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Sudoku Solve Path

GradoTough Livello4 (precedente: 4)
Punteggio finale6.7 Punteggio precedente153
Indizi24 # Passi27
Versione generatoreversion 4.21, 22-Jul-2026
Soluzione537286149812947356469351872681573294754192683923468517146725938378619425295834761
FileD:\inetpub\webs\ruggeriinfo\public\sudoku\json\L3_25_06_2026_2026_07_24_13_29_33952896.json

Passi risolutivi (27)

Passo 1 Naked Singles valore: 2 categoria doc: Getting_Started
Last candidate 7 in B6 changed to solution
Last candidate 2 in E6 changed to solution
Passo 2 Naked Singles valore: 1 categoria doc: Getting_Started
Last candidate 3 in D6 changed to solution
Passo 3 Naked Singles valore: 2.5 categoria doc: Getting_Started
Last candidate 6 in A6 changed to solution
Last candidate 1 in D3 changed to solution
Passo 4 Naked Singles valore: 2.4 categoria doc: Getting_Started
Last candidate 5 in G6 changed to solution
Passo 5 Naked Singles valore: 2.3 categoria doc: Getting_Started
Last candidate 1 in G1 changed to solution
Last candidate 4 in J6 changed to solution
Passo 6 Hidden Singles valore: 4 categoria doc: Getting_Started
2 in J1 is last in column
3 in G8 is last in row
4 in A8 is last in column/box
4 in C1 is last in row
4 in F4 is last in row/column/box
7 in D5 is last in row/column/box
7 in H2 is last in row
7 in J7 is last in column/box
Passo 7 Hidden Singles valore: 3.4 categoria doc: Getting_Started
6 in F5 is last in row/box
6 in G3 is last in row
7 in A3 is last in row/column/box
Passo 8 Naked Singles valore: 1.5 categoria doc: Getting_Started
Last candidate 1 in H5 changed to solution
Passo 9 Naked Singles valore: 1.4 categoria doc: Getting_Started
Last candidate 9 in E5 changed to solution
Last candidate 6 in H4 changed to solution
Passo 10 Naked Singles valore: 1.4 categoria doc: Getting_Started
Last candidate 1 in E4 changed to solution
Passo 11 Hidden Singles valore: 2.5 categoria doc: Getting_Started
6 in C2 is last in row/column/box
6 in J8 is last in row/column/box
Passo 12 Hidden Singles valore: 2.4 categoria doc: Getting_Started
1 in J9 is last in row/box
Passo 13 Naked Pair valore: 11.1 categoria doc: Naked_Candidates
Naked Pair 5/8 on cells {A1|B1} means
- 5/8 can be removed from A2
- 5/8 can be removed from B2
Passo 14 Hidden Pair valore: 21.2 categoria doc: Hidden_Candidates
Hidden Pair 1/5 in Col 7, on cells {A7|F7}
- removes 2/8/9 from A7
- removes 2 from F7
Passo 15 Unique Rectangle Type 1 valore: 41.3 categoria doc: Unique_Rectangle
Uniqueness Type 1 removing 3/8 at A4 because of A5,J5,J4
Passo 16 XYZ Wing valore: 122.1 categoria doc: XYZ_Wing
XYZ-Wing pattern. Hinge: F8 (1/2/5), wings F7 H8, therefore
- 5 can be removed from E8
Last candidate 8 in E8 changed to solution
Passo 17 Naked Singles valore: 0.9 categoria doc: Getting_Started
Last candidate 5 in E2 changed to solution
Passo 18 Naked Singles valore: 0.8 categoria doc: Getting_Started
Last candidate 3 in F3 changed to solution
Last candidate 9 in J2 changed to solution
Passo 19 Naked Singles valore: 0.6 categoria doc: Getting_Started
Last candidate 1 in B2 changed to solution
Last candidate 9 in C3 changed to solution
Last candidate 2 in F2 changed to solution
Last candidate 5 in J3 changed to solution
Passo 20 Naked Singles valore: 0.6 categoria doc: Getting_Started
Last candidate 3 in A2 changed to solution
Last candidate 8 in D2 changed to solution
Passo 21 Naked Singles valore: 0.5 categoria doc: Getting_Started
Last candidate 8 in A5 changed to solution
Passo 22 Naked Singles valore: 0.4 categoria doc: Getting_Started
Last candidate 5 in A1 changed to solution
Last candidate 9 in B4 changed to solution
Last candidate 3 in J5 changed to solution
Passo 23 Naked Singles valore: 0.3 categoria doc: Getting_Started
Last candidate 2 in A4 changed to solution
Last candidate 1 in A7 changed to solution
Last candidate 8 in B1 changed to solution
Last candidate 5 in B8 changed to solution
Last candidate 8 in J4 changed to solution
Passo 24 Naked Singles valore: 0.2 categoria doc: Getting_Started
Last candidate 9 in A9 changed to solution
Last candidate 3 in C4 changed to solution
Last candidate 5 in F7 changed to solution
Last candidate 1 in F8 changed to solution
Last candidate 2 in H8 changed to solution
Passo 25 Naked Singles valore: 0.1 categoria doc: Getting_Started
Last candidate 9 in D8 changed to solution
Last candidate 8 in G9 changed to solution
Last candidate 5 in H9 changed to solution
Passo 26 Naked Singles valore: 0 categoria doc: Getting_Started
Last candidate 2 in C9 changed to solution
Last candidate 2 in D7 changed to solution
Last candidate 9 in G7 changed to solution
Passo 27 Naked Singles valore: 0 categoria doc: Getting_Started
Last candidate 8 in C7 changed to solution