Passi risolutivi (16)
Passo 1
Naked Singles
valore: 0
categoria doc: Getting_Started
Last candidate 4 in E2 changed to solution
Last candidate 1 in E8 changed to solution
Passo 2
Hidden Singles
valore: 4.7
categoria doc: Getting_Started
8 in D5 is last in row/column/box
8 in H9 is last in row
8 in J2 is last in box
9 in F6 is last in row/box
Passo 3
Hidden Singles
valore: 4.1
categoria doc: Getting_Started
6 in J1 is last in row/box
8 in A8 is last in column/box
8 in B3 is last in row
9 in B4 is last in row
Passo 4
Hidden Singles
valore: 3.8
categoria doc: Getting_Started
9 in A2 is last in row
Passo 5
Naked Pair
valore: 17.9
categoria doc: Naked_Candidates
Naked Pair 1/4 on cells {B5|B6} means
- 4 can be removed from A6
- 1/4 can be removed from B1
- 4 can be removed from B9
- 1/4 can be removed from C5
Last candidate 2 in A6 changed to solution
Passo 6
Naked Pair
valore: 16.9
categoria doc: Naked_Candidates
Naked Pair 3/6 on cells {C2|C5} means
- 3 can be removed from C1
- 6 can be removed from C3
Passo 7
Naked Pair
valore: 16.4
categoria doc: Naked_Candidates
Naked Pair 4/7 on cells {D7|D8} means
- 7 can be removed from D1
- 7 can be removed from D3
- 7 can be removed from F7
- 7 can be removed from F9
Passo 8
Pointing Pairs
valore: 48.3
categoria doc: Intersection_Removal
Pair: between Box 3 and Col 9:
- 7 can be removed from G9
- 7 can be removed from J9
Passo 9
Line/Unit Reduction
valore: 62.7
categoria doc: Intersection_Removal
Line/Box Reduction: 7s in box 9 remove the following in the same box:
- 7 can be removed from G7
- 7 can be removed from G8
- 7 can be removed from H7
Passo 10
X-Wing
valore: 93.3
categoria doc: X_Wing_Strategy
(Col->Row) 6 taken off F3, based on AD34
Passo 11
Y-Wing
valore: 123.2
categoria doc: Y_Wing_Strategy
Y-Wing pattern. Hinge: C2 (3/6), wings A3 G2, therefore
- 7 can be removed from G3
Passo 12
Y-Wing
valore: 122.1
categoria doc: Y_Wing_Strategy
Y-Wing pattern. Hinge: C3 (1/5), wings B1 F3, therefore
- 7 can be removed from A3
Last candidate 6 in A3 changed to solution
Last candidate 3 in A4 changed to solution
Last candidate 3 in C2 changed to solution
Last candidate 6 in C5 changed to solution
Last candidate 1 in F5 changed to solution
Last candidate 7 in G2 changed to solution
Last candidate 2 in H4 changed to solution
Last candidate 1 in J4 changed to solution
Last candidate 5 in J6 changed to solution
Last candidate 7 in J8 changed to solution
Passo 13
Naked Singles
valore: 0.7
categoria doc: Getting_Started
Last candidate 4 in B5 changed to solution
Last candidate 1 in B6 changed to solution
Last candidate 6 in D4 changed to solution
Last candidate 4 in D8 changed to solution
Last candidate 6 in F2 changed to solution
Last candidate 7 in F3 changed to solution
Last candidate 3 in G5 changed to solution
Last candidate 7 in H5 changed to solution
Last candidate 4 in H6 changed to solution
Last candidate 7 in D7 changed to solution
Passo 14
Hidden Singles
valore: 1.3
categoria doc: Getting_Started
1 in G9 is last in row/column/box
3 in H1 is last in column/box
Passo 15
Naked Singles
valore: 0.4
categoria doc: Getting_Started
Last candidate 3 in F7 changed to solution
Last candidate 5 in F9 changed to solution
Last candidate 9 in G8 changed to solution
Last candidate 2 in J7 changed to solution
Last candidate 3 in J9 changed to solution
Last candidate 7 in B9 changed to solution
Last candidate 5 in C8 changed to solution
Last candidate 4 in G7 changed to solution
Passo 16
Naked Singles
valore: 0
categoria doc: Getting_Started
Last candidate 4 in A9 changed to solution
Last candidate 5 in B1 changed to solution
Last candidate 1 in C3 changed to solution
Last candidate 9 in C7 changed to solution
Last candidate 2 in C9 changed to solution
Last candidate 2 in D3 changed to solution
Last candidate 2 in G1 changed to solution
Last candidate 5 in G3 changed to solution
Last candidate 7 in A1 changed to solution
Last candidate 4 in C1 changed to solution
Last candidate 1 in D1 changed to solution