Passi risolutivi (28)
Passo 1
Hidden Singles
valore: 5.9
categoria doc: Getting_Started
4 in B5 is last in column/box
6 in C4 is last in row/box
6 in J5 is last in column
7 in D7 is last in row
7 in F6 is last in column/box
9 in C6 is last in row/box
9 in G9 is last in column
Passo 2
Naked Singles
valore: 1
categoria doc: Getting_Started
Last candidate 2 in F9 changed to solution
Passo 3
Naked Singles
valore: 2.4
categoria doc: Getting_Started
Last candidate 4 in F8 changed to solution
Passo 4
Naked Singles
valore: 2.2
categoria doc: Getting_Started
Last candidate 8 in E8 changed to solution
Last candidate 6 in F7 changed to solution
Passo 5
Naked Singles
valore: 2.2
categoria doc: Getting_Started
Last candidate 9 in E7 changed to solution
Passo 6
Hidden Singles
valore: 3.6
categoria doc: Getting_Started
1 in A6 is last in column
4 in C7 is last in row/column/box
4 in E3 is last in row/box
4 in G1 is last in column
7 in J8 is last in row/box
8 in D5 is last in row/box
9 in D2 is last in column
9 in H5 is last in column/box
9 in J3 is last in row
Passo 7
Naked Singles
valore: 1.5
categoria doc: Getting_Started
Last candidate 3 in A5 changed to solution
Passo 8
Naked Singles
valore: 1.3
categoria doc: Getting_Started
Last candidate 8 in A4 changed to solution
Last candidate 2 in E5 changed to solution
Last candidate 1 in F5 changed to solution
Passo 9
Naked Singles
valore: 1.3
categoria doc: Getting_Started
Last candidate 7 in A9 changed to solution
Passo 10
Hidden Singles
valore: 2.2
categoria doc: Getting_Started
3 in H7 is last in row
6 in E2 is last in row/box
6 in G3 is last in column
7 in C3 is last in row/column/box
Passo 11
Naked Pair
valore: 9.9
categoria doc: Naked_Candidates
Naked Pair 3/8 on cells {B9|C9} means
- 8 can be removed from B7
Passo 12
Naked Pair
valore: 9.6
categoria doc: Naked_Candidates
Naked Pair 1/5 on cells {B2|B7} means
- 1/5 can be removed from B3
Passo 13
Hidden Singles
valore: 1.9
categoria doc: Getting_Started
1 in D3 is last in column
Passo 14
Naked Singles
valore: 0.9
categoria doc: Getting_Started
Last candidate 2 in D1 changed to solution
Passo 15
Naked Pair
valore: 8.5
categoria doc: Naked_Candidates
Naked Pair 1/2 on cells {C2|C8} means
- 1 can be removed from C1
Passo 16
Hidden Singles
valore: 1.7
categoria doc: Getting_Started
1 in J1 is last in column
Passo 17
Pointing Pairs
valore: 22.7
categoria doc: Intersection_Removal
Pair: between Box 3 and Col 7:
- 5 can be removed from G7
- 5 can be removed from J7
Passo 18
Line/Unit Reduction
valore: 29.2
categoria doc: Intersection_Removal
Line/Box Reduction: 5s in box 8 remove the following in the same box:
- 5 can be removed from G4
- 5 can be removed from G6
Passo 19
Rectangle Elimination
valore: 35.8
categoria doc: Rectangle_Elimination
If +2[G7] then -2[A7] forcing +2[A3] which removes all 2s from Box 7, so G7 cannot be 2
Passo 20
Rectangle Elimination
valore: 35.1
categoria doc: Rectangle_Elimination
If +2[H8] then -2[C8] forcing +2[C2] which removes all 2s from Box 7, so H8 cannot be 2
Last candidate 5 in H8 changed to solution
Passo 21
Naked Singles
valore: 0.6
categoria doc: Getting_Started
Last candidate 8 in H1 changed to solution
Passo 22
Naked Singles
valore: 0.5
categoria doc: Getting_Started
Last candidate 3 in C1 changed to solution
Last candidate 2 in H3 changed to solution
Passo 23
Naked Singles
valore: 0.4
categoria doc: Getting_Started
Last candidate 5 in A3 changed to solution
Last candidate 8 in B3 changed to solution
Last candidate 8 in C9 changed to solution
Last candidate 5 in F1 changed to solution
Last candidate 5 in G2 changed to solution
Passo 24
Naked Singles
valore: 0.3
categoria doc: Getting_Started
Last candidate 2 in A7 changed to solution
Last candidate 1 in B2 changed to solution
Last candidate 3 in B9 changed to solution
Last candidate 3 in F3 changed to solution
Passo 25
Naked Singles
valore: 0.2
categoria doc: Getting_Started
Last candidate 5 in B7 changed to solution
Last candidate 2 in C2 changed to solution
Last candidate 1 in C8 changed to solution
Last candidate 8 in J7 changed to solution
Passo 26
Naked Singles
valore: 0.1
categoria doc: Getting_Started
Last candidate 1 in G7 changed to solution
Last candidate 2 in G8 changed to solution
Last candidate 5 in J6 changed to solution
Passo 27
Naked Singles
valore: 0
categoria doc: Getting_Started
Last candidate 3 in E6 changed to solution
Last candidate 3 in G4 changed to solution
Last candidate 2 in J4 changed to solution
Passo 28
Naked Singles
valore: 0
categoria doc: Getting_Started
Last candidate 5 in E4 changed to solution
Last candidate 8 in G6 changed to solution