Passi risolutivi (44)
Passo 1
Naked Singles
valore: 1
categoria doc: Getting_Started
Last candidate 8 in D2 changed to solution
Passo 2
Hidden Singles
valore: 5.2
categoria doc: Getting_Started
3 in C8 is last in column
4 in C5 is last in column/box
7 in A4 is last in box
9 in A8 is last in row
9 in B3 is last in box
Passo 3
Hidden Singles
valore: 4.6
categoria doc: Getting_Started
8 in C1 is last in row
Passo 4
Naked Pair
valore: 22
categoria doc: Naked_Candidates
Naked Pair 1/6 on cells {E2|F2} means
- 1 can be removed from C2
- 1/6 can be removed from E3
- 1/6 can be removed from G2
- 6 can be removed from H2
- 1 can be removed from J2
Passo 5
Naked Pair
valore: 21.7
categoria doc: Naked_Candidates
Naked Pair 3/7 on cells {D3|E3} means
- 7 can be removed from G3
- 3 can be removed from H3
Passo 6
Pointing Pairs
valore: 64.4
categoria doc: Intersection_Removal
Pair: between Box 1 and Row C:
- 5 can be removed from C7
- 5 can be removed from C9
Passo 7
Pointing Pairs
valore: 63.5
categoria doc: Intersection_Removal
Pair: between Box 1 and Col 1:
- 6 can be removed from G1
- 6 can be removed from H1
Passo 8
Pointing Pairs
valore: 63.1
categoria doc: Intersection_Removal
Pair: between Box 6 and Col 8:
- 8 can be removed from G8
Passo 9
Chute Remote Pair
valore: 103.2
categoria doc: Chute_Remote_Pairs
7 cannot be set in the yellow cells {F1,F2,F3} and with the Remote Pair in D6 and E7 it means:
- 2 can be removed from D8
- 2 can be removed from E4
- 2 can be removed from E5
Passo 10
Rectangle Elimination
valore: 102.5
categoria doc: Rectangle_Elimination
If +1[J1] then -1[A1] forcing +1[A5] which removes all 1s from Box 8, so J1 cannot be 1
Passo 11
Pointing Pairs
valore: 61.1
categoria doc: Intersection_Removal
Pair: between Box 7 and Row G:
- 1 can be removed from G5
Passo 12
XYZ Wing
valore: 242.6
categoria doc: XYZ_Wing
XYZ-Wing pattern. Hinge: E5 (1/6/8), wings E2 F4, therefore
- 1 can be removed from E4
Passo 13
Hidden Pair
valore: 40.2
categoria doc: Hidden_Candidates
Hidden Pair 1/6 in Row E, on cells {E2|E5}
- removes 8 from E5
Passo 14
Unique Rectangle Type 1
valore: 79.2
categoria doc: Unique_Rectangle
Uniqueness Type 1 removing 1/6 at F5 because of E5,E2,F2
Passo 15
Hidden Unique Rectangle
valore: 393.4
categoria doc: Hidden_Unique_Rectangles
Type 1: removing 2 at B1 because of AB19 and two strong links on 6
Passo 16
Hidden Unique Rectangle
valore: 390.6
categoria doc: Hidden_Unique_Rectangles
Type 1: removing 2 at J7 because of HJ17 and two strong links on 3
Passo 17
Aligned Pair Exclusion
valore: 543.1
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 D5 / E5 reduced from 2/5/9->2/5/9 and 1/6->6
- Combinations of 1/2/9 found in ALS {A5,J5}
- Combinations of 1/5/8 found in ALS {F4,F5}
Last candidate 6 in E5 changed to solution
Passo 18
Naked Singles
valore: 1.9
categoria doc: Getting_Started
Last candidate 1 in E2 changed to solution
Passo 19
Naked Singles
valore: 1.8
categoria doc: Getting_Started
Last candidate 6 in F2 changed to solution
Passo 20
Hidden Singles
valore: 3.6
categoria doc: Getting_Started
6 in G3 is last in row
6 in H6 is last in column/box
Passo 21
Naked Singles
valore: 1.7
categoria doc: Getting_Started
Last candidate 5 in H3 changed to solution
Passo 22
Naked Singles
valore: 1.6
categoria doc: Getting_Started
Last candidate 1 in C3 changed to solution
Passo 23
Naked Singles
valore: 1.6
categoria doc: Getting_Started
Last candidate 6 in B1 changed to solution
Passo 24
Naked Singles
valore: 1.5
categoria doc: Getting_Started
Last candidate 2 in A1 changed to solution
Passo 25
Naked Singles
valore: 1.3
categoria doc: Getting_Started
Last candidate 1 in A5 changed to solution
Last candidate 6 in A9 changed to solution
Last candidate 5 in C2 changed to solution
Last candidate 3 in H1 changed to solution
Passo 26
Naked Singles
valore: 1.3
categoria doc: Getting_Started
Last candidate 7 in J1 changed to solution
Passo 27
Naked Singles
valore: 1.3
categoria doc: Getting_Started
Last candidate 1 in G1 changed to solution
Passo 28
Hidden Singles
valore: 2.4
categoria doc: Getting_Started
1 in B7 is last in row/column/box
1 in F4 is last in column
1 in J6 is last in row/box
3 in J7 is last in row/column/box
Passo 29
Naked Pair
valore: 10.9
categoria doc: Naked_Candidates
Naked Pair 2/8 on cells {B4|B6} means
- 2 can be removed from B8
- 2 can be removed from B9
Passo 30
Naked Pair
valore: 10.3
categoria doc: Naked_Candidates
Naked Pair 2/7 on cells {C7|E7} means
- 7 can be removed from F7
- 2/7 can be removed from G7
- 2 can be removed from H7
Passo 31
Y-Wing
valore: 81.4
categoria doc: Y_Wing_Strategy
Y-Wing pattern. Hinge: J9 (2/4), wings H7 J5, therefore
- 9 can be removed from H4
Passo 32
Hidden Singles
valore: 2
categoria doc: Getting_Started
9 in D4 is last in column
Passo 33
Hidden Singles
valore: 1.9
categoria doc: Getting_Started
3 in D3 is last in row
3 in E4 is last in column/box
Passo 34
Naked Singles
valore: 0.9
categoria doc: Getting_Started
Last candidate 7 in E3 changed to solution
Passo 35
Naked Singles
valore: 0.8
categoria doc: Getting_Started
Last candidate 2 in E7 changed to solution
Passo 36
Naked Singles
valore: 0.8
categoria doc: Getting_Started
Last candidate 7 in C7 changed to solution
Last candidate 8 in E8 changed to solution
Passo 37
Naked Singles
valore: 0.7
categoria doc: Getting_Started
Last candidate 2 in C9 changed to solution
Passo 38
Naked Singles
valore: 0.6
categoria doc: Getting_Started
Last candidate 4 in J9 changed to solution
Passo 39
Naked Singles
valore: 0.5
categoria doc: Getting_Started
Last candidate 5 in B9 changed to solution
Last candidate 9 in H7 changed to solution
Last candidate 8 in H9 changed to solution
Passo 40
Naked Singles
valore: 0.3
categoria doc: Getting_Started
Last candidate 4 in B8 changed to solution
Last candidate 5 in G7 changed to solution
Last candidate 7 in G9 changed to solution
Last candidate 2 in H4 changed to solution
Passo 41
Naked Singles
valore: 0.2
categoria doc: Getting_Started
Last candidate 8 in B4 changed to solution
Last candidate 4 in F7 changed to solution
Last candidate 2 in G8 changed to solution
Last candidate 4 in H2 changed to solution
Last candidate 9 in J5 changed to solution
Passo 42
Naked Singles
valore: 0.1
categoria doc: Getting_Started
Last candidate 2 in B6 changed to solution
Last candidate 9 in G2 changed to solution
Last candidate 8 in G5 changed to solution
Last candidate 2 in J2 changed to solution
Passo 43
Naked Singles
valore: 0.1
categoria doc: Getting_Started
Last candidate 7 in D6 changed to solution
Last candidate 5 in F5 changed to solution
Passo 44
Naked Singles
valore: 0
categoria doc: Getting_Started
Last candidate 2 in D5 changed to solution
Last candidate 5 in D8 changed to solution
Last candidate 8 in F6 changed to solution
Last candidate 7 in F8 changed to solution