Passi risolutivi (28)
Passo 1
Naked Singles
valore: 0
categoria doc: Getting_Started
Last candidate 7 in A6 changed to solution
Last candidate 5 in B6 changed to solution
Passo 2
Naked Singles
valore: 2.8
categoria doc: Getting_Started
Last candidate 3 in C4 changed to solution
Passo 3
Naked Singles
valore: 2.6
categoria doc: Getting_Started
Last candidate 1 in A4 changed to solution
Last candidate 6 in C5 changed to solution
Passo 4
Hidden Singles
valore: 4.6
categoria doc: Getting_Started
1 in D8 is last in row/box
5 in C1 is last in row/column/box
5 in D7 is last in row
5 in E4 is last in column/box
6 in E1 is last in box
6 in J3 is last in column
7 in C8 is last in row/box
Passo 5
Hidden Singles
valore: 3.8
categoria doc: Getting_Started
5 in G9 is last in row/column/box
6 in G6 is last in column/box
7 in E5 is last in row/box
Passo 6
Hidden Singles
valore: 3.6
categoria doc: Getting_Started
1 in H9 is last in column/box
Passo 7
Hidden Singles
valore: 3.3
categoria doc: Getting_Started
6 in F9 is last in column
6 in H8 is last in row/box
Passo 8
Line/Unit Reduction
valore: 63.8
categoria doc: Intersection_Removal
Line/Box Reduction: 2s in box 6 remove the following in the same box:
- 2 can be removed from E9
- 2 can be removed from F7
Passo 9
Line/Unit Reduction
valore: 62.2
categoria doc: Intersection_Removal
Line/Box Reduction: 4s in box 7 remove the following in the same box:
- 4 can be removed from G1
- 4 can be removed from G2
- 4 can be removed from J1
Passo 10
Y-Wing
valore: 121
categoria doc: Y_Wing_Strategy
Y-Wing pattern. Hinge: J6 (4/9), wings G5 J1, therefore
- 8 can be removed from G1
- 8 can be removed from G2
- 8 can be removed from J4
Passo 11
Hidden Singles
valore: 2.9
categoria doc: Getting_Started
8 in F4 is last in column
8 in G5 is last in row/box
8 in J1 is last in row/box
Passo 12
Hidden Singles
valore: 2.5
categoria doc: Getting_Started
4 in J6 is last in box
9 in D6 is last in box
9 in F2 is last in row
Passo 13
Naked Singles
valore: 1.1
categoria doc: Getting_Started
Last candidate 2 in E6 changed to solution
Passo 14
Hidden Singles
valore: 2
categoria doc: Getting_Started
2 in F8 is last in row/column/box
9 in C3 is last in column
Passo 15
Pointing Pairs
valore: 28.1
categoria doc: Intersection_Removal
Pair: between Box 6 and Row E:
- 8 can be removed from E2
Passo 16
Aligned Pair Exclusion
valore: 258
categoria doc: Aligned_Pair_Exclusion
Some solution combinations in the two gray cells would empty at least one of the coloured cells. Removing those combinations create eliminations in the gray cells.
Pair B2 / C2 reduced from 1/3/8->1/3/8 and 2/4->2
- Pair 4/8 found in ALS {A3}
- Pair 3/4 found in ALS {E2}
- Combinations of 1/4/7 found in ALS {G2,H2}
Last candidate 2 in C2 changed to solution
Passo 17
Naked Singles
valore: 0.9
categoria doc: Getting_Started
Last candidate 4 in C9 changed to solution
Passo 18
Hidden Singles
valore: 1.6
categoria doc: Getting_Started
2 in D1 is last in row/column/box
Passo 19
Pointing Pairs
valore: 22.7
categoria doc: Intersection_Removal
Pair: between Box 4 and Col 2:
- 3 can be removed from B2
Passo 20
XYZ Wing
valore: 89.1
categoria doc: XYZ_Wing
XYZ-Wing pattern. Hinge: A9 (2/3/8), wings A7 E9, therefore
- 3 can be removed from B9
Passo 21
Hidden Singles
valore: 1.5
categoria doc: Getting_Started
3 in B1 is last in row
Passo 22
Naked Singles
valore: 0.7
categoria doc: Getting_Started
Last candidate 4 in A1 changed to solution
Passo 23
Naked Singles
valore: 0.7
categoria doc: Getting_Started
Last candidate 8 in A3 changed to solution
Last candidate 9 in H1 changed to solution
Passo 24
Naked Singles
valore: 0.6
categoria doc: Getting_Started
Last candidate 1 in B2 changed to solution
Last candidate 4 in D3 changed to solution
Last candidate 1 in G1 changed to solution
Last candidate 7 in H4 changed to solution
Passo 25
Naked Singles
valore: 0.4
categoria doc: Getting_Started
Last candidate 3 in D5 changed to solution
Last candidate 3 in E2 changed to solution
Last candidate 7 in G2 changed to solution
Last candidate 4 in H2 changed to solution
Last candidate 9 in J4 changed to solution
Passo 26
Naked Singles
valore: 0.3
categoria doc: Getting_Started
Last candidate 8 in D2 changed to solution
Last candidate 8 in E9 changed to solution
Last candidate 4 in F5 changed to solution
Last candidate 4 in G7 changed to solution
Last candidate 2 in J9 changed to solution
Passo 27
Naked Singles
valore: 0.1
categoria doc: Getting_Started
Last candidate 3 in A9 changed to solution
Last candidate 9 in B9 changed to solution
Last candidate 4 in E8 changed to solution
Last candidate 3 in F7 changed to solution
Last candidate 9 in G8 changed to solution
Last candidate 7 in J7 changed to solution
Passo 28
Naked Singles
valore: 0
categoria doc: Getting_Started
Last candidate 2 in A7 changed to solution
Last candidate 8 in B8 changed to solution