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Sudoku Solve Path

GradoTough Livello4 (precedente: 4)
Punteggio finale7.0 Punteggio precedente198
Indizi24 # Passi31
Versione generatoreversion 3.76, 08-Feb-2026
Soluzione581347962293168457764259831438715629915826374627934518876592143359471286142683795
FileD:\inetpub\webs\ruggeriinfo\public\sudoku\json\L3_29_01_2026_2026_02_11_07_34_19416946.json

Passi risolutivi (31)

Passo 1 Naked Singles valore: 0 categoria doc: Getting_Started
Last candidate 6 in B5 changed to solution
Passo 2 Naked Singles valore: 2.6 categoria doc: Getting_Started
Last candidate 2 in B1 changed to solution
Passo 3 Naked Singles valore: 2.5 categoria doc: Getting_Started
Last candidate 3 in B3 changed to solution
Passo 4 Naked Singles valore: 2.4 categoria doc: Getting_Started
Last candidate 9 in B2 changed to solution Last candidate 1 in B4 changed to solution
Passo 5 Hidden Singles valore: 4.4 categoria doc: Getting_Started
1 in H6 is last in row/column/box
2 in C4 is last in row/box
4 in A5 is last in column
5 in E3 is last in column
5 in J9 is last in row/box
Passo 6 Naked Singles valore: 2 categoria doc: Getting_Started
Last candidate 4 in D1 changed to solution
Passo 7 Naked Singles valore: 2 categoria doc: Getting_Started
Last candidate 6 in F1 changed to solution
Passo 8 Hidden Singles valore: 3.5 categoria doc: Getting_Started
4 in F6 is last in row/column/box
5 in C5 is last in column
5 in D6 is last in row
5 in F7 is last in column/box
7 in H5 is last in row
Passo 9 Hidden Singles valore: 3.1 categoria doc: Getting_Started
2 in H7 is last in column
5 in A1 is last in row/column/box
9 in A7 is last in column
Passo 10 Naked Pair valore: 14.3 categoria doc: Naked_Candidates
Naked Pair 3/7 on cells {A4|A6} means
- 7 can be removed from A2
- 3 can be removed from A8
Passo 11 Naked Pair valore: 13.2 categoria doc: Naked_Candidates
Naked Pair 6/8 on cells {A8|H8} means
- 6/8 can be removed from C8
- 8 can be removed from E8
- 8 can be removed from F8
- 6/8 can be removed from G8
- 6/8 can be removed from J8
Passo 12 Naked Pair valore: 12.7 categoria doc: Naked_Candidates
Naked Pair 2/6 on cells {G3|J3} means
- 2/6 can be removed from G2
- 2/6 can be removed from J2
Passo 13 Naked Pair valore: 12.4 categoria doc: Naked_Candidates
Naked Pair 8/9 on cells {G5|J5} means
- 8/9 can be removed from J4
Passo 14 Naked Pair valore: 12.1 categoria doc: Naked_Candidates
Naked Pair 6/8 on cells {H8|H9} means
- 6/8 can be removed from G9
Passo 15 Naked Pair valore: 11.8 categoria doc: Naked_Candidates
Naked Pair 3/9 on cells {D9|G9} means
- 3 can be removed from C9
- 9 can be removed from F9
Passo 16 Hidden Pair valore: 23.4 categoria doc: Hidden_Candidates
Hidden Pair 2/6 in Row G, on cells {G3|G6}
- removes 3 from G6
Passo 17 Pointing Pairs valore: 34.7 categoria doc: Intersection_Removal
Pair: between Box 8 and Row J:
- 3 can be removed from J8
Passo 18 Unique Rectangle Type 1 valore: 45.1 categoria doc: Unique_Rectangle
Uniqueness Type 1 removing 2/6 at J6 because of G6,G3,J3
Last candidate 3 in J6 changed to solution
Passo 19 Naked Singles valore: 1.1 categoria doc: Getting_Started
Last candidate 7 in A6 changed to solution Last candidate 6 in J4 changed to solution
Passo 20 Naked Singles valore: 1 categoria doc: Getting_Started
Last candidate 3 in A4 changed to solution Last candidate 6 in E6 changed to solution Last candidate 2 in G6 changed to solution Last candidate 2 in J3 changed to solution
Passo 21 Naked Singles valore: 0.9 categoria doc: Getting_Started
Last candidate 6 in G3 changed to solution
Passo 22 Y-Wing valore: 70.4 categoria doc: Y_Wing_Strategy
Y-Wing pattern. Hinge: E7 (3/8), wings E2 F9, therefore
- 1 can be removed from E8
- 1 can be removed from F2
Last candidate 2 in F2 changed to solution
Passo 23 Naked Singles valore: 0.8 categoria doc: Getting_Started
Last candidate 3 in D2 changed to solution
Passo 24 Naked Singles valore: 0.8 categoria doc: Getting_Started
Last candidate 9 in D9 changed to solution Last candidate 1 in E2 changed to solution
Passo 25 Naked Singles valore: 0.7 categoria doc: Getting_Started
Last candidate 7 in D4 changed to solution Last candidate 1 in F8 changed to solution Last candidate 3 in G9 changed to solution
Passo 26 Naked Singles valore: 0.6 categoria doc: Getting_Started
Last candidate 3 in C8 changed to solution Last candidate 2 in D8 changed to solution Last candidate 8 in E4 changed to solution Last candidate 8 in F9 changed to solution
Passo 27 Naked Singles valore: 0.5 categoria doc: Getting_Started
Last candidate 8 in C7 changed to solution Last candidate 3 in E7 changed to solution Last candidate 7 in E8 changed to solution Last candidate 9 in F4 changed to solution Last candidate 6 in H9 changed to solution
Passo 28 Naked Singles valore: 0.3 categoria doc: Getting_Started
Last candidate 6 in A8 changed to solution Last candidate 7 in C1 changed to solution Last candidate 1 in C9 changed to solution Last candidate 8 in H8 changed to solution
Passo 29 Naked Singles valore: 0.2 categoria doc: Getting_Started
Last candidate 8 in A2 changed to solution Last candidate 6 in C2 changed to solution Last candidate 8 in G1 changed to solution
Passo 30 Naked Singles valore: 0.1 categoria doc: Getting_Started
Last candidate 9 in G5 changed to solution Last candidate 4 in J2 changed to solution
Passo 31 Naked Singles valore: 0.1 categoria doc: Getting_Started
Last candidate 7 in G2 changed to solution Last candidate 4 in G8 changed to solution Last candidate 8 in J5 changed to solution Last candidate 9 in J8 changed to solution