Sudoku Solve Path

File json	D:\inetpub\webs\ruggeriinfo\public\sudoku\json\L3_11_03_2026_2026_03_20_08_58_17262477.json
File pdf	D:/inetpub/webs/ruggeriinfo/public/sudoku/pdf/L3_11_03_2026_2026_03_20_08_58_17262477_7_5.pdf

Grado	Tough	Livello	4 (precedente: 4)
Punteggio finale	7.5	Punteggio precedente	115
Indizi	25	# Passi	25
Versione generatore	version 3.83, 14-Mar-2026
Soluzione	862195473543276189971843526426731958798654312315928647637512894254389761189467235
File	D:\inetpub\webs\ruggeriinfo\public\sudoku\json\L3_11_03_2026_2026_03_20_08_58_17262477.json

Passi risolutivi (25)

Passo 1 Naked Singles valore: 0 categoria doc: Getting_Started

Last candidate 2 in G6 changed to solution

Passo 2 Hidden Singles valore: 5.4 categoria doc: Getting_Started

1 in A4 is last in box
2 in C8 is last in row/column/box
3 in B3 is last in column
5 in B1 is last in row/box
9 in G8 is last in row/box

Passo 3 Naked Singles valore: 2.4 categoria doc: Getting_Started

Last candidate 6 in G1 changed to solution

Passo 4 Naked Singles valore: 2.3 categoria doc: Getting_Started

Last candidate 8 in A1 changed to solution Last candidate 5 in G4 changed to solution

Passo 5 Naked Singles valore: 2.1 categoria doc: Getting_Started

Last candidate 3 in G2 changed to solution

Passo 6 Hidden Singles valore: 4 categoria doc: Getting_Started

3 in E7 is last in column
8 in B8 is last in column/box

Passo 7 Hidden Singles valore: 3.8 categoria doc: Getting_Started

6 in F7 is last in column

Passo 8 Naked Pair valore: 18 categoria doc: Naked_Candidates

Naked Pair 6/7 on cells {A2|C2} means
- 6 can be removed from D2
- 6 can be removed from E2

Passo 9 Pointing Pairs valore: 53.6 categoria doc: Intersection_Removal

Pair: between Box 8 and Row J:
- 4 can be removed from J1
Last candidate 1 in J1 changed to solution

Passo 10 Pointing Pairs valore: 50.3 categoria doc: Intersection_Removal

Pair: between Box 6 and Col 8:
- 5 can be removed from J8

Passo 11 Naked Pair valore: 16.5 categoria doc: Naked_Candidates

Naked Pair 3/7 on cells {A8|J8} means
- 7 can be removed from D8
- 7 can be removed from F8

Passo 12 Hidden Singles valore: 3.3 categoria doc: Getting_Started

7 in F9 is last in box

Passo 13 Pointing Pairs valore: 44.6 categoria doc: Intersection_Removal

Pair: between Box 2 and Col 5:
- 9 can be removed from E5
- 9 can be removed from F5

Passo 14 X-Wing valore: 86.7 categoria doc: X_Wing_Strategy

(Col->Row) 7 taken off A5, based on BH57
(Col->Row) 7 taken off D5, based on BH57
(Col->Row) 7 taken off J5, based on BH57

Passo 15 Y-Wing valore: 114.4 categoria doc: Y_Wing_Strategy

Y-Wing pattern. Hinge: A5 (3/9), wings A8 B5, therefore
- 7 can be removed from B7
Last candidate 1 in B7 changed to solution

Passo 16 Naked Singles valore: 1.4 categoria doc: Getting_Started

Last candidate 9 in B9 changed to solution Last candidate 7 in H7 changed to solution

Passo 17 Naked Singles valore: 1.3 categoria doc: Getting_Started

Last candidate 7 in B5 changed to solution Last candidate 8 in H5 changed to solution Last candidate 3 in J8 changed to solution

Passo 18 Naked Singles valore: 1.1 categoria doc: Getting_Started

Last candidate 7 in A8 changed to solution Last candidate 8 in C4 changed to solution Last candidate 2 in F5 changed to solution Last candidate 4 in H3 changed to solution Last candidate 6 in J5 changed to solution Last candidate 5 in J9 changed to solution

Passo 19 Naked Singles valore: 0.8 categoria doc: Getting_Started

Last candidate 6 in A2 changed to solution Last candidate 3 in C6 changed to solution Last candidate 6 in D3 changed to solution Last candidate 5 in E5 changed to solution Last candidate 2 in H1 changed to solution Last candidate 1 in H9 changed to solution Last candidate 8 in J2 changed to solution

Passo 20 Naked Singles valore: 0.6 categoria doc: Getting_Started

Last candidate 9 in A5 changed to solution Last candidate 3 in A9 changed to solution Last candidate 7 in C2 changed to solution Last candidate 6 in C9 changed to solution Last candidate 4 in D1 changed to solution Last candidate 3 in D5 changed to solution Last candidate 8 in E3 changed to solution Last candidate 5 in H2 changed to solution

Passo 21 Naked Singles valore: 0.4 categoria doc: Getting_Started

Last candidate 7 in D4 changed to solution

Passo 22 Naked Singles valore: 0.4 categoria doc: Getting_Started

Last candidate 1 in D6 changed to solution Last candidate 4 in J4 changed to solution

Passo 23 Naked Singles valore: 0.2 categoria doc: Getting_Started

Last candidate 2 in D2 changed to solution Last candidate 5 in D8 changed to solution Last candidate 4 in E6 changed to solution Last candidate 9 in F4 changed to solution Last candidate 7 in J6 changed to solution

Passo 24 Naked Singles valore: 0.1 categoria doc: Getting_Started

Last candidate 6 in E4 changed to solution Last candidate 1 in E8 changed to solution Last candidate 1 in F2 changed to solution Last candidate 8 in F6 changed to solution

Passo 25 Naked Singles valore: 0 categoria doc: Getting_Started

Last candidate 9 in E2 changed to solution Last candidate 4 in F8 changed to solution

PDF :::: Sudoku Solve Path

Sudoku Solve Path

Passi risolutivi (25)