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File jsonD:\inetpub\webs\ruggeriinfo\public\sudoku\json\L3_2026_01_25_16_11_19143934.json
File pdfD:/inetpub/webs/ruggeriinfo/public/sudoku/pdf/L3_2026_01_25_16_11_19143934_6_5.pdf

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Sudoku Solve Path

GradoTough Livello4 (precedente: 4)
Punteggio finale6.5 Punteggio precedente145
Indizi27 # Passi25
Versione generatoreversion 3.74, 25-Jan-2026
Soluzione376985412485231769912476853238597641159642387647318925764123598891754236523869174
FileD:\inetpub\webs\ruggeriinfo\public\sudoku\json\L3_2026_01_25_16_11_19143934.json

Passi risolutivi (25)

Passo 1 Naked Singles valore: 0 categoria doc: Getting_Started
Last candidate 4 in C4 changed to solution Last candidate 3 in C9 changed to solution Last candidate 8 in H1 changed to solution
Passo 2 Naked Singles valore: 2.4 categoria doc: Getting_Started
Last candidate 4 in B1 changed to solution Last candidate 7 in C5 changed to solution
Passo 3 Naked Singles valore: 2.3 categoria doc: Getting_Started
Last candidate 8 in B2 changed to solution Last candidate 2 in D1 changed to solution
Passo 4 Naked Singles valore: 2.1 categoria doc: Getting_Started
Last candidate 2 in C3 changed to solution Last candidate 7 in G1 changed to solution
Passo 5 Naked Singles valore: 1.9 categoria doc: Getting_Started
Last candidate 1 in C2 changed to solution Last candidate 1 in E1 changed to solution
Passo 6 Naked Singles valore: 1.8 categoria doc: Getting_Started
Last candidate 7 in A2 changed to solution Last candidate 8 in C7 changed to solution
Passo 7 Naked Singles valore: 1.7 categoria doc: Getting_Started
Last candidate 6 in A3 changed to solution
Passo 8 Hidden Singles valore: 2.8 categoria doc: Getting_Started
1 in F5 is last in row/column/box
2 in F8 is last in row/column/box
2 in G5 is last in row/column/box
2 in J2 is last in row/column/box
3 in B5 is last in row/box
4 in G3 is last in row/box
6 in D7 is last in column
7 in J8 is last in row/box
Passo 9 Hidden Singles valore: 2.3 categoria doc: Getting_Started
1 in A8 is last in column
1 in J7 is last in row/box
Passo 10 Hidden Singles valore: 2.1 categoria doc: Getting_Started
4 in A7 is last in row/box
4 in D8 is last in column
Passo 11 Hidden Singles valore: 1.9 categoria doc: Getting_Started
4 in F2 is last in row/column/box
8 in E8 is last in column/box
Passo 12 Hidden Singles valore: 1.8 categoria doc: Getting_Started
3 in E7 is last in box
Passo 13 Chute Remote Pair valore: 41.3 categoria doc: Chute_Remote_Pair
5 cannot be set in the yellow cells {G4,H4,J4} and with the Remote Pair in A6 and D5 it means:
- 9 can be removed from F6
Passo 14 Pointing Pairs valore: 23.9 categoria doc: Intersection_Removal
Pair: between Box 5 and Row D:
- 9 can be removed from D2
- 9 can be removed from D3
Passo 15 Y-Wing valore: 62.7 categoria doc: Y_Wing_Strategy
Y-Wing pattern. Hinge: D2 (3/5), wings D5 H2, therefore
- 9 can be removed from H5
Last candidate 5 in H5 changed to solution
Passo 16 Naked Singles valore: 0.7 categoria doc: Getting_Started
Last candidate 9 in D5 changed to solution
Passo 17 Hidden Singles valore: 1.4 categoria doc: Getting_Started
5 in G7 is last in row/box
Passo 18 Naked Singles valore: 0.7 categoria doc: Getting_Started
Last candidate 9 in F7 changed to solution
Passo 19 Unique Rectangle Type 1 valore: 23.1 categoria doc: Unique_Rectangle
Uniqueness Type 1 removing 6/9 at H8 because of B8,B9,H9
Last candidate 3 in H8 changed to solution
Passo 20 Naked Singles valore: 0.5 categoria doc: Getting_Started
Last candidate 9 in G8 changed to solution Last candidate 9 in H2 changed to solution
Passo 21 Naked Singles valore: 0.4 categoria doc: Getting_Started
Last candidate 6 in B8 changed to solution Last candidate 5 in E2 changed to solution Last candidate 3 in G6 changed to solution Last candidate 6 in H9 changed to solution Last candidate 3 in J3 changed to solution
Passo 22 Naked Singles valore: 0.3 categoria doc: Getting_Started
Last candidate 9 in B9 changed to solution Last candidate 3 in D2 changed to solution Last candidate 8 in D3 changed to solution Last candidate 7 in E9 changed to solution
Passo 23 Naked Singles valore: 0.2 categoria doc: Getting_Started
Last candidate 5 in D4 changed to solution Last candidate 9 in E3 changed to solution Last candidate 7 in F3 changed to solution Last candidate 5 in F9 changed to solution
Passo 24 Naked Singles valore: 0.1 categoria doc: Getting_Started
Last candidate 9 in A4 changed to solution Last candidate 8 in F6 changed to solution
Passo 25 Naked Singles valore: 0 categoria doc: Getting_Started
Last candidate 5 in A6 changed to solution Last candidate 8 in J4 changed to solution Last candidate 9 in J6 changed to solution