Passi risolutivi (23)
Passo 1
Naked Singles
valore: 0
categoria doc: Getting_Started
Last candidate 6 in G5 changed to solution
Passo 2
Hidden Singles
valore: 5.8
categoria doc: Getting_Started
1 in B1 is last in column/box
4 in H3 is last in row/box
5 in H9 is last in column/box
8 in A7 is last in row/column/box
9 in D6 is last in row
Passo 3
Hidden Singles
valore: 5
categoria doc: Getting_Started
1 in C7 is last in column/box
5 in J6 is last in column/box
9 in H7 is last in row
Passo 4
Hidden Singles
valore: 4.6
categoria doc: Getting_Started
6 in H1 is last in row
6 in J7 is last in box
Passo 5
Naked Singles
valore: 2
categoria doc: Getting_Started
Last candidate 2 in D1 changed to solution
Passo 6
Naked Pair
valore: 19.7
categoria doc: Naked_Candidates
Naked Pair 4/6 on cells {D2|F2} means
- 6 can be removed from A2
- 6 can be removed from D3
- 4/6 can be removed from E2
- 6 can be removed from E3
Last candidate 3 in D3 changed to solution
Last candidate 5 in E2 changed to solution
Passo 7
Hidden Singles
valore: 3.6
categoria doc: Getting_Started
5 in A3 is last in row/box
5 in G1 is last in column
Passo 8
Hidden Singles
valore: 3.5
categoria doc: Getting_Started
6 in B3 is last in column/box
Passo 9
Hidden Singles
valore: 3.4
categoria doc: Getting_Started
9 in B9 is last in row
Passo 10
Hidden Singles
valore: 3.1
categoria doc: Getting_Started
9 in E8 is last in row/column/box
Passo 11
Naked Pair
valore: 15
categoria doc: Naked_Candidates
Naked Pair 7/8 on cells {E1|E3} means
- 8 can be removed from E4
- 8 can be removed from E6
- 7 can be removed from E7
- 7 can be removed from E9
Passo 12
Naked Pair
valore: 14.7
categoria doc: Naked_Candidates
Naked Pair 7/8 on cells {H4|H6} means
- 7/8 can be removed from J4
Passo 13
Unique Rectangle Type 1
valore: 57.8
categoria doc: Unique_Rectangle
Uniqueness Type 1 removing 4/6 at F4 because of D4,D2,F2
Passo 14
Unique Rectangle Type 1
valore: 56.7
categoria doc: Unique_Rectangle
Uniqueness Type 1 removing 7/8 at J3 because of E3,E1,J1
Passo 15
Hidden Singles
valore: 2.8
categoria doc: Getting_Started
8 in E3 is last in column
8 in J1 is last in row/box
Passo 16
Naked Singles
valore: 1.3
categoria doc: Getting_Started
Last candidate 7 in E1 changed to solution
Passo 17
Hidden Singles
valore: 2.6
categoria doc: Getting_Started
7 in G3 is last in column/box
7 in J8 is last in row
Passo 18
Hidden Singles
valore: 2.3
categoria doc: Getting_Started
7 in F7 is last in column
Passo 19
Line/Unit Reduction
valore: 43.5
categoria doc: Intersection_Removal
Line/Box Reduction: 2s in box 2 remove the following in the same box:
- 2 can be removed from A4
- 2 can be removed from A6
- 2 can be removed from C6
Passo 20
Rectangle Elimination
valore: 53.6
categoria doc: Rectangle_Elimination
If +4[A8] then -4[A5] forcing +4[E5] which removes all 4s from box 6, so A8 cannot be 4
Last candidate 2 in A8 changed to solution
Last candidate 7 in A9 changed to solution
Last candidate 3 in C9 changed to solution
Last candidate 4 in F8 changed to solution
Passo 21
Naked Singles
valore: 0.4
categoria doc: Getting_Started
Last candidate 9 in A2 changed to solution
Last candidate 4 in B7 changed to solution
Last candidate 2 in C3 changed to solution
Last candidate 9 in C5 changed to solution
Last candidate 7 in C6 changed to solution
Last candidate 3 in E7 changed to solution
Last candidate 6 in F2 changed to solution
Last candidate 2 in F9 changed to solution
Last candidate 8 in H6 changed to solution
Last candidate 2 in J2 changed to solution
Last candidate 9 in J3 changed to solution
Last candidate 4 in D2 changed to solution
Last candidate 6 in D4 changed to solution
Last candidate 6 in E9 changed to solution
Last candidate 3 in F6 changed to solution
Last candidate 7 in H4 changed to solution
Passo 22
Naked Singles
valore: 0.2
categoria doc: Getting_Started
Last candidate 2 in B6 changed to solution
Last candidate 1 in E6 changed to solution
Last candidate 8 in F4 changed to solution
Last candidate 6 in A6 changed to solution
Last candidate 3 in B4 changed to solution
Last candidate 4 in E5 changed to solution
Last candidate 1 in J4 changed to solution
Last candidate 3 in J5 changed to solution
Passo 23
Naked Singles
valore: 0
categoria doc: Getting_Started
Last candidate 4 in A4 changed to solution
Last candidate 1 in A5 changed to solution
Last candidate 2 in E4 changed to solution