Passi risolutivi (26)
Passo 1
Hidden Singles
valore: 6.1
categoria doc: Getting_Started
6 in G9 is last in row
6 in J3 is last in column/box
7 in E5 is last in row
7 in F9 is last in column/box
Passo 2
Hidden Singles
valore: 5.1
categoria doc: Getting_Started
3 in E2 is last in row
5 in D9 is last in column/box
6 in A7 is last in row/box
7 in A6 is last in column
7 in J4 is last in row/box
9 in G2 is last in row
Passo 3
Hidden Singles
valore: 4.2
categoria doc: Getting_Started
2 in H6 is last in box
4 in G5 is last in row
5 in E3 is last in row
5 in F6 is last in box
7 in B2 is last in row/column/box
8 in A9 is last in row
8 in B4 is last in box
Passo 4
Naked Singles
valore: 1.7
categoria doc: Getting_Started
Last candidate 1 in G4 changed to solution
Passo 5
Naked Singles
valore: 1.6
categoria doc: Getting_Started
Last candidate 6 in F4 changed to solution
Last candidate 8 in G6 changed to solution
Last candidate 3 in J5 changed to solution
Passo 6
Naked Singles
valore: 1.5
categoria doc: Getting_Started
Last candidate 3 in D4 changed to solution
Passo 7
Naked Singles
valore: 1.4
categoria doc: Getting_Started
Last candidate 2 in C4 changed to solution
Last candidate 1 in D6 changed to solution
Passo 8
Naked Singles
valore: 1.4
categoria doc: Getting_Started
Last candidate 3 in C6 changed to solution
Passo 9
Hidden Singles
valore: 2.4
categoria doc: Getting_Started
2 in D2 is last in box
2 in J9 is last in column
3 in A1 is last in row/column/box
3 in H8 is last in row/column/box
5 in J2 is last in column
6 in D8 is last in row/column/box
Passo 10
Naked Singles
valore: 1
categoria doc: Getting_Started
Last candidate 1 in A2 changed to solution
Passo 11
Naked Singles
valore: 0.9
categoria doc: Getting_Started
Last candidate 9 in A5 changed to solution
Passo 12
Naked Singles
valore: 0.9
categoria doc: Getting_Started
Last candidate 2 in A3 changed to solution
Passo 13
Naked Pair
valore: 8.7
categoria doc: Naked_Candidates
Naked Pair 2/8 on cells {E7|E8} means
- 8 can be removed from F8
Passo 14
Hidden Pair
valore: 16.5
categoria doc: Hidden_Candidates
Hidden Pair 1/8 in Col 1, on cells {F1|J1}
- removes 4/9 from F1
- removes 4 from J1
Passo 15
Pointing Pairs
valore: 23.9
categoria doc: Intersection_Removal
Pair: between Box 7 and Row H:
- 4 can be removed from H7
- 4 can be removed from H9
Last candidate 9 in H9 changed to solution
Passo 16
Naked Singles
valore: 0.7
categoria doc: Getting_Started
Last candidate 4 in C9 changed to solution
Passo 17
Rectangle Elimination
valore: 33.7
categoria doc: Rectangle_Elimination
If +9[B7] then -9[B3] forcing +9[F3] which removes all 9s from Box 6, so B7 cannot be 9
Passo 18
Hidden Singles
valore: 1.3
categoria doc: Getting_Started
9 in D7 is last in column
Passo 19
Naked Singles
valore: 0.5
categoria doc: Getting_Started
Last candidate 4 in D1 changed to solution
Last candidate 4 in F8 changed to solution
Passo 20
Naked Singles
valore: 0.5
categoria doc: Getting_Started
Last candidate 8 in F2 changed to solution
Passo 21
Naked Singles
valore: 0.4
categoria doc: Getting_Started
Last candidate 1 in F1 changed to solution
Last candidate 4 in H2 changed to solution
Passo 22
Naked Singles
valore: 0.3
categoria doc: Getting_Started
Last candidate 9 in F3 changed to solution
Last candidate 1 in H3 changed to solution
Last candidate 8 in J1 changed to solution
Passo 23
Naked Singles
valore: 0.2
categoria doc: Getting_Started
Last candidate 4 in B3 changed to solution
Last candidate 8 in H7 changed to solution
Last candidate 1 in J8 changed to solution
Passo 24
Naked Singles
valore: 0.1
categoria doc: Getting_Started
Last candidate 9 in C8 changed to solution
Last candidate 2 in E7 changed to solution
Last candidate 4 in J7 changed to solution
Passo 25
Naked Singles
valore: 0
categoria doc: Getting_Started
Last candidate 1 in B7 changed to solution
Last candidate 2 in B8 changed to solution
Last candidate 5 in C1 changed to solution
Last candidate 8 in E8 changed to solution
Passo 26
Naked Singles
valore: 0
categoria doc: Getting_Started
Last candidate 9 in B1 changed to solution
Last candidate 5 in B5 changed to solution
Last candidate 1 in C5 changed to solution