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File jsonD:\inetpub\webs\ruggeriinfo\public\sudoku\json\L3_06_03_2026_2026_03_20_08_55_47696825.json
File pdfD:/inetpub/webs/ruggeriinfo/public/sudoku/pdf/L3_06_03_2026_2026_03_20_08_55_47696825_7_1.pdf

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Sudoku Solve Path

GradoTough Livello4 (precedente: 4)
Punteggio finale7.1 Punteggio precedente130
Indizi26 # Passi27
Versione generatoreversion 3.83, 14-Mar-2026
Soluzione869152734275364891143879265731428956428596173596713482687245319352981647914637528
FileD:\inetpub\webs\ruggeriinfo\public\sudoku\json\L3_06_03_2026_2026_03_20_08_55_47696825.json

Passi risolutivi (27)

Passo 1 Hidden Singles valore: 5 categoria doc: Getting_Started
3 in G7 is last in column
5 in C9 is last in row/box
5 in F1 is last in column/box
7 in H9 is last in column
8 in G2 is last in column/box
9 in A3 is last in row/box
Passo 2 Hidden Singles valore: 4.4 categoria doc: Getting_Started
5 in G6 is last in row
5 in J7 is last in column/box
Passo 3 Hidden Singles valore: 4.1 categoria doc: Getting_Started
5 in E4 is last in row/column/box
9 in D7 is last in column
9 in G9 is last in box
Passo 4 Naked Singles valore: 1.9 categoria doc: Getting_Started
Last candidate 6 in D9 changed to solution
Passo 5 Naked Singles valore: 1.8 categoria doc: Getting_Started
Last candidate 7 in E8 changed to solution
Passo 6 Hidden Singles valore: 3.5 categoria doc: Getting_Started
9 in E5 is last in row/box
Passo 7 Naked Pair valore: 16.4 categoria doc: Naked_Candidates
Naked Pair 1/4 on cells {A9|B9} means
- 1/4 can be removed from A8
- 4 can be removed from B7
- 1/4 can be removed from C8
Last candidate 8 in B7 changed to solution
Passo 8 Naked Singles valore: 1.6 categoria doc: Getting_Started
Last candidate 4 in F7 changed to solution
Passo 9 Naked Singles valore: 1.5 categoria doc: Getting_Started
Last candidate 8 in F8 changed to solution
Passo 10 Hidden Singles valore: 3 categoria doc: Getting_Started
8 in D6 is last in column
Passo 11 Pointing Pairs valore: 42.9 categoria doc: Intersection_Removal
Pair: between Box 8 and Col 5:
- 4 can be removed from B5
- 4 can be removed from C5
Passo 12 Hidden Singles valore: 2.8 categoria doc: Getting_Started
4 in C2 is last in row
Passo 13 Hidden Singles valore: 2.6 categoria doc: Getting_Started
7 in B2 is last in column/box
Passo 14 Hidden Singles valore: 2.5 categoria doc: Getting_Started
7 in J6 is last in column
Passo 15 Hidden Pair valore: 23.1 categoria doc: Hidden_Candidates
Hidden Pair 7/8 in Box 2, on cells {C4|C5}
- removes 1/6 from C4
- removes 1/6 from C5
Passo 16 Line/Box Reduction valore: 45.1 categoria doc: Intersection_Removal
Pair: between Row C and Box 1:
- 1 can be removed from A2
- 1 can be removed from B1
Passo 17 X-Wing valore: 65.2 categoria doc: X_Wing_Strategy
(Col->Row) 2 taken off D2, based on AE26
(Col->Row) 2 taken off J2, based on AE26
(Col->Row) 2 taken off B6, based on AE26
Passo 18 Naked Pair valore: 10.6 categoria doc: Naked_Candidates
Naked Pair 1/6 on cells {G1|J2} means
- 1/6 can be removed from J1
Passo 19 Chute Remote Pair valore: 52.3 categoria doc: Chute_Remote_Pair
6 cannot be set in the yellow cells {G3,H3,J3} and with the Remote Pair in B1 and E2 it means:
- 2 can be removed from A2
Passo 20 Hidden Singles valore: 2 categoria doc: Getting_Started
2 in A6 is last in row
2 in B1 is last in box
2 in E2 is last in column
Passo 21 Naked Singles valore: 0.9 categoria doc: Getting_Started
Last candidate 6 in E6 changed to solution Last candidate 9 in J1 changed to solution
Passo 22 Naked Singles valore: 0.8 categoria doc: Getting_Started
Last candidate 4 in B6 changed to solution Last candidate 3 in H1 changed to solution Last candidate 6 in J4 changed to solution
Passo 23 Naked Singles valore: 0.7 categoria doc: Getting_Started
Last candidate 1 in A4 changed to solution Last candidate 1 in B9 changed to solution Last candidate 4 in G5 changed to solution Last candidate 2 in H3 changed to solution Last candidate 1 in J2 changed to solution
Passo 24 Naked Singles valore: 0.5 categoria doc: Getting_Started
Last candidate 4 in A9 changed to solution Last candidate 6 in B5 changed to solution Last candidate 3 in D2 changed to solution Last candidate 7 in F4 changed to solution Last candidate 6 in G1 changed to solution Last candidate 1 in G8 changed to solution Last candidate 8 in H5 changed to solution Last candidate 4 in H8 changed to solution Last candidate 2 in J8 changed to solution
Passo 25 Naked Singles valore: 0.2 categoria doc: Getting_Started
Last candidate 6 in A2 changed to solution Last candidate 1 in C1 changed to solution Last candidate 8 in C4 changed to solution Last candidate 7 in C5 changed to solution Last candidate 1 in D3 changed to solution Last candidate 1 in F5 changed to solution Last candidate 9 in H4 changed to solution
Passo 26 Naked Singles valore: 0.1 categoria doc: Getting_Started
Last candidate 3 in A8 changed to solution Last candidate 3 in C3 changed to solution Last candidate 2 in D5 changed to solution Last candidate 6 in F3 changed to solution
Passo 27 Naked Singles valore: 0 categoria doc: Getting_Started
Last candidate 6 in C8 changed to solution