Passi risolutivi (32)
Passo 1
Naked Singles
valore: 0
categoria doc: Getting_Started
Last candidate 4 in D5 changed to solution
Last candidate 3 in F5 changed to solution
Passo 2
Naked Singles
valore: 2.3
categoria doc: Getting_Started
Last candidate 2 in E6 changed to solution
Passo 3
Naked Singles
valore: 2.2
categoria doc: Getting_Started
Last candidate 7 in E4 changed to solution
Passo 4
Hidden Singles
valore: 4
categoria doc: Getting_Started
1 in B9 is last in row/box
1 in E7 is last in column
2 in C4 is last in column/box
4 in B2 is last in column/box
4 in C7 is last in row
4 in H6 is last in column/box
8 in C6 is last in column/box
Passo 5
Naked Pair
valore: 17.5
categoria doc: Naked_Candidates
Naked Pair 3/5 on cells {C1|C3} means
- 3/5 can be removed from A1
- 3 can be removed from A2
- 3/5 can be removed from B3
Passo 6
Hidden Singles
valore: 3.4
categoria doc: Getting_Started
3 in A8 is last in row
Passo 7
Hidden Pair
valore: 32.7
categoria doc: Hidden_Candidates
Hidden Pair 1/2 in Col 3, on cells {D3|J3}
- removes 6 from D3
- removes 3/6 from J3
Passo 8
Pointing Pairs
valore: 48.7
categoria doc: Intersection_Removal
Pair: between Box 8 and Row G:
- 3 can be removed from G3
Passo 9
Naked Pair
valore: 16.1
categoria doc: Naked_Candidates
Naked Pair 6/7 on cells {B3|G3} means
- 6 can be removed from E3
Passo 10
Pointing Pairs
valore: 47.5
categoria doc: Intersection_Removal
Pair: between Box 4 and Row E:
- 5 can be removed from E8
- 5 can be removed from E9
Passo 11
Pointing Pairs
valore: 46.6
categoria doc: Intersection_Removal
Pair: between Box 6 and Col 8:
- 6 can be removed from H8
- 6 can be removed from J8
Passo 12
Line/Box Reduction
valore: 61.1
categoria doc: Intersection_Removal
Pair: between Col 8 and Box 6:
- 8 can be removed from F7
- 8 can be removed from F9
Last candidate 9 in F7 changed to solution
Passo 13
Naked Singles
valore: 1.4
categoria doc: Getting_Started
Last candidate 4 in E9 changed to solution
Passo 14
Naked Singles
valore: 1.4
categoria doc: Getting_Started
Last candidate 6 in E8 changed to solution
Passo 15
Hidden Singles
valore: 2.7
categoria doc: Getting_Started
4 in J8 is last in row/column/box
Passo 16
Unique Rectangle Type 1
valore: 51.7
categoria doc: Unique_Rectangle
Uniqueness Type 1 removing 3/5 at E1 because of C1,C3,E3
Last candidate 9 in E1 changed to solution
Passo 17
Naked Singles
valore: 1.2
categoria doc: Getting_Started
Last candidate 3 in E2 changed to solution
Passo 18
Naked Singles
valore: 1.2
categoria doc: Getting_Started
Last candidate 5 in E3 changed to solution
Passo 19
Naked Singles
valore: 1.2
categoria doc: Getting_Started
Last candidate 3 in C3 changed to solution
Passo 20
Naked Singles
valore: 1.1
categoria doc: Getting_Started
Last candidate 5 in C1 changed to solution
Passo 21
Hidden Singles
valore: 2.2
categoria doc: Getting_Started
3 in J1 is last in row/column/box
Passo 22
Rectangle Elimination
valore: 53
categoria doc: Rectangle_Elimination
If +2[D8] then -2[D3] forcing +2[J3] which removes all 2s from box 9, so D8 cannot be 2
Last candidate 8 in D8 changed to solution
Passo 23
Hidden Singles
valore: 2
categoria doc: Getting_Started
8 in F2 is last in row/column/box
Passo 24
Rectangle Elimination
valore: 48.1
categoria doc: Rectangle_Elimination
If either +7[A7] or +7[H2] are ON then both are on because they are strongly linked through the hinge cell A2. If both are ON then this removes all 7s from box 9, so neither can be 7
Last candidate 8 in A7 changed to solution
Passo 25
Naked Singles
valore: 0.9
categoria doc: Getting_Started
Last candidate 5 in A9 changed to solution
Passo 26
Naked Singles
valore: 0.9
categoria doc: Getting_Started
Last candidate 6 in A5 changed to solution
Last candidate 7 in B8 changed to solution
Last candidate 2 in F9 changed to solution
Passo 27
Naked Singles
valore: 0.7
categoria doc: Getting_Started
Last candidate 2 in A1 changed to solution
Last candidate 6 in B3 changed to solution
Last candidate 5 in F8 changed to solution
Last candidate 2 in H8 changed to solution
Last candidate 9 in J9 changed to solution
Passo 28
Naked Singles
valore: 0.5
categoria doc: Getting_Started
Last candidate 7 in A2 changed to solution
Last candidate 7 in G3 changed to solution
Last candidate 8 in G9 changed to solution
Last candidate 1 in J5 changed to solution
Passo 29
Naked Singles
valore: 0.4
categoria doc: Getting_Started
Last candidate 6 in G7 changed to solution
Last candidate 2 in J3 changed to solution
Passo 30
Naked Singles
valore: 0.3
categoria doc: Getting_Started
Last candidate 1 in D3 changed to solution
Last candidate 3 in G4 changed to solution
Last candidate 7 in H7 changed to solution
Last candidate 6 in J2 changed to solution
Passo 31
Naked Singles
valore: 0.2
categoria doc: Getting_Started
Last candidate 5 in B4 changed to solution
Last candidate 6 in D1 changed to solution
Last candidate 2 in D2 changed to solution
Last candidate 9 in G6 changed to solution
Last candidate 1 in H1 changed to solution
Last candidate 9 in H2 changed to solution
Passo 32
Naked Singles
valore: 0.1
categoria doc: Getting_Started
Last candidate 9 in B5 changed to solution
Last candidate 3 in B6 changed to solution
Last candidate 6 in H4 changed to solution
Last candidate 5 in H5 changed to solution