Passi risolutivi (38)
Passo 1
Naked Singles
valore: 3
categoria doc: Getting_Started
Last candidate 5 in C7 changed to solution
Last candidate 3 in G7 changed to solution
Last candidate 2 in G9 changed to solution
Passo 2
Naked Singles
valore: 1
categoria doc: Getting_Started
Last candidate 3 in C3 changed to solution
Passo 3
Naked Singles
valore: 2.4
categoria doc: Getting_Started
Last candidate 8 in A3 changed to solution
Passo 4
Naked Singles
valore: 2.4
categoria doc: Getting_Started
Last candidate 5 in B3 changed to solution
Passo 5
Hidden Singles
valore: 4.8
categoria doc: Getting_Started
8 in J7 is last in box
Passo 6
Naked Pair
valore: 22.3
categoria doc: Naked_Candidates
Naked Pair 5/9 on cells {H8|J8} means
- 9 can be removed from A8
- 5/9 can be removed from D8
- 5/9 can be removed from E8
- 5/9 can be removed from F8
Passo 7
Hidden Pair
valore: 43.2
categoria doc: Hidden_Candidates
Hidden Pair 3/8 in Box 7, on cells {H1|H2}
- removes 4/7 from H1
- removes 4/7/9 from H2
Passo 8
Hidden Singles
valore: 4.3
categoria doc: Getting_Started
7 in G1 is last in column/box
9 in H8 is last in row
Passo 9
Naked Singles
valore: 2
categoria doc: Getting_Started
Last candidate 5 in J8 changed to solution
Passo 10
Pointing Pairs
valore: 60.2
categoria doc: Intersection_Removal
Pair: between Box 7 and Row J:
- 4 can be removed from J4
- 4 can be removed from J6
Passo 11
Hidden Unique Rectangle
valore: 398.9
categoria doc: Hidden_Unique_Rectangles
Type 1: removing 4 at E4 because of EH45 and two strong links on 7
Passo 12
Aligned Pair Exclusion
valore: 554.6
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 A4 / B8 reduced from 2/3/4/6->2/3/6 and 1/6/7->1/6/7
- Combinations of 4/6/7/9 found in ALS {A7,A8,A9}
- Combinations of 1/4/6/8 found in ALS {B4,B5,B6}
Passo 13
Aligned Pair Exclusion
valore: 550.8
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 A6 / B8 reduced from 2/3/4->2/3 and 1/6/7->1/6/7
- Combinations of 4/6/7/9 found in ALS {A7,A8,A9}
- Combinations of 1/4/6/8 found in ALS {B4,B5,B6}
Passo 14
Aligned Pair Exclusion
valore: 546.9
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 B5 / C5 reduced from 1/4/6/8->1/4/8 and 1/2/4->1/2/4
- Pair 1/6 found in ALS {G5}
- Combinations of 2/3/4/6 found in ALS {A4,A6,B4}
- Combinations of 2/4/7/8/9 found in ALS {D5,E5,F5,H5}
Passo 15
Hidden Singles
valore: 3.9
categoria doc: Getting_Started
6 in G5 is last in column
Passo 16
Naked Singles
valore: 1.8
categoria doc: Getting_Started
Last candidate 1 in G3 changed to solution
Last candidate 2 in J4 changed to solution
Passo 17
Naked Singles
valore: 1.7
categoria doc: Getting_Started
Last candidate 1 in J6 changed to solution
Passo 18
Naked Pair
valore: 16.8
categoria doc: Naked_Candidates
Naked Pair 6/9 on cells {E3|E7} means
- 6 can be removed from E1
- 9 can be removed from E2
- 9 can be removed from E5
- 6 can be removed from E8
- 9 can be removed from E9
Passo 19
XY-Chain
valore: 282.9
categoria doc: XY_Chains
length=6, chain ends: A9 and J2
This proves 4 is the solution at one or possibly both ends of the chain
-4[A9]+9[A9]-9[A7]+6[A7]-6[E7]+9[E7]-9[E3]+6[E3]-6[J3]+9[J3]-9[J2]+4[J2]
- 4 can be removed from A2
Passo 20
Hidden Singles
valore: 3.3
categoria doc: Getting_Started
4 in A9 is last in row
Passo 21
Naked Singles
valore: 1.6
categoria doc: Getting_Started
Last candidate 1 in C9 changed to solution
Passo 22
Hidden Singles
valore: 3
categoria doc: Getting_Started
1 in B5 is last in row/column/box
9 in A7 is last in row/box
Passo 23
Naked Singles
valore: 1.4
categoria doc: Getting_Started
Last candidate 6 in E7 changed to solution
Passo 24
Naked Singles
valore: 1.4
categoria doc: Getting_Started
Last candidate 9 in E3 changed to solution
Passo 25
Naked Singles
valore: 1.3
categoria doc: Getting_Started
Last candidate 6 in J3 changed to solution
Passo 26
Naked Singles
valore: 1.3
categoria doc: Getting_Started
Last candidate 4 in J1 changed to solution
Passo 27
Naked Singles
valore: 1.2
categoria doc: Getting_Started
Last candidate 2 in C1 changed to solution
Last candidate 9 in J2 changed to solution
Passo 28
Naked Singles
valore: 1.1
categoria doc: Getting_Started
Last candidate 7 in A2 changed to solution
Last candidate 4 in C5 changed to solution
Passo 29
Naked Singles
valore: 0.9
categoria doc: Getting_Started
Last candidate 6 in A8 changed to solution
Last candidate 4 in B2 changed to solution
Last candidate 6 in B4 changed to solution
Last candidate 8 in B6 changed to solution
Last candidate 7 in H5 changed to solution
Passo 30
Naked Singles
valore: 0.9
categoria doc: Getting_Started
Last candidate 3 in A4 changed to solution
Last candidate 7 in B8 changed to solution
Passo 31
Naked Singles
valore: 0.7
categoria doc: Getting_Started
Last candidate 2 in A6 changed to solution
Last candidate 5 in F4 changed to solution
Passo 32
Naked Singles
valore: 0.6
categoria doc: Getting_Started
Last candidate 3 in D6 changed to solution
Last candidate 7 in E4 changed to solution
Last candidate 4 in H4 changed to solution
Passo 33
Naked Singles
valore: 0.5
categoria doc: Getting_Started
Last candidate 2 in D8 changed to solution
Last candidate 4 in E6 changed to solution
Last candidate 5 in H6 changed to solution
Passo 34
Naked Singles
valore: 0.4
categoria doc: Getting_Started
Last candidate 8 in D2 changed to solution
Passo 35
Naked Singles
valore: 0.3
categoria doc: Getting_Started
Last candidate 9 in D5 changed to solution
Last candidate 3 in F1 changed to solution
Last candidate 3 in H2 changed to solution
Passo 36
Naked Singles
valore: 0.2
categoria doc: Getting_Started
Last candidate 5 in D9 changed to solution
Last candidate 5 in E1 changed to solution
Last candidate 1 in F8 changed to solution
Last candidate 8 in H1 changed to solution
Passo 37
Naked Singles
valore: 0.1
categoria doc: Getting_Started
Last candidate 6 in D1 changed to solution
Last candidate 3 in E8 changed to solution
Last candidate 8 in E9 changed to solution
Last candidate 2 in F2 changed to solution
Passo 38
Naked Singles
valore: 0
categoria doc: Getting_Started
Last candidate 1 in E2 changed to solution
Last candidate 2 in E5 changed to solution
Last candidate 8 in F5 changed to solution
Last candidate 9 in F9 changed to solution