Passi risolutivi (31)
Passo 1
Hidden Singles
valore: 5.6
categoria doc: Getting_Started
4 in J3 is last in column/box
Passo 2
Hidden Singles
valore: 5.3
categoria doc: Getting_Started
3 in C3 is last in column
4 in H8 is last in column
Passo 3
Hidden Singles
valore: 5
categoria doc: Getting_Started
4 in G5 is last in row/box
Passo 4
Hidden Pair
valore: 48.1
categoria doc: Hidden_Candidates
Hidden Pair 2/5 in Row H, on cells {H1|H2}
- removes 3/6/8 from H1
- removes 6/8 from H2
Passo 5
Hidden Singles
valore: 4.7
categoria doc: Getting_Started
8 in H9 is last in row
Passo 6
Hidden Singles
valore: 4.5
categoria doc: Getting_Started
8 in A7 is last in column/box
Passo 7
Hidden Singles
valore: 4.2
categoria doc: Getting_Started
2 in A9 is last in row/box
5 in J7 is last in column
8 in F3 is last in column
Passo 8
Naked Singles
valore: 2
categoria doc: Getting_Started
Last candidate 6 in J2 changed to solution
Passo 9
Naked Singles
valore: 1.8
categoria doc: Getting_Started
Last candidate 3 in J1 changed to solution
Passo 10
Hidden Singles
valore: 3.5
categoria doc: Getting_Started
9 in B9 is last in column/box
Passo 11
Hidden Singles
valore: 3.3
categoria doc: Getting_Started
3 in B8 is last in row/box
Passo 12
Naked Singles
valore: 1.6
categoria doc: Getting_Started
Last candidate 7 in E8 changed to solution
Passo 13
Naked Singles
valore: 1.5
categoria doc: Getting_Started
Last candidate 1 in J8 changed to solution
Passo 14
Naked Singles
valore: 1.5
categoria doc: Getting_Started
Last candidate 7 in J9 changed to solution
Passo 15
Hidden Singles
valore: 2.8
categoria doc: Getting_Started
1 in B1 is last in row
1 in C9 is last in column/box
Passo 16
Pointing Pairs
valore: 40.4
categoria doc: Intersection_Removal
Pair: between Box 6 and Row F:
- 3 can be removed from F4
- 3 can be removed from F6
Passo 17
Naked Pair
valore: 13.1
categoria doc: Naked_Candidates
Naked Pair 6/7 on cells {B6|F6} means
- 6/7 can be removed from D6
- 6 can be removed from H6
Passo 18
Pointing Pairs
valore: 38.8
categoria doc: Intersection_Removal
Pair: between Box 2 and Row B:
- 7 can be removed from B2
Passo 19
Hidden Singles
valore: 2.5
categoria doc: Getting_Started
7 in A2 is last in column
Passo 20
Line/Unit Reduction
valore: 49
categoria doc: Intersection_Removal
Line/Box Reduction: 6s in box 2 remove the following in the same box:
- 6 can be removed from C5
Passo 21
XY-Chain
valore: 157.4
categoria doc: XY_Chains
length=4, chain ends: B2 and E4
This proves 8 is the solution at one or possibly both ends of the chain
-8[B2]+5[B2]-5[H2]+2[H2]-2[E2]+2[E5]-8[E5]+8[E4]
- 8 can be removed from B4
Passo 22
Hidden Singles
valore: 2.4
categoria doc: Getting_Started
8 in E4 is last in column
Passo 23
Naked Singles
valore: 1.2
categoria doc: Getting_Started
Last candidate 2 in E5 changed to solution
Passo 24
Naked Singles
valore: 1.1
categoria doc: Getting_Started
Last candidate 9 in E2 changed to solution
Passo 25
Naked Singles
valore: 1
categoria doc: Getting_Started
Last candidate 5 in D3 changed to solution
Last candidate 3 in E6 changed to solution
Last candidate 8 in G2 changed to solution
Passo 26
Naked Singles
valore: 0.9
categoria doc: Getting_Started
Last candidate 9 in A3 changed to solution
Last candidate 5 in B2 changed to solution
Last candidate 9 in G1 changed to solution
Last candidate 1 in H6 changed to solution
Passo 27
Naked Singles
valore: 0.7
categoria doc: Getting_Started
Last candidate 6 in A1 changed to solution
Last candidate 6 in B4 changed to solution
Last candidate 9 in D6 changed to solution
Last candidate 2 in H2 changed to solution
Last candidate 6 in H5 changed to solution
Passo 28
Naked Singles
valore: 0.5
categoria doc: Getting_Started
Last candidate 5 in A8 changed to solution
Last candidate 7 in B6 changed to solution
Last candidate 8 in C1 changed to solution
Last candidate 4 in D4 changed to solution
Last candidate 5 in H1 changed to solution
Last candidate 3 in H4 changed to solution
Passo 29
Naked Singles
valore: 0.4
categoria doc: Getting_Started
Last candidate 8 in B5 changed to solution
Last candidate 5 in C5 changed to solution
Last candidate 6 in C8 changed to solution
Last candidate 6 in D9 changed to solution
Last candidate 5 in F4 changed to solution
Last candidate 6 in F6 changed to solution
Passo 30
Naked Singles
valore: 0.2
categoria doc: Getting_Started
Last candidate 2 in D7 changed to solution
Last candidate 7 in F5 changed to solution
Last candidate 3 in G9 changed to solution
Passo 31
Naked Singles
valore: 0.1
categoria doc: Getting_Started
Last candidate 7 in D1 changed to solution
Last candidate 1 in D5 changed to solution
Last candidate 2 in F1 changed to solution
Last candidate 3 in F7 changed to solution
Last candidate 4 in F9 changed to solution
Last candidate 6 in G7 changed to solution