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File jsonD:\inetpub\webs\ruggeriinfo\public\sudoku\json\L3_15_06_2026_2026_07_13_15_38_15115391.json
File pdfD:/inetpub/webs/ruggeriinfo/public/sudoku/pdf/L3_15_06_2026_2026_07_13_15_38_15115391_6_5.pdf

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Sudoku Solve Path

GradoTough Livello4 (precedente: 4)
Punteggio finale6.5 Punteggio precedente228
Indizi24 # Passi34
Versione generatoreversion 4.19, 04-Jul-2026
Soluzione837569421926341785541782693489176352263895174715423869672914538158237946394658217
FileD:\inetpub\webs\ruggeriinfo\public\sudoku\json\L3_15_06_2026_2026_07_13_15_38_15115391.json

Passi risolutivi (34)

Passo 1 Hidden Singles valore: 5.6 categoria doc: Getting_Started
4 in E9 is last in row/box
6 in J4 is last in column/box
9 in C8 is last in column
9 in H7 is last in row/box
Passo 2 Naked Singles valore: 1 categoria doc: Getting_Started
Last candidate 1 in J8 changed to solution
Passo 3 Hidden Singles valore: 5 categoria doc: Getting_Started
1 in D4 is last in column
3 in G8 is last in column
Passo 4 Naked Singles valore: 2.2 categoria doc: Getting_Started
Last candidate 8 in D2 changed to solution
Passo 5 Naked Singles valore: 2.1 categoria doc: Getting_Started
Last candidate 6 in E2 changed to solution
Passo 6 Naked Singles valore: 2.1 categoria doc: Getting_Started
Last candidate 1 in F2 changed to solution
Passo 7 Naked Singles valore: 2 categoria doc: Getting_Started
Last candidate 5 in H2 changed to solution
Passo 8 Hidden Singles valore: 3.9 categoria doc: Getting_Started
6 in F8 is last in column
8 in F7 is last in box
Passo 9 Naked Singles valore: 1.8 categoria doc: Getting_Started
Last candidate 2 in J7 changed to solution
Passo 10 Hidden Singles valore: 3.6 categoria doc: Getting_Started
2 in D9 is last in column/box
Passo 11 Hidden Singles valore: 3.4 categoria doc: Getting_Started
2 in G3 is last in column
5 in D8 is last in row
Passo 12 Naked Singles valore: 1.6 categoria doc: Getting_Started
Last candidate 7 in E8 changed to solution
Passo 13 Hidden Singles valore: 3.1 categoria doc: Getting_Started
4 in J3 is last in box
Passo 14 Naked Singles valore: 1.4 categoria doc: Getting_Started
Last candidate 8 in J6 changed to solution
Passo 15 Naked Singles valore: 1.4 categoria doc: Getting_Started
Last candidate 4 in G6 changed to solution
Passo 16 Naked Singles valore: 1.3 categoria doc: Getting_Started
Last candidate 1 in G5 changed to solution
Passo 17 Naked Singles valore: 1.2 categoria doc: Getting_Started
Last candidate 6 in G1 changed to solution
Passo 18 Naked Singles valore: 1.1 categoria doc: Getting_Started
Last candidate 5 in G7 changed to solution
Last candidate 1 in H1 changed to solution
Passo 19 Naked Singles valore: 1.1 categoria doc: Getting_Started
Last candidate 8 in G9 changed to solution
Last candidate 8 in H3 changed to solution
Passo 20 Naked Singles valore: 1 categoria doc: Getting_Started
Last candidate 6 in H9 changed to solution
Passo 21 Hidden Singles valore: 2 categoria doc: Getting_Started
1 in C3 is last in row/column/box
Passo 22 Hidden Singles valore: 1.9 categoria doc: Getting_Started
6 in B3 is last in column/box
6 in C7 is last in row
Passo 23 Naked Pair valore: 8.7 categoria doc: Naked_Candidates
Naked Pair 3/7 on cells {F6|H6} means
- 3/7 can be removed from A6
Passo 24 Line/Unit Reduction valore: 33.6 categoria doc: Intersection_Removal
Line/Box Reduction: 3s in box 2 remove the following in the same box:
- 3 can be removed from B5
- 3 can be removed from C5
Passo 25 Line/Unit Reduction valore: 32.5 categoria doc: Intersection_Removal
Line/Box Reduction: 5s in box 2 remove the following in the same box:
- 5 can be removed from B4
- 5 can be removed from C4
Passo 26 Line/Unit Reduction valore: 31.4 categoria doc: Intersection_Removal
Line/Box Reduction: 7s in box 2 remove the following in the same box:
- 7 can be removed from B5
- 7 can be removed from C5
Passo 27 Unique Rectangle Type 1 valore: 30.3 categoria doc: Unique_Rectangle
Uniqueness Type 1 removing 3/7 at F5 because of F6,H6,H5
Last candidate 2 in F5 changed to solution
Passo 28 Naked Singles valore: 0.6 categoria doc: Getting_Started
Last candidate 7 in F1 changed to solution
Passo 29 Naked Singles valore: 0.5 categoria doc: Getting_Started
Last candidate 5 in C1 changed to solution
Last candidate 9 in D3 changed to solution
Last candidate 3 in F6 changed to solution
Passo 30 Naked Singles valore: 0.3 categoria doc: Getting_Started
Last candidate 7 in A3 changed to solution
Last candidate 9 in B1 changed to solution
Last candidate 3 in C9 changed to solution
Last candidate 7 in D5 changed to solution
Last candidate 2 in E1 changed to solution
Last candidate 7 in H6 changed to solution
Passo 31 Naked Singles valore: 0.2 categoria doc: Getting_Started
Last candidate 4 in A7 changed to solution
Last candidate 4 in B5 changed to solution
Last candidate 5 in B9 changed to solution
Last candidate 4 in C2 changed to solution
Last candidate 3 in H5 changed to solution
Passo 32 Naked Singles valore: 0.1 categoria doc: Getting_Started
Last candidate 3 in A2 changed to solution
Last candidate 7 in B7 changed to solution
Last candidate 8 in C5 changed to solution
Passo 33 Naked Singles valore: 0 categoria doc: Getting_Started
Last candidate 5 in A4 changed to solution
Last candidate 3 in B4 changed to solution
Last candidate 7 in C4 changed to solution
Last candidate 9 in E5 changed to solution
Passo 34 Naked Singles valore: 0 categoria doc: Getting_Started
Last candidate 9 in A6 changed to solution
Last candidate 8 in E4 changed to solution
Last candidate 5 in E6 changed to solution