Passi risolutivi (21)
Passo 1
Naked Singles
valore: 1
categoria doc: Getting_Started
Last candidate 9 in A2 changed to solution
Passo 2
Hidden Singles
valore: 5.1
categoria doc: Getting_Started
3 in B6 is last in row/column/box
3 in H2 is last in column
4 in H4 is last in column/box
5 in A9 is last in row/box
5 in E8 is last in column
5 in G5 is last in box
5 in J1 is last in row
Passo 3
Hidden Singles
valore: 4.2
categoria doc: Getting_Started
2 in H5 is last in box
3 in J9 is last in row/box
5 in F4 is last in row/column/box
6 in A4 is last in row
6 in D6 is last in column
Passo 4
Hidden Singles
valore: 3.6
categoria doc: Getting_Started
1 in E6 is last in column
2 in D4 is last in column/box
2 in F9 is last in row
Passo 5
Hidden Singles
valore: 3.4
categoria doc: Getting_Started
2 in C8 is last in row
Passo 6
Naked Pair
valore: 16.1
categoria doc: Naked_Candidates
Naked Pair 4/8 on cells {E2|E9} means
- 4/8 can be removed from E1
- 8 can be removed from E4
Passo 7
Pointing Pairs
valore: 47.5
categoria doc: Intersection_Removal
Pair: between Box 9 and Row H:
- 6 can be removed from H1
- 6 can be removed from H3
Passo 8
Pointing Pairs
valore: 46.6
categoria doc: Intersection_Removal
Pair: between Box 5 and Col 5:
- 8 can be removed from B5
- 8 can be removed from C5
Passo 9
Rectangle Elimination
valore: 76.3
categoria doc: Rectangle_Elimination
If either +4[J3] or +4[B8] are ON then both are on because they are strongly linked through the hinge cell J8. If both are ON then this removes all 4s from Box 1, so neither can be 4
Last candidate 9 in J3 changed to solution
Passo 10
Naked Singles
valore: 1.4
categoria doc: Getting_Started
Last candidate 1 in H3 changed to solution
Last candidate 8 in J6 changed to solution
Passo 11
Naked Singles
valore: 1.2
categoria doc: Getting_Started
Last candidate 7 in G6 changed to solution
Last candidate 8 in H1 changed to solution
Last candidate 4 in J8 changed to solution
Passo 12
Naked Singles
valore: 1.1
categoria doc: Getting_Started
Last candidate 8 in G7 changed to solution
Last candidate 9 in H6 changed to solution
Last candidate 6 in H8 changed to solution
Passo 13
Naked Singles
valore: 0.9
categoria doc: Getting_Started
Last candidate 8 in B8 changed to solution
Last candidate 3 in F7 changed to solution
Last candidate 7 in H9 changed to solution
Passo 14
Hidden Singles
valore: 1.7
categoria doc: Getting_Started
3 in D3 is last in row/column/box
6 in B9 is last in row/column/box
8 in C4 is last in row/column/box
8 in E2 is last in column/box
8 in F5 is last in row
Passo 15
Naked Singles
valore: 0.6
categoria doc: Getting_Started
Last candidate 9 in D5 changed to solution
Last candidate 4 in E9 changed to solution
Passo 16
Naked Singles
valore: 0.4
categoria doc: Getting_Started
Last candidate 1 in C9 changed to solution
Last candidate 4 in D1 changed to solution
Last candidate 1 in D7 changed to solution
Last candidate 7 in E4 changed to solution
Passo 17
Naked Singles
valore: 0.3
categoria doc: Getting_Started
Last candidate 7 in A7 changed to solution
Last candidate 9 in B4 changed to solution
Last candidate 7 in C5 changed to solution
Last candidate 8 in D9 changed to solution
Last candidate 9 in E1 changed to solution
Passo 18
Naked Singles
valore: 0.2
categoria doc: Getting_Started
Last candidate 1 in A1 changed to solution
Last candidate 1 in B5 changed to solution
Last candidate 4 in B7 changed to solution
Last candidate 4 in C3 changed to solution
Passo 19
Naked Singles
valore: 0.1
categoria doc: Getting_Started
Last candidate 2 in B2 changed to solution
Last candidate 9 in C7 changed to solution
Last candidate 6 in G3 changed to solution
Passo 20
Naked Singles
valore: 0
categoria doc: Getting_Started
Last candidate 7 in B1 changed to solution
Last candidate 7 in F3 changed to solution
Last candidate 2 in G1 changed to solution
Last candidate 4 in G2 changed to solution
Passo 21
Naked Singles
valore: 0
categoria doc: Getting_Started
Last candidate 6 in F1 changed to solution