Passi risolutivi (28)
Passo 1
Naked Singles
valore: 1
categoria doc: Getting_Started
Last candidate 2 in A9 changed to solution
Passo 2
Naked Singles
valore: 1
categoria doc: Getting_Started
Last candidate 3 in H9 changed to solution
Passo 3
Naked Singles
valore: 2.6
categoria doc: Getting_Started
Last candidate 4 in C9 changed to solution
Passo 4
Naked Singles
valore: 2.5
categoria doc: Getting_Started
Last candidate 8 in B9 changed to solution
Passo 5
Naked Singles
valore: 2.4
categoria doc: Getting_Started
Last candidate 7 in E9 changed to solution
Last candidate 9 in G9 changed to solution
Passo 6
Naked Singles
valore: 2.3
categoria doc: Getting_Started
Last candidate 6 in E5 changed to solution
Passo 7
Naked Singles
valore: 2.2
categoria doc: Getting_Started
Last candidate 8 in E3 changed to solution
Passo 8
Hidden Singles
valore: 4
categoria doc: Getting_Started
1 in F3 is last in row/box
3 in G6 is last in row/column/box
5 in F6 is last in box
5 in H2 is last in row/box
8 in D4 is last in column/box
9 in A2 is last in column/box
Passo 9
Naked Singles
valore: 1.6
categoria doc: Getting_Started
Last candidate 6 in A6 changed to solution
Last candidate 8 in F7 changed to solution
Passo 10
Hidden Singles
valore: 3.1
categoria doc: Getting_Started
8 in G2 is last in row
8 in J8 is last in column/box
Passo 11
Naked Pair
valore: 14.7
categoria doc: Naked_Candidates
Naked Pair 7/9 on cells {D5|F5} means
- 7 can be removed from B5
- 7 can be removed from H5
Passo 12
Hidden Pair
valore: 28.6
categoria doc: Hidden_Candidates
Hidden Pair 1/4 in Col 1, on cells {G1|H1}
- removes 6 from G1
- removes 6/7 from H1
Passo 13
Hidden Singles
valore: 2.8
categoria doc: Getting_Started
7 in H4 is last in row
Passo 14
Pointing Pairs
valore: 39.6
categoria doc: Intersection_Removal
Pair: between Box 3 and Col 8:
- 1 can be removed from H8
Passo 15
Pointing Pairs
valore: 39.2
categoria doc: Intersection_Removal
Pair: between Box 4 and Col 2:
- 3 can be removed from B2
Passo 16
Line/Unit Reduction
valore: 51.7
categoria doc: Intersection_Removal
Line/Box Reduction: 6s in box 9 remove the following in the same box:
- 6 can be removed from G7
Passo 17
Rectangle Elimination
valore: 64
categoria doc: Rectangle_Elimination
If +2[B5] then -2[B2] forcing +2[J2] which removes all 2s from Box 8, so B5 cannot be 2
Last candidate 4 in B5 changed to solution
Passo 18
Naked Singles
valore: 1.2
categoria doc: Getting_Started
Last candidate 2 in H5 changed to solution
Passo 19
Naked Singles
valore: 1.1
categoria doc: Getting_Started
Last candidate 6 in H8 changed to solution
Last candidate 9 in J6 changed to solution
Passo 20
Naked Singles
valore: 1
categoria doc: Getting_Started
Last candidate 1 in H7 changed to solution
Last candidate 6 in J4 changed to solution
Passo 21
Naked Singles
valore: 0.9
categoria doc: Getting_Started
Last candidate 4 in G4 changed to solution
Last candidate 2 in G7 changed to solution
Last candidate 4 in H1 changed to solution
Last candidate 7 in J1 changed to solution
Passo 22
Naked Singles
valore: 0.7
categoria doc: Getting_Started
Last candidate 3 in D7 changed to solution
Last candidate 1 in G1 changed to solution
Last candidate 6 in G3 changed to solution
Last candidate 2 in J2 changed to solution
Passo 23
Naked Singles
valore: 0.6
categoria doc: Getting_Started
Last candidate 7 in D3 changed to solution
Last candidate 5 in E7 changed to solution
Passo 24
Naked Singles
valore: 0.4
categoria doc: Getting_Started
Last candidate 6 in C7 changed to solution
Last candidate 6 in D2 changed to solution
Last candidate 9 in D5 changed to solution
Last candidate 4 in E8 changed to solution
Last candidate 4 in F2 changed to solution
Passo 25
Naked Singles
valore: 0.3
categoria doc: Getting_Started
Last candidate 7 in B2 changed to solution
Last candidate 3 in C1 changed to solution
Last candidate 2 in D8 changed to solution
Last candidate 3 in E2 changed to solution
Last candidate 7 in F5 changed to solution
Last candidate 9 in F8 changed to solution
Passo 26
Naked Singles
valore: 0.2
categoria doc: Getting_Started
Last candidate 6 in B1 changed to solution
Last candidate 2 in B6 changed to solution
Last candidate 5 in C8 changed to solution
Passo 27
Naked Singles
valore: 0
categoria doc: Getting_Started
Last candidate 1 in A8 changed to solution
Last candidate 5 in B3 changed to solution
Last candidate 2 in C3 changed to solution
Last candidate 9 in C4 changed to solution
Last candidate 7 in C6 changed to solution
Passo 28
Naked Singles
valore: 0
categoria doc: Getting_Started
Last candidate 5 in A4 changed to solution
Last candidate 1 in B4 changed to solution
Last candidate 3 in B8 changed to solution