9 can be removed from A4
- 9 can be removed from D6
Passo 12 Hidden Singles valore: 2.9 categoria doc: Getting_Started
9 in A6 is last in row/column/box
9 in D1 is last in row
9 in F4 is last in column/box
Passo 13 Hidden Singles valore: 2.7 categoria doc: Getting_Started
9 in E7 is last in row/column/box
Passo 14 Chute Remote Pair valore: 64.6 categoria doc: Chute_Remote_Pair
4 cannot be set in the yellow cells {J1,J2,J3} and with the Remote Pair in G5 and H7 it means:
- 1 can be removed from G8
- 1 can be removed from G9
- 1 can be removed from H4
Last candidate 3 in H4 changed to solution
Passo 15 Naked Singles valore: 1.3 categoria doc: Getting_Started
Last candidate 4 in H3 changed to solution Last candidate 7 in J4 changed to solution
Passo 16 Naked Singles valore: 1.1 categoria doc: Getting_Started
Last candidate 1 in A4 changed to solution Last candidate 3 in D3 changed to solution Last candidate 7 in G1 changed to solution Last candidate 1 in H7 changed to solution Last candidate 4 in J6 changed to solution
Passo 17 Naked Singles valore: 0.9 categoria doc: Getting_Started
Last candidate 7 in A5 changed to solution Last candidate 7 in B7 changed to solution Last candidate 7 in D6 changed to solution Last candidate 3 in G2 changed to solution Last candidate 1 in G5 changed to solution
Passo 18 Naked Singles valore: 0.7 categoria doc: Getting_Started
Last candidate 1 in B8 changed to solution Last candidate 4 in F7 changed to solution Last candidate 9 in G8 changed to solution
Passo 19 Naked Singles valore: 0.6 categoria doc: Getting_Started
Last candidate 6 in C8 changed to solution Last candidate 5 in F1 changed to solution Last candidate 4 in G9 changed to solution
Passo 20 Naked Singles valore: 0.5 categoria doc: Getting_Started
Last candidate 9 in C9 changed to solution Last candidate 5 in D8 changed to solution
Passo 21 Naked Singles valore: 0.4 categoria doc: Getting_Started
Last candidate 4 in D5 changed to solution Last candidate 1 in E9 changed to solution Last candidate 3 in J8 changed to solution
Passo 22 Naked Singles valore: 0.2 categoria doc: Getting_Started
Last candidate 6 in D9 changed to solution Last candidate 4 in E1 changed to solution Last candidate 5 in E5 changed to solution Last candidate 7 in F8 changed to solution Last candidate 5 in J9 changed to solution
Passo 23 Naked Singles valore: 0.1 categoria doc: Getting_Started
Last candidate 1 in C1 changed to solution Last candidate 1 in D2 changed to solution Last candidate 7 in E2 changed to solution Last candidate 6 in F2 changed to solution Last candidate 3 in F9 changed to solution
Passo 24 Naked Singles valore: 0 categoria doc: Getting_Started
Last candidate 4 in C2 changed to solution