Passi risolutivi (25)
Passo 1
Hidden Singles
valore: 5.1
categoria doc: Getting_Started
2 in C8 is last in row/box
2 in D2 is last in column/box
2 in H4 is last in row/box
5 in A5 is last in column
5 in D9 is last in row/box
5 in G4 is last in row/box
6 in C7 is last in column
7 in A1 is last in row/box
9 in J8 is last in row/box
Passo 2
Hidden Singles
valore: 4
categoria doc: Getting_Started
2 in E6 is last in column/box
2 in F9 is last in row
3 in J5 is last in column
5 in B8 is last in column/box
5 in C1 is last in row
6 in A2 is last in row/box
Passo 3
Hidden Singles
valore: 3.5
categoria doc: Getting_Started
9 in B2 is last in column
Passo 4
Naked Pair
valore: 16.9
categoria doc: Naked_Candidates
Naked Pair 4/6 on cells {E5|F5} means
- 4 can be removed from E4
- 4 can be removed from F4
Passo 5
Pointing Pairs
valore: 50.3
categoria doc: Intersection_Removal
Pair: between Box 3 and Row A:
- 4 can be removed from A4
Passo 6
Hidden Singles
valore: 3.3
categoria doc: Getting_Started
4 in C4 is last in column/box
Passo 7
Hidden Singles
valore: 3.2
categoria doc: Getting_Started
1 in J4 is last in column
4 in J2 is last in column
Passo 8
Hidden Singles
valore: 2.9
categoria doc: Getting_Started
7 in E4 is last in column
7 in J6 is last in row
8 in G2 is last in column
Passo 9
Naked Singles
valore: 1.2
categoria doc: Getting_Started
Last candidate 6 in G6 changed to solution
Last candidate 6 in J1 changed to solution
Passo 10
Naked Singles
valore: 1.2
categoria doc: Getting_Started
Last candidate 8 in J9 changed to solution
Passo 11
Hidden Singles
valore: 2.2
categoria doc: Getting_Started
6 in H9 is last in row/column/box
7 in D7 is last in row/column/box
Passo 12
Hidden Singles
valore: 2.1
categoria doc: Getting_Started
1 in G9 is last in column/box
Passo 13
Naked Pair
valore: 10
categoria doc: Naked_Candidates
Naked Pair 3/7 on cells {G8|H8} means
- 3 can be removed from A8
- 3 can be removed from F8
Passo 14
Line/Unit Reduction
valore: 38
categoria doc: Intersection_Removal
Line/Box Reduction: 4s in box 4 remove the following in the same box:
- 4 can be removed from E1
- 4 can be removed from E3
- 4 can be removed from F1
- 4 can be removed from F3
Passo 15
X-Wing
valore: 54.5
categoria doc: X_Wing_Strategy
(Row->Col) 8 taken off A6, based on AF48
(Row->Col) 8 taken off F1, based on AF48
(Row->Col) 8 taken off F7, based on AF48
Passo 16
Unique Rectangle Type 1
valore: 35.2
categoria doc: Unique_Rectangle
Uniqueness Type 1 removing 3/7 at H3 because of G3,G8,H8
Last candidate 1 in H3 changed to solution
Passo 17
Naked Singles
valore: 0.8
categoria doc: Getting_Started
Last candidate 3 in H2 changed to solution
Passo 18
Naked Singles
valore: 0.7
categoria doc: Getting_Started
Last candidate 1 in C2 changed to solution
Last candidate 7 in G3 changed to solution
Last candidate 7 in H8 changed to solution
Passo 19
Naked Singles
valore: 0.6
categoria doc: Getting_Started
Last candidate 3 in C6 changed to solution
Last candidate 3 in G8 changed to solution
Passo 20
Naked Singles
valore: 0.6
categoria doc: Getting_Started
Last candidate 9 in A6 changed to solution
Passo 21
Naked Singles
valore: 0.5
categoria doc: Getting_Started
Last candidate 8 in A4 changed to solution
Last candidate 8 in D6 changed to solution
Passo 22
Naked Singles
valore: 0.4
categoria doc: Getting_Started
Last candidate 4 in A8 changed to solution
Last candidate 1 in B6 changed to solution
Last candidate 4 in D1 changed to solution
Last candidate 9 in F4 changed to solution
Passo 23
Naked Singles
valore: 0.2
categoria doc: Getting_Started
Last candidate 3 in A9 changed to solution
Last candidate 3 in B1 changed to solution
Last candidate 9 in D3 changed to solution
Last candidate 3 in F7 changed to solution
Last candidate 8 in F8 changed to solution
Passo 24
Naked Singles
valore: 0
categoria doc: Getting_Started
Last candidate 4 in B3 changed to solution
Last candidate 8 in B7 changed to solution
Last candidate 8 in E1 changed to solution
Last candidate 9 in E7 changed to solution
Last candidate 4 in E9 changed to solution
Last candidate 1 in F1 changed to solution
Last candidate 6 in F3 changed to solution
Passo 25
Naked Singles
valore: 0
categoria doc: Getting_Started
Last candidate 3 in E3 changed to solution
Last candidate 6 in E5 changed to solution
Last candidate 4 in F5 changed to solution