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File jsonD:\inetpub\webs\ruggeriinfo\public\sudoku\json\L3_07_02_2026_2026_02_11_07_38_48872541.json
File pdfD:/inetpub/webs/ruggeriinfo/public/sudoku/pdf/L3_07_02_2026_2026_02_11_07_38_48872541_7_2.pdf

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Sudoku Solve Path

GradoTough Livello4 (precedente: 4)
Punteggio finale7.2 Punteggio precedente115
Indizi27 # Passi25
Versione generatoreversion 3.76, 08-Feb-2026
Soluzione349167258186253497725498361857632149491875623263941875618529734934716582572384916
FileD:\inetpub\webs\ruggeriinfo\public\sudoku\json\L3_07_02_2026_2026_02_11_07_38_48872541.json

Passi risolutivi (25)

Passo 1 Hidden Singles valore: 5.1 categoria doc: Getting_Started
1 in A4 is last in column/box
3 in F3 is last in column/box
9 in C5 is last in row/box
9 in H1 is last in row/box
Passo 2 Hidden Singles valore: 4.5 categoria doc: Getting_Started
1 in D7 is last in column
7 in C1 is last in column
7 in J2 is last in box
Passo 3 Naked Singles valore: 2.1 categoria doc: Getting_Started
Last candidate 1 in C9 changed to solution
Passo 4 Hidden Singles valore: 3.9 categoria doc: Getting_Started
1 in G2 is last in column/box
1 in J8 is last in row
8 in D1 is last in column
Passo 5 Hidden Singles valore: 3.5 categoria doc: Getting_Started
3 in G8 is last in column/box
8 in H8 is last in column/box
8 in J5 is last in column
Passo 6 Hidden Singles valore: 3.2 categoria doc: Getting_Started
3 in D5 is last in column
Passo 7 Pointing Pairs valore: 45.8 categoria doc: Intersection_Removal
Triple: between Box 6 and Col 8:
- 2 can be removed from A8
- 2 can be removed from C8
Last candidate 6 in C8 changed to solution
Passo 8 Pointing Pairs valore: 43.7 categoria doc: Intersection_Removal
Pair: between Box 7 and Col 3:
- 4 can be removed from B3
Passo 9 Chute Remote Pair valore: 71.5 categoria doc: Chute_Remote_Pair
2 cannot be set in the yellow cells {C7,C8,C9} and with the Remote Pair in A5 and B3 it means:
- 6 can be removed from A2
- 6 can be removed from B6
Passo 10 Y-Wing valore: 113.3 categoria doc: Y_Wing_Strategy
Y-Wing pattern. Hinge: B3 (2/6), wings B7 H3, therefore
- 4 can be removed from H7
Last candidate 5 in H7 changed to solution
Passo 11 Naked Singles valore: 1.3 categoria doc: Getting_Started
Last candidate 4 in G9 changed to solution Last candidate 7 in H4 changed to solution
Passo 12 Naked Singles valore: 1.2 categoria doc: Getting_Started
Last candidate 7 in B9 changed to solution
Passo 13 Hidden Singles valore: 2.1 categoria doc: Getting_Started
4 in F5 is last in column
5 in A8 is last in row/box
5 in G4 is last in row/box
7 in A6 is last in row/column/box
7 in F8 is last in row/column/box
Passo 14 Naked Singles valore: 0.9 categoria doc: Getting_Started
Last candidate 2 in E8 changed to solution
Passo 15 Naked Singles valore: 0.9 categoria doc: Getting_Started
Last candidate 4 in D8 changed to solution
Passo 16 Hidden Singles valore: 1.7 categoria doc: Getting_Started
6 in A5 is last in row/box
6 in H6 is last in column
Passo 17 Naked Singles valore: 0.8 categoria doc: Getting_Started
Last candidate 2 in G5 changed to solution Last candidate 4 in H3 changed to solution
Passo 18 Naked Singles valore: 0.7 categoria doc: Getting_Started
Last candidate 6 in G1 changed to solution Last candidate 2 in J3 changed to solution Last candidate 3 in J4 changed to solution
Passo 19 Naked Singles valore: 0.6 categoria doc: Getting_Started
Last candidate 6 in B3 changed to solution Last candidate 2 in F1 changed to solution Last candidate 4 in J6 changed to solution
Passo 20 Naked Singles valore: 0.5 categoria doc: Getting_Started
Last candidate 9 in F4 changed to solution
Passo 21 Naked Singles valore: 0.4 categoria doc: Getting_Started
Last candidate 8 in E4 changed to solution Last candidate 5 in F9 changed to solution
Passo 22 Naked Singles valore: 0.4 categoria doc: Getting_Started
Last candidate 2 in B4 changed to solution Last candidate 9 in D9 changed to solution Last candidate 5 in E6 changed to solution Last candidate 6 in F2 changed to solution
Passo 23 Naked Singles valore: 0.2 categoria doc: Getting_Started
Last candidate 4 in B7 changed to solution Last candidate 8 in C6 changed to solution Last candidate 5 in D2 changed to solution Last candidate 2 in D6 changed to solution Last candidate 9 in E2 changed to solution
Passo 24 Naked Singles valore: 0.1 categoria doc: Getting_Started
Last candidate 2 in A7 changed to solution Last candidate 8 in B2 changed to solution Last candidate 3 in B6 changed to solution Last candidate 2 in C2 changed to solution
Passo 25 Naked Singles valore: 0 categoria doc: Getting_Started
Last candidate 4 in A2 changed to solution