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File jsonD:\inetpub\webs\ruggeriinfo\public\sudoku\json\L4_12_08_2026_2026_08_21_15_37_09709203.json
File pdfD:/inetpub/webs/ruggeriinfo/public/sudoku/pdf/L4_12_08_2026_2026_08_21_15_37_09709203_6_5.pdf

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Sudoku Solve Path

GradoTough Livello4 (precedente: 4)
Punteggio finale6.5 Punteggio precedente110
Indizi23 # Passi26
Versione generatoreversion 4.24, 18-Aug-2026
Soluzione217348569465921738839657412658273941324519876971864253582436197793185624146792385
FileD:\inetpub\webs\ruggeriinfo\public\sudoku\json\L4_12_08_2026_2026_08_21_15_37_09709203.json

Passi risolutivi (26)

Passo 1 Naked Singles valore: 1 categoria doc: Getting_Started
Last candidate 3 in D6 changed to solution
Passo 2 Hidden Singles valore: 5.7 categoria doc: Getting_Started
3 in G5 is last in column/box
4 in C7 is last in column
4 in F6 is last in column/box
4 in H9 is last in row/box
6 in E9 is last in column/box
6 in G6 is last in box
7 in C6 is last in column/box
9 in D7 is last in row/box
Passo 3 Naked Singles valore: 2.4 categoria doc: Getting_Started
Last candidate 1 in B6 changed to solution
Passo 4 Naked Singles valore: 2.2 categoria doc: Getting_Started
Last candidate 2 in B5 changed to solution
Last candidate 5 in H6 changed to solution
Passo 5 Naked Singles valore: 2 categoria doc: Getting_Started
Last candidate 5 in C5 changed to solution
Last candidate 1 in E5 changed to solution
Passo 6 Naked Singles valore: 2 categoria doc: Getting_Started
Last candidate 8 in H5 changed to solution
Passo 7 Naked Singles valore: 1.9 categoria doc: Getting_Started
Last candidate 1 in H4 changed to solution
Passo 8 Hidden Singles valore: 3.5 categoria doc: Getting_Started
1 in F3 is last in row/box
3 in J7 is last in column
4 in B1 is last in row/box
4 in E3 is last in column
7 in E8 is last in row/box
7 in G9 is last in column
Passo 9 Hidden Singles valore: 2.9 categoria doc: Getting_Started
7 in A3 is last in column
7 in H1 is last in row/box
8 in F4 is last in row
Passo 10 Naked Singles valore: 1.3 categoria doc: Getting_Started
Last candidate 2 in D4 changed to solution
Passo 11 Naked Pair valore: 13.1 categoria doc: Naked_Candidates
Naked Pair 6/8 on cells {D3|J3} means
- 6/8 can be removed from C3
- 8 can be removed from G3
Passo 12 Naked Pair valore: 12.7 categoria doc: Naked_Candidates
Naked Pair 2/9 on cells {G3|H2} means
- 2 can be removed from G1
- 2/9 can be removed from G2
Passo 13 Pointing Pairs valore: 37.1 categoria doc: Intersection_Removal
Pair: between Box 9 and Col 8:
- 9 can be removed from B8
- 9 can be removed from C8
Passo 14 Line/Unit Reduction valore: 48.4 categoria doc: Intersection_Removal
Line/Box Reduction: 2s in box 3 remove the following in the same box:
- 2 can be removed from A7
- 2 can be removed from C8
Passo 15 Naked Triple valore: 44.6 categoria doc: Naked_Candidates
Naked Triple 1/2/9 on cells {A1|A2|C3} means
- 1 can be removed from A7
- 9 can be removed from B2
- 1/2 can be removed from C1
- 1/2/9 can be removed from C2
Last candidate 5 in A7 changed to solution
Passo 16 Naked Singles valore: 1 categoria doc: Getting_Started
Last candidate 2 in F7 changed to solution
Passo 17 Naked Singles valore: 0.9 categoria doc: Getting_Started
Last candidate 5 in F8 changed to solution
Last candidate 1 in G7 changed to solution
Passo 18 Naked Singles valore: 0.8 categoria doc: Getting_Started
Last candidate 8 in J8 changed to solution
Passo 19 Naked Singles valore: 0.7 categoria doc: Getting_Started
Last candidate 3 in B8 changed to solution
Last candidate 6 in J3 changed to solution
Last candidate 5 in J9 changed to solution
Passo 20 Naked Singles valore: 0.6 categoria doc: Getting_Started
Last candidate 1 in C8 changed to solution
Last candidate 8 in D3 changed to solution
Last candidate 1 in J1 changed to solution
Passo 21 Naked Singles valore: 0.6 categoria doc: Getting_Started
Last candidate 2 in A1 changed to solution
Passo 22 Naked Singles valore: 0.4 categoria doc: Getting_Started
Last candidate 9 in A9 changed to solution
Last candidate 9 in C3 changed to solution
Last candidate 3 in E1 changed to solution
Passo 23 Naked Singles valore: 0.2 categoria doc: Getting_Started
Last candidate 1 in A2 changed to solution
Last candidate 8 in B9 changed to solution
Last candidate 6 in C4 changed to solution
Last candidate 2 in E2 changed to solution
Last candidate 2 in G3 changed to solution
Passo 24 Naked Singles valore: 0.1 categoria doc: Getting_Started
Last candidate 6 in B2 changed to solution
Last candidate 9 in B4 changed to solution
Last candidate 8 in C1 changed to solution
Last candidate 2 in C9 changed to solution
Last candidate 9 in G8 changed to solution
Last candidate 9 in H2 changed to solution
Passo 25 Naked Singles valore: 0 categoria doc: Getting_Started
Last candidate 3 in C2 changed to solution
Last candidate 5 in D2 changed to solution
Last candidate 5 in G1 changed to solution
Last candidate 2 in H8 changed to solution
Passo 26 Naked Singles valore: 0 categoria doc: Getting_Started
Last candidate 6 in D1 changed to solution
Last candidate 8 in G2 changed to solution