Passi risolutivi (28)
Passo 1
Hidden Singles
valore: 4.9
categoria doc: Getting_Started
1 in B7 is last in column/box
4 in D1 is last in column/box
6 in E3 is last in row
6 in F9 is last in column/box
7 in A5 is last in row/column/box
7 in J7 is last in column/box
Passo 2
Naked Singles
valore: 2.3
categoria doc: Getting_Started
Last candidate 2 in B3 changed to solution
Passo 3
Naked Singles
valore: 2.2
categoria doc: Getting_Started
Last candidate 9 in B2 changed to solution
Passo 4
Hidden Singles
valore: 4
categoria doc: Getting_Started
1 in A4 is last in row/box
6 in B1 is last in row/column/box
9 in J1 is last in row/column/box
Passo 5
Hidden Singles
valore: 3.9
categoria doc: Getting_Started
5 in A1 is last in column/box
Passo 6
Pointing Pairs
valore: 56.1
categoria doc: Intersection_Removal
Pair: between Box 2 and Row C:
- 9 can be removed from C8
- 9 can be removed from C9
Passo 7
Hidden Singles
valore: 3.7
categoria doc: Getting_Started
9 in A9 is last in column
Passo 8
Rectangle Elimination
valore: 90.1
categoria doc: Rectangle_Elimination
If +1[E5] then -1[E2] forcing +1[J2] which removes all 1s from box 8, so E5 cannot be 1
Passo 9
Pointing Pairs
valore: 53.6
categoria doc: Intersection_Removal
Pair: between Box 5 and Col 6:
- 1 can be removed from J6
Last candidate 8 in J6 changed to solution
Passo 10
W-Wing
valore: 84.6
categoria doc: W_Wings
W-Wing (single). Either there is a 3 in A8 or in C2. They are connected through 8 in G8/G2, therefore
- 3 can be removed from A3
- 3 can be removed from C8
- 3 can be removed from C9
Last candidate 8 in A3 changed to solution
Passo 11
Naked Singles
valore: 1.6
categoria doc: Getting_Started
Last candidate 3 in A8 changed to solution
Last candidate 3 in C2 changed to solution
Passo 12
Hidden Singles
valore: 2.9
categoria doc: Getting_Started
8 in G2 is last in column/box
Passo 13
Hidden Singles
valore: 2.8
categoria doc: Getting_Started
7 in D2 is last in column
7 in G1 is last in row/box
Passo 14
Naked Singles
valore: 1.3
categoria doc: Getting_Started
Last candidate 5 in D6 changed to solution
Passo 15
Naked Singles
valore: 1.2
categoria doc: Getting_Started
Last candidate 6 in G6 changed to solution
Passo 16
Naked Singles
valore: 1.2
categoria doc: Getting_Started
Last candidate 4 in C6 changed to solution
Passo 17
Naked Singles
valore: 1.1
categoria doc: Getting_Started
Last candidate 5 in B5 changed to solution
Last candidate 1 in E6 changed to solution
Passo 18
Naked Singles
valore: 1
categoria doc: Getting_Started
Last candidate 4 in B9 changed to solution
Last candidate 9 in C5 changed to solution
Last candidate 2 in E2 changed to solution
Last candidate 7 in F6 changed to solution
Passo 19
Naked Singles
valore: 0.8
categoria doc: Getting_Started
Last candidate 6 in C4 changed to solution
Last candidate 3 in F1 changed to solution
Last candidate 1 in J2 changed to solution
Passo 20
Naked Singles
valore: 0.7
categoria doc: Getting_Started
Last candidate 1 in F3 changed to solution
Last candidate 2 in H1 changed to solution
Last candidate 3 in H3 changed to solution
Passo 21
Naked Singles
valore: 0.6
categoria doc: Getting_Started
Last candidate 1 in H5 changed to solution
Passo 22
Hidden Singles
valore: 1
categoria doc: Getting_Started
3 in J9 is last in box
4 in E5 is last in row/column/box
4 in H8 is last in row/column/box
5 in G4 is last in column/box
Passo 23
Naked Singles
valore: 0.4
categoria doc: Getting_Started
Last candidate 2 in G8 changed to solution
Last candidate 2 in J5 changed to solution
Passo 24
Naked Singles
valore: 0.3
categoria doc: Getting_Started
Last candidate 9 in F8 changed to solution
Last candidate 3 in G5 changed to solution
Passo 25
Naked Singles
valore: 0.3
categoria doc: Getting_Started
Last candidate 5 in E8 changed to solution
Last candidate 2 in F4 changed to solution
Passo 26
Naked Singles
valore: 0.2
categoria doc: Getting_Started
Last candidate 8 in C8 changed to solution
Last candidate 3 in D4 changed to solution
Last candidate 3 in E7 changed to solution
Passo 27
Naked Singles
valore: 0.1
categoria doc: Getting_Started
Last candidate 5 in C9 changed to solution
Last candidate 8 in D7 changed to solution
Last candidate 9 in E4 changed to solution
Passo 28
Naked Singles
valore: 0
categoria doc: Getting_Started
Last candidate 2 in D9 changed to solution
Last candidate 5 in H7 changed to solution
Last candidate 8 in H9 changed to solution