Passi risolutivi (29)
Passo 1
Naked Singles
valore: 0
categoria doc: Getting_Started
Last candidate 3 in D7 changed to solution
Last candidate 2 in F6 changed to solution
Passo 2
Naked Singles
valore: 2.6
categoria doc: Getting_Started
Last candidate 5 in E6 changed to solution
Last candidate 7 in F7 changed to solution
Passo 3
Naked Singles
valore: 2.5
categoria doc: Getting_Started
Last candidate 2 in E7 changed to solution
Last candidate 3 in F3 changed to solution
Passo 4
Naked Singles
valore: 2.4
categoria doc: Getting_Started
Last candidate 9 in F2 changed to solution
Passo 5
Hidden Singles
valore: 3.8
categoria doc: Getting_Started
1 in C5 is last in row/box
2 in C8 is last in column/box
2 in G2 is last in column/box
3 in H2 is last in column/box
5 in B5 is last in row
5 in C3 is last in column/box
5 in G7 is last in row/column/box
6 in J9 is last in box
9 in A1 is last in column/box
9 in G5 is last in row/box
Passo 6
Naked Singles
valore: 1.6
categoria doc: Getting_Started
Last candidate 8 in H5 changed to solution
Passo 7
Naked Singles
valore: 1.5
categoria doc: Getting_Started
Last candidate 3 in E5 changed to solution
Last candidate 2 in J5 changed to solution
Passo 8
Naked Singles
valore: 1.4
categoria doc: Getting_Started
Last candidate 6 in A5 changed to solution
Passo 9
Naked Singles
valore: 1.4
categoria doc: Getting_Started
Last candidate 8 in A7 changed to solution
Passo 10
Naked Singles
valore: 1.3
categoria doc: Getting_Started
Last candidate 6 in C7 changed to solution
Passo 11
Hidden Singles
valore: 2.3
categoria doc: Getting_Started
2 in A4 is last in row/column/box
3 in J8 is last in row/column/box
6 in B2 is last in row/box
6 in E3 is last in column
6 in H1 is last in row/box
Passo 12
Hidden Singles
valore: 1.9
categoria doc: Getting_Started
3 in A9 is last in row
3 in C4 is last in column/box
8 in G8 is last in column/box
Passo 13
Pointing Pairs
valore: 25.2
categoria doc: Intersection_Removal
Pair: between Box 8 and Row J:
- 4 can be removed from J1
- 4 can be removed from J3
Passo 14
Line/Box Reduction
valore: 32.5
categoria doc: Intersection_Removal
Pair: between Col 3 and Box 6:
- 7 can be removed from G1
- 7 can be removed from J1
Passo 15
Y-Wing
valore: 63.8
categoria doc: Y_Wing_Strategy
Y-Wing pattern. Hinge: G9 (1/7), wings C9 G1, therefore
- 4 can be removed from C1
Passo 16
Pointing Pairs
valore: 23.5
categoria doc: Intersection_Removal
Pair: between Box 1 and Col 1:
- 4 can be removed from E2
Passo 17
Rectangle Elimination
valore: 37.8
categoria doc: Rectangle_Elimination
If either +7[H6] or +7[B8] are ON then both are on because they are strongly linked through the hinge cell H8. If both are ON then this removes all 7s from box 2, so neither can be 7
Last candidate 1 in H6 changed to solution
Passo 18
Naked Singles
valore: 0.7
categoria doc: Getting_Started
Last candidate 7 in H8 changed to solution
Passo 19
Naked Singles
valore: 0.7
categoria doc: Getting_Started
Last candidate 1 in G9 changed to solution
Passo 20
Naked Singles
valore: 0.6
categoria doc: Getting_Started
Last candidate 4 in G1 changed to solution
Passo 21
Naked Singles
valore: 0.6
categoria doc: Getting_Started
Last candidate 7 in G3 changed to solution
Passo 22
Naked Singles
valore: 0.6
categoria doc: Getting_Started
Last candidate 8 in J3 changed to solution
Passo 23
Naked Singles
valore: 0.5
categoria doc: Getting_Started
Last candidate 4 in D3 changed to solution
Last candidate 1 in J1 changed to solution
Passo 24
Naked Singles
valore: 0.5
categoria doc: Getting_Started
Last candidate 9 in D8 changed to solution
Passo 25
Naked Singles
valore: 0.4
categoria doc: Getting_Started
Last candidate 4 in B8 changed to solution
Last candidate 8 in D4 changed to solution
Last candidate 4 in E9 changed to solution
Passo 26
Naked Singles
valore: 0.3
categoria doc: Getting_Started
Last candidate 7 in B4 changed to solution
Last candidate 7 in C9 changed to solution
Last candidate 9 in E4 changed to solution
Last candidate 1 in E8 changed to solution
Passo 27
Naked Singles
valore: 0.2
categoria doc: Getting_Started
Last candidate 4 in A6 changed to solution
Last candidate 9 in B9 changed to solution
Last candidate 8 in C1 changed to solution
Last candidate 4 in J4 changed to solution
Passo 28
Naked Singles
valore: 0.1
categoria doc: Getting_Started
Last candidate 7 in A2 changed to solution
Last candidate 4 in C2 changed to solution
Last candidate 7 in E1 changed to solution
Last candidate 7 in J6 changed to solution
Passo 29
Naked Singles
valore: 0
categoria doc: Getting_Started
Last candidate 8 in E2 changed to solution