Passi risolutivi (23)
Passo 1
Naked Singles
valore: 1
categoria doc: Getting_Started
Last candidate 2 in G5 changed to solution
Passo 2
Naked Singles
valore: 2
categoria doc: Getting_Started
Last candidate 4 in C5 changed to solution
Last candidate 1 in G6 changed to solution
Passo 3
Hidden Singles
valore: 5.1
categoria doc: Getting_Started
4 in F6 is last in row/column/box
8 in D7 is last in column/box
9 in E5 is last in column/box
Passo 4
Hidden Singles
valore: 4.8
categoria doc: Getting_Started
5 in B5 is last in column
Passo 5
Pointing Pairs
valore: 70.6
categoria doc: Intersection_Removal
Triple: between Box 6 and Col 9:
- 5 can be removed from J9
Passo 6
Pointing Pairs
valore: 69.7
categoria doc: Intersection_Removal
Triple: between Box 5 and Col 4:
- 6 can be removed from H4
- 6 can be removed from J4
Passo 7
Pointing Pairs
valore: 69.3
categoria doc: Intersection_Removal
Triple: between Box 6 and Col 8:
- 7 can be removed from B8
Passo 8
Y-Wing
valore: 183.8
categoria doc: Y_Wing_Strategy
Y-Wing pattern. Hinge: A3 (2/8), wings A5 H3, therefore
- 7 can be removed from H5
Passo 9
XY-Chain
valore: 342.5
categoria doc: XY_Chains
length=5, chain ends: A7 and J4
This proves 3 is the solution at one or possibly both ends of the chain
-3[A7]+7[A7]-7[A5]+8[A5]-8[H5]+6[H5]-6[J5]+7[J5]-7[J4]+3[J4]
- 3 can be removed from J7
Passo 10
3D Medusa
valore: 360.9
categoria doc: 3D_Medusa
(RULE 5): Uncoloured candidate 6 in J7 can see coloured 6 elsewhere and an oppositely coloured 5 in its own cell. It can be removed.
(RULE 5): Uncoloured candidate 7 in J3 can see coloured 7 elsewhere and an oppositely coloured 5 in its own cell. It can be removed.
Passo 11
Line/Unit Reduction
valore: 88.6
categoria doc: Intersection_Removal
Line/Box Reduction: 6s in box 3 remove the following in the same box:
- 6 can be removed from B8
- 6 can be removed from B9
- 6 can be removed from C8
Passo 12
XY-Chain
valore: 326
categoria doc: XY_Chains
length=5, chain ends: G7 and J3
This proves 5 is the solution at one or possibly both ends of the chain
-5[G7]+3[G7]-3[A7]+7[A7]-7[A5]+8[A5]-8[A3]+2[A3]-2[J3]+5[J3]
- 5 can be removed from G2
- 5 can be removed from G3
- 5 can be removed from J7
Last candidate 9 in G3 changed to solution
Last candidate 1 in J7 changed to solution
Passo 13
Naked Singles
valore: 1.9
categoria doc: Getting_Started
Last candidate 6 in C7 changed to solution
Last candidate 3 in G2 changed to solution
Passo 14
Naked Singles
valore: 1.7
categoria doc: Getting_Started
Last candidate 7 in B7 changed to solution
Last candidate 2 in C3 changed to solution
Last candidate 5 in G7 changed to solution
Passo 15
Naked Singles
valore: 1.5
categoria doc: Getting_Started
Last candidate 8 in A3 changed to solution
Last candidate 3 in A7 changed to solution
Last candidate 1 in C4 changed to solution
Last candidate 7 in H3 changed to solution
Last candidate 5 in J3 changed to solution
Passo 16
Naked Singles
valore: 1.1
categoria doc: Getting_Started
Last candidate 4 in A1 changed to solution
Last candidate 7 in A5 changed to solution
Last candidate 9 in C8 changed to solution
Last candidate 6 in F3 changed to solution
Last candidate 2 in J1 changed to solution
Passo 17
Naked Singles
valore: 0.9
categoria doc: Getting_Started
Last candidate 2 in A9 changed to solution
Last candidate 9 in B1 changed to solution
Last candidate 1 in H1 changed to solution
Last candidate 4 in H2 changed to solution
Last candidate 6 in J5 changed to solution
Passo 18
Naked Singles
valore: 0.7
categoria doc: Getting_Started
Last candidate 6 in B2 changed to solution
Last candidate 1 in B8 changed to solution
Last candidate 7 in D1 changed to solution
Last candidate 8 in H5 changed to solution
Last candidate 3 in J9 changed to solution
Passo 19
Naked Singles
valore: 0.4
categoria doc: Getting_Started
Last candidate 4 in B9 changed to solution
Last candidate 2 in D6 changed to solution
Last candidate 6 in D8 changed to solution
Last candidate 3 in H4 changed to solution
Last candidate 6 in H9 changed to solution
Last candidate 7 in J4 changed to solution
Passo 20
Naked Singles
valore: 0.3
categoria doc: Getting_Started
Last candidate 8 in B6 changed to solution
Last candidate 5 in D4 changed to solution
Last candidate 5 in E9 changed to solution
Last candidate 2 in H8 changed to solution
Passo 21
Naked Singles
valore: 0.1
categoria doc: Getting_Started
Last candidate 2 in B4 changed to solution
Last candidate 9 in D2 changed to solution
Last candidate 2 in E2 changed to solution
Last candidate 7 in E6 changed to solution
Last candidate 8 in F4 changed to solution
Last candidate 9 in F9 changed to solution
Passo 22
Naked Singles
valore: 0
categoria doc: Getting_Started
Last candidate 1 in D9 changed to solution
Last candidate 6 in E4 changed to solution
Last candidate 3 in E8 changed to solution
Last candidate 3 in F1 changed to solution
Last candidate 5 in F2 changed to solution
Passo 23
Naked Singles
valore: 0
categoria doc: Getting_Started
Last candidate 8 in E1 changed to solution
Last candidate 7 in F8 changed to solution