Passi risolutivi (33)
Passo 1
Hidden Singles
valore: 5.1
categoria doc: Getting_Started
1 in G9 is last in row/column/box
2 in D5 is last in row/column/box
7 in E5 is last in row/box
8 in A8 is last in box
8 in D3 is last in row/box
8 in H7 is last in column
8 in J5 is last in column/box
Passo 2
Naked Singles
valore: 2.3
categoria doc: Getting_Started
Last candidate 5 in A5 changed to solution
Passo 3
Naked Singles
valore: 2.2
categoria doc: Getting_Started
Last candidate 7 in A4 changed to solution
Passo 4
Naked Singles
valore: 2.1
categoria doc: Getting_Started
Last candidate 9 in A6 changed to solution
Passo 5
Naked Singles
valore: 2.1
categoria doc: Getting_Started
Last candidate 4 in A2 changed to solution
Passo 6
Naked Singles
valore: 2
categoria doc: Getting_Started
Last candidate 2 in A1 changed to solution
Passo 7
Naked Singles
valore: 1.9
categoria doc: Getting_Started
Last candidate 3 in H1 changed to solution
Passo 8
Naked Singles
valore: 1.8
categoria doc: Getting_Started
Last candidate 8 in C1 changed to solution
Last candidate 9 in G1 changed to solution
Passo 9
Naked Singles
valore: 1.7
categoria doc: Getting_Started
Last candidate 5 in B1 changed to solution
Passo 10
Naked Singles
valore: 1.7
categoria doc: Getting_Started
Last candidate 4 in F1 changed to solution
Passo 11
Hidden Singles
valore: 3.1
categoria doc: Getting_Started
2 in B8 is last in row/column/box
2 in H3 is last in row/column/box
4 in C9 is last in row/box
9 in J9 is last in row/box
Passo 12
Naked Pair
valore: 13.9
categoria doc: Naked_Candidates
Naked Pair 6/7 on cells {B7|B9} means
- 7 can be removed from B2
- 7 can be removed from B3
- 6 can be removed from B6
Last candidate 3 in B6 changed to solution
Passo 13
Hidden Singles
valore: 2.5
categoria doc: Getting_Started
7 in C3 is last in column
Passo 14
Hidden Singles
valore: 2.4
categoria doc: Getting_Started
3 in C2 is last in row/box
Passo 15
Pointing Pairs
valore: 34.3
categoria doc: Intersection_Removal
Pair: between Box 5 and Row F:
- 1 can be removed from F3
Passo 16
Pointing Pairs
valore: 33.8
categoria doc: Intersection_Removal
Pair: between Box 5 and Row D:
- 4 can be removed from D7
Passo 17
Hidden Singles
valore: 2.2
categoria doc: Getting_Started
4 in E7 is last in column
Passo 18
Line/Box Reduction
valore: 42.4
categoria doc: Intersection_Removal
Pair: between Row F and Box 5:
- 5 can be removed from D4
- 5 can be removed from D6
Passo 19
Line/Box Reduction
valore: 41.3
categoria doc: Intersection_Removal
Triple: between Col 8 and Box 9:
- 6 can be removed from G7
- 6 can be removed from H9
Passo 20
Rectangle Elimination
valore: 50.9
categoria doc: Rectangle_Elimination
If +3[G7] then -3[D7] forcing +3[D4] which removes all 3s from box 8, so G7 cannot be 3
Last candidate 7 in G7 changed to solution
Passo 21
Naked Singles
valore: 1
categoria doc: Getting_Started
Last candidate 6 in B7 changed to solution
Last candidate 5 in H9 changed to solution
Passo 22
Naked Singles
valore: 0.8
categoria doc: Getting_Started
Last candidate 7 in B9 changed to solution
Last candidate 6 in D9 changed to solution
Passo 23
Naked Singles
valore: 0.8
categoria doc: Getting_Started
Last candidate 4 in D6 changed to solution
Passo 24
Naked Singles
valore: 0.7
categoria doc: Getting_Started
Last candidate 3 in D4 changed to solution
Passo 25
Naked Singles
valore: 0.7
categoria doc: Getting_Started
Last candidate 9 in D7 changed to solution
Passo 26
Naked Singles
valore: 0.6
categoria doc: Getting_Started
Last candidate 5 in D2 changed to solution
Last candidate 3 in F7 changed to solution
Passo 27
Naked Singles
valore: 0.6
categoria doc: Getting_Started
Last candidate 1 in E2 changed to solution
Last candidate 5 in E8 changed to solution
Last candidate 9 in F3 changed to solution
Passo 28
Naked Singles
valore: 0.5
categoria doc: Getting_Started
Last candidate 9 in B2 changed to solution
Last candidate 1 in B3 changed to solution
Last candidate 3 in E3 changed to solution
Passo 29
Hidden Singles
valore: 0.7
categoria doc: Getting_Started
3 in G5 is last in column/box
3 in J8 is last in row
5 in F4 is last in column
5 in G6 is last in row/box
7 in H2 is last in row
7 in J6 is last in column/box
Passo 30
Naked Singles
valore: 0.2
categoria doc: Getting_Started
Last candidate 6 in F6 changed to solution
Last candidate 6 in G8 changed to solution
Last candidate 6 in J2 changed to solution
Passo 31
Naked Singles
valore: 0.1
categoria doc: Getting_Started
Last candidate 1 in F5 changed to solution
Last candidate 4 in H8 changed to solution
Last candidate 4 in J4 changed to solution
Passo 32
Naked Singles
valore: 0.1
categoria doc: Getting_Started
Last candidate 6 in C5 changed to solution
Last candidate 6 in H4 changed to solution
Passo 33
Naked Singles
valore: 0
categoria doc: Getting_Started
Last candidate 1 in C4 changed to solution