Passi risolutivi (24)
Passo 1
Hidden Singles
valore: 5.7
categoria doc: Getting_Started
2 in C8 is last in row
6 in B6 is last in column/box
6 in E1 is last in column
6 in J2 is last in row/box
Passo 2
Hidden Singles
valore: 4.7
categoria doc: Getting_Started
3 in E3 is last in row/box
4 in A5 is last in box
4 in B3 is last in row
4 in E6 is last in column
5 in B8 is last in column/box
5 in C1 is last in row
6 in A9 is last in column
6 in F7 is last in row/box
Passo 3
Hidden Singles
valore: 4
categoria doc: Getting_Started
2 in E4 is last in row/box
4 in F8 is last in row/column/box
8 in D3 is last in box
9 in E7 is last in box
Passo 4
Naked Singles
valore: 1.7
categoria doc: Getting_Started
Last candidate 7 in D8 changed to solution
Last candidate 1 in E2 changed to solution
Passo 5
Naked Singles
valore: 1.6
categoria doc: Getting_Started
Last candidate 8 in E8 changed to solution
Passo 6
Naked Singles
valore: 1.6
categoria doc: Getting_Started
Last candidate 7 in E5 changed to solution
Passo 7
Hidden Singles
valore: 3
categoria doc: Getting_Started
8 in A7 is last in column/box
9 in A3 is last in column
Passo 8
Hidden Singles
valore: 2.9
categoria doc: Getting_Started
2 in A2 is last in row/box
Passo 9
Hidden Singles
valore: 2.7
categoria doc: Getting_Started
2 in G6 is last in row
Passo 10
Naked Pair
valore: 12.8
categoria doc: Naked_Candidates
Naked Pair 1/7 on cells {A1|B1} means
- 7 can be removed from G1
- 7 can be removed from H1
Passo 11
Naked Pair
valore: 12.4
categoria doc: Naked_Candidates
Naked Pair 1/7 on cells {B1|B7} means
- 1/7 can be removed from B4
- 7 can be removed from B9
Passo 12
Naked Pair
valore: 12.2
categoria doc: Naked_Candidates
Naked Pair 5/9 on cells {D2|F2} means
- 5 can be removed from H2
Passo 13
Pointing Pairs
valore: 35.9
categoria doc: Intersection_Removal
Pair: between Box 2 and Col 4:
- 3 can be removed from G4
- 3 can be removed from H4
Passo 14
Line/Unit Reduction
valore: 47.3
categoria doc: Intersection_Removal
Line/Box Reduction: 1s in box 2 remove the following in the same box:
- 1 can be removed from A4
Passo 15
W-Wing
valore: 58.5
categoria doc: W_Wings
W-Wing (single). Either there is a 7 in B7 or in J6. They are connected through 1 in A8/J8, therefore
- 7 can be removed from J7
Passo 16
Hidden Singles
valore: 2.3
categoria doc: Getting_Started
7 in J6 is last in row
Passo 17
Hidden Pair
valore: 21.5
categoria doc: Hidden_Candidates
Hidden Pair 4/7 in Row G, on cells {G2|G9}
- removes 3 from G9
Passo 18
Unique Rectangle Type 1
valore: 41.8
categoria doc: Unique_Rectangle
Uniqueness Type 1 removing 4/7 at H9 because of G9,G2,H2
Last candidate 3 in H9 changed to solution
Passo 19
Naked Singles
valore: 0.8
categoria doc: Getting_Started
Last candidate 9 in B9 changed to solution
Last candidate 8 in H1 changed to solution
Last candidate 1 in J8 changed to solution
Passo 20
Naked Singles
valore: 0.6
categoria doc: Getting_Started
Last candidate 3 in A8 changed to solution
Last candidate 3 in B4 changed to solution
Last candidate 7 in C9 changed to solution
Last candidate 3 in G1 changed to solution
Last candidate 1 in H6 changed to solution
Last candidate 2 in J7 changed to solution
Passo 21
Naked Singles
valore: 0.3
categoria doc: Getting_Started
Last candidate 7 in A4 changed to solution
Last candidate 1 in B7 changed to solution
Last candidate 9 in D6 changed to solution
Last candidate 4 in G9 changed to solution
Last candidate 5 in H4 changed to solution
Last candidate 7 in H7 changed to solution
Last candidate 5 in J3 changed to solution
Passo 22
Naked Singles
valore: 0.1
categoria doc: Getting_Started
Last candidate 1 in A1 changed to solution
Last candidate 7 in B1 changed to solution
Last candidate 8 in C6 changed to solution
Last candidate 5 in D2 changed to solution
Last candidate 8 in F4 changed to solution
Last candidate 7 in G2 changed to solution
Last candidate 4 in H2 changed to solution
Last candidate 2 in H3 changed to solution
Last candidate 3 in J5 changed to solution
Passo 23
Naked Singles
valore: 0
categoria doc: Getting_Started
Last candidate 1 in D5 changed to solution
Last candidate 9 in F2 changed to solution
Last candidate 5 in F5 changed to solution
Last candidate 9 in G4 changed to solution
Passo 24
Naked Singles
valore: 0
categoria doc: Getting_Started
Last candidate 1 in C4 changed to solution
Last candidate 9 in C5 changed to solution
Last candidate 8 in G5 changed to solution