Passi risolutivi (27)
Passo 1
Hidden Singles
valore: 5.4
categoria doc: Getting_Started
2 in B9 is last in row
2 in C3 is last in box
7 in A6 is last in row/box
7 in H5 is last in column
8 in H2 is last in column/box
9 in B2 is last in box
9 in C5 is last in row
Passo 2
Naked Singles
valore: 2.4
categoria doc: Getting_Started
Last candidate 3 in C9 changed to solution
Passo 3
Naked Singles
valore: 2.3
categoria doc: Getting_Started
Last candidate 6 in C6 changed to solution
Last candidate 1 in C7 changed to solution
Passo 4
Hidden Singles
valore: 4
categoria doc: Getting_Started
1 in D8 is last in column/box
2 in J7 is last in column/box
3 in H1 is last in row/box
7 in J1 is last in row/column/box
Passo 5
Hidden Singles
valore: 3.6
categoria doc: Getting_Started
9 in J9 is last in row/box
Passo 6
Naked Pair
valore: 16.9
categoria doc: Naked_Candidates
Naked Pair 5/8 on cells {A7|G7} means
- 5 can be removed from D7
- 5/8 can be removed from E7
Passo 7
Hidden Pair
valore: 32.5
categoria doc: Hidden_Candidates
Hidden Pair 2/9 in Row F, on cells {F1|F4}
- removes 4/6 from F1
- removes 3/6/8 from F4
Passo 8
Pointing Pairs
valore: 48.3
categoria doc: Intersection_Removal
Pair: between Box 1 and Row A:
- 1 can be removed from A4
Passo 9
Pointing Pairs
valore: 47.9
categoria doc: Intersection_Removal
Pair: between Box 1 and Row A:
- 3 can be removed from A4
Passo 10
Pointing Pairs
valore: 47
categoria doc: Intersection_Removal
Pair: between Box 7 and Col 3:
- 5 can be removed from E3
- 5 can be removed from F3
Passo 11
Pointing Pairs
valore: 46.6
categoria doc: Intersection_Removal
Pair: between Box 9 and Col 8:
- 6 can be removed from F8
Passo 12
Line/Unit Reduction
valore: 61.1
categoria doc: Intersection_Removal
Line/Box Reduction: 3s in box 4 remove the following in the same box:
- 3 can be removed from D2
- 3 can be removed from E3
Passo 13
Naked Pair
valore: 14.7
categoria doc: Naked_Candidates
Naked Pair 5/6 on cells {D2|D5} means
- 6 can be removed from D1
- 5 can be removed from D6
- 5/6 can be removed from D9
Last candidate 4 in D9 changed to solution
Passo 14
Hidden Singles
valore: 2.7
categoria doc: Getting_Started
4 in A4 is last in row
4 in B8 is last in column/box
4 in F3 is last in row/box
4 in G1 is last in column
Passo 15
Hidden Singles
valore: 2.2
categoria doc: Getting_Started
3 in A3 is last in column
3 in F2 is last in row/box
4 in J6 is last in row/column/box
Passo 16
Naked Singles
valore: 1.1
categoria doc: Getting_Started
Last candidate 6 in A2 changed to solution
Passo 17
Naked Singles
valore: 1
categoria doc: Getting_Started
Last candidate 1 in A1 changed to solution
Last candidate 5 in D2 changed to solution
Passo 18
Naked Singles
valore: 1
categoria doc: Getting_Started
Last candidate 6 in D5 changed to solution
Passo 19
Hidden Singles
valore: 1.7
categoria doc: Getting_Started
1 in E3 is last in row/column/box
6 in E1 is last in column
6 in F9 is last in row
Passo 20
W-Wing
valore: 39.2
categoria doc: W_Wings
W-Wing (single). Either there is a 5 in F5 or in G7. They are connected through 8 in F8/J8, therefore
- 5 can be removed from G5
Passo 21
Hidden Singles
valore: 1.5
categoria doc: Getting_Started
5 in F5 is last in column
5 in H6 is last in box
Passo 22
Naked Singles
valore: 0.7
categoria doc: Getting_Started
Last candidate 8 in F8 changed to solution
Last candidate 6 in H8 changed to solution
Passo 23
Naked Singles
valore: 0.6
categoria doc: Getting_Started
Last candidate 5 in E9 changed to solution
Last candidate 2 in H4 changed to solution
Last candidate 5 in J8 changed to solution
Passo 24
Naked Singles
valore: 0.5
categoria doc: Getting_Started
Last candidate 8 in A9 changed to solution
Last candidate 9 in F4 changed to solution
Last candidate 8 in G7 changed to solution
Last candidate 6 in J3 changed to solution
Passo 25
Naked Singles
valore: 0.4
categoria doc: Getting_Started
Last candidate 5 in A7 changed to solution
Last candidate 2 in F1 changed to solution
Last candidate 5 in G3 changed to solution
Last candidate 1 in G5 changed to solution
Last candidate 8 in J4 changed to solution
Passo 26
Naked Singles
valore: 0.2
categoria doc: Getting_Started
Last candidate 8 in B5 changed to solution
Last candidate 9 in D1 changed to solution
Last candidate 3 in E4 changed to solution
Last candidate 6 in G4 changed to solution
Passo 27
Naked Singles
valore: 0.1
categoria doc: Getting_Started
Last candidate 1 in B4 changed to solution
Last candidate 3 in B6 changed to solution
Last candidate 2 in D6 changed to solution
Last candidate 3 in D7 changed to solution
Last candidate 8 in E6 changed to solution
Last candidate 9 in E7 changed to solution