Passi risolutivi (14)
Passo 1
Naked Singles
valore: 0
categoria doc: Getting_Started
Last candidate 3 in C5 changed to solution
Passo 2
Hidden Singles
valore: 4.9
categoria doc: Getting_Started
1 in D7 is last in row/box
1 in H1 is last in column/box
7 in G8 is last in row/box
8 in B6 is last in column/box
9 in J7 is last in column/box
Passo 3
Hidden Singles
valore: 4.1
categoria doc: Getting_Started
1 in J8 is last in row/column/box
4 in D2 is last in row
4 in F8 is last in box
5 in E1 is last in column
Passo 4
Hidden Pair
valore: 37.4
categoria doc: Hidden_Candidates
Hidden Pair 2/4 in Box 8, on cells {H4|J5}
- removes 3/5/9 from H4
- removes 6 from J5
Passo 5
Hidden Singles
valore: 3.7
categoria doc: Getting_Started
3 in F4 is last in column
Passo 6
Pointing Pairs
valore: 53.2
categoria doc: Intersection_Removal
Pair: between Box 1 and Col 2:
- 2 can be removed from E2
Passo 7
Pointing Pairs
valore: 52.4
categoria doc: Intersection_Removal
Pair: between Box 7 and Col 2:
- 3 can be removed from A2
- 3 can be removed from B2
Passo 8
Pointing Pairs
valore: 52
categoria doc: Intersection_Removal
Pair: between Box 3 and Col 8:
- 5 can be removed from H8
Passo 9
Rectangle Elimination
valore: 85.3
categoria doc: Rectangle_Elimination
If either +2[D9] or +2[H4] are ON then both are on because they are strongly linked through the hinge cell D4. If both are ON then this removes all 2s from box 9, so neither can be 2
Last candidate 4 in H4 changed to solution
Last candidate 2 in J5 changed to solution
Last candidate 5 in J9 changed to solution
Passo 10
Naked Singles
valore: 1.4
categoria doc: Getting_Started
Last candidate 9 in H3 changed to solution
Passo 11
Hidden Singles
valore: 2.7
categoria doc: Getting_Started
2 in D4 is last in row/column/box
4 in A5 is last in column/box
4 in B7 is last in row
4 in J3 is last in row/column/box
9 in F6 is last in column
Passo 12
Naked Singles
valore: 0.7
categoria doc: Getting_Started
Last candidate 6 in A3 changed to solution
Last candidate 7 in E3 changed to solution
Last candidate 6 in E5 changed to solution
Last candidate 6 in F1 changed to solution
Last candidate 2 in F3 changed to solution
Last candidate 7 in F9 changed to solution
Last candidate 9 in G5 changed to solution
Last candidate 8 in D1 changed to solution
Last candidate 7 in D6 changed to solution
Last candidate 6 in D9 changed to solution
Last candidate 9 in E2 changed to solution
Last candidate 5 in G4 changed to solution
Last candidate 3 in H6 changed to solution
Last candidate 6 in J6 changed to solution
Passo 13
Naked Singles
valore: 0.2
categoria doc: Getting_Started
Last candidate 8 in A2 changed to solution
Last candidate 9 in A4 changed to solution
Last candidate 7 in B4 changed to solution
Last candidate 5 in C6 changed to solution
Last candidate 2 in C8 changed to solution
Last candidate 6 in G2 changed to solution
Last candidate 5 in H2 changed to solution
Last candidate 8 in H8 changed to solution
Last candidate 2 in H9 changed to solution
Last candidate 3 in J2 changed to solution
Last candidate 3 in A1 changed to solution
Last candidate 5 in A8 changed to solution
Last candidate 9 in B1 changed to solution
Last candidate 2 in B2 changed to solution
Last candidate 3 in B9 changed to solution
Last candidate 7 in C2 changed to solution
Last candidate 3 in E8 changed to solution
Last candidate 8 in E9 changed to solution
Passo 14
Naked Singles
valore: 0
categoria doc: Getting_Started
Last candidate 6 in B8 changed to solution