Passi risolutivi (32)
Passo 1
Naked Singles
valore: 1
categoria doc: Getting_Started
Last candidate 5 in H5 changed to solution
Passo 2
Naked Singles
valore: 1
categoria doc: Getting_Started
Last candidate 1 in G5 changed to solution
Passo 3
Naked Singles
valore: 2.8
categoria doc: Getting_Started
Last candidate 8 in B5 changed to solution
Passo 4
Naked Singles
valore: 2.5
categoria doc: Getting_Started
Last candidate 3 in B9 changed to solution
Last candidate 2 in C5 changed to solution
Passo 5
Naked Singles
valore: 2.4
categoria doc: Getting_Started
Last candidate 7 in E5 changed to solution
Passo 6
Hidden Singles
valore: 4.7
categoria doc: Getting_Started
7 in J6 is last in row/column/box
8 in E4 is last in row/column/box
Passo 7
Hidden Singles
valore: 4.6
categoria doc: Getting_Started
2 in J4 is last in row/box
Passo 8
Naked Pair
valore: 21.3
categoria doc: Naked_Candidates
Naked Pair 3/9 on cells {D2|F2} means
- 3 can be removed from A2
- 3 can be removed from E1
- 3/9 can be removed from E3
- 3 can be removed from F1
- 3/9 can be removed from F3
- 9 can be removed from J2
Last candidate 4 in E3 changed to solution
Passo 9
Naked Singles
valore: 2
categoria doc: Getting_Started
Last candidate 2 in E1 changed to solution
Passo 10
Hidden Singles
valore: 3.9
categoria doc: Getting_Started
2 in F6 is last in row
Passo 11
Hidden Singles
valore: 3.7
categoria doc: Getting_Started
5 in F4 is last in row
Passo 12
Naked Singles
valore: 1.7
categoria doc: Getting_Started
Last candidate 3 in E6 changed to solution
Passo 13
Naked Singles
valore: 1.7
categoria doc: Getting_Started
Last candidate 1 in D6 changed to solution
Passo 14
Naked Singles
valore: 1.5
categoria doc: Getting_Started
Last candidate 4 in B6 changed to solution
Last candidate 9 in D4 changed to solution
Passo 15
Naked Singles
valore: 1.4
categoria doc: Getting_Started
Last candidate 1 in B7 changed to solution
Last candidate 6 in C6 changed to solution
Last candidate 3 in D2 changed to solution
Passo 16
Naked Singles
valore: 1.2
categoria doc: Getting_Started
Last candidate 5 in A6 changed to solution
Last candidate 3 in C4 changed to solution
Last candidate 7 in D8 changed to solution
Last candidate 9 in F2 changed to solution
Passo 17
Naked Singles
valore: 1.2
categoria doc: Getting_Started
Last candidate 1 in A4 changed to solution
Last candidate 3 in F8 changed to solution
Passo 18
Hidden Singles
valore: 2.3
categoria doc: Getting_Started
3 in G7 is last in column/box
Passo 19
Naked Pair
valore: 10.3
categoria doc: Naked_Candidates
Naked Pair 4/8 on cells {A2|A8} means
- 4 can be removed from A1
- 8 can be removed from A3
- 4 can be removed from A7
- 8 can be removed from A9
Last candidate 2 in A7 changed to solution
Passo 20
Naked Singles
valore: 0.9
categoria doc: Getting_Started
Last candidate 7 in A9 changed to solution
Last candidate 6 in D7 changed to solution
Passo 21
Naked Singles
valore: 0.9
categoria doc: Getting_Started
Last candidate 2 in D9 changed to solution
Passo 22
Line/Unit Reduction
valore: 34.1
categoria doc: Intersection_Removal
Line/Box Reduction: 9s in box 9 remove the following in the same box:
- 9 can be removed from J7
- 9 can be removed from J9
Passo 23
X-Wing
valore: 49.5
categoria doc: X_Wing_Strategy
(Col->Row) 8 taken off J3, based on CG39
(Col->Row) 8 taken off J9, based on CG39
Passo 24
Y-Wing
valore: 64.9
categoria doc: Y_Wing_Strategy
Y-Wing pattern. Hinge: G3 (6/8), wings G4 J2, therefore
- 4 can be removed from G1
Passo 25
Hidden Singles
valore: 1.6
categoria doc: Getting_Started
4 in G4 is last in row
Passo 26
Naked Singles
valore: 0.7
categoria doc: Getting_Started
Last candidate 6 in H4 changed to solution
Passo 27
Rectangle Elimination
valore: 35.1
categoria doc: Rectangle_Elimination
If either +4[A8] or +4[J2] are ON then both are on because they are strongly linked through the hinge cell A2. If both are ON then this removes all 4s from Box 9, so neither can be 4
Last candidate 8 in A8 changed to solution
Last candidate 8 in J2 changed to solution
Passo 28
Naked Singles
valore: 0.5
categoria doc: Getting_Started
Last candidate 4 in A2 changed to solution
Last candidate 9 in C9 changed to solution
Last candidate 6 in G3 changed to solution
Passo 29
Naked Singles
valore: 0.3
categoria doc: Getting_Started
Last candidate 3 in A3 changed to solution
Last candidate 7 in C1 changed to solution
Last candidate 4 in C7 changed to solution
Last candidate 5 in E9 changed to solution
Last candidate 5 in G1 changed to solution
Passo 30
Naked Singles
valore: 0.1
categoria doc: Getting_Started
Last candidate 6 in A1 changed to solution
Last candidate 8 in C3 changed to solution
Last candidate 9 in E7 changed to solution
Last candidate 1 in F1 changed to solution
Last candidate 8 in G9 changed to solution
Last candidate 9 in H3 changed to solution
Last candidate 5 in J7 changed to solution
Last candidate 6 in J9 changed to solution
Passo 31
Naked Singles
valore: 0
categoria doc: Getting_Started
Last candidate 7 in F3 changed to solution
Last candidate 4 in H8 changed to solution
Last candidate 4 in J1 changed to solution
Last candidate 1 in J3 changed to solution
Passo 32
Naked Singles
valore: 0
categoria doc: Getting_Started
Last candidate 3 in H1 changed to solution
Last candidate 9 in J8 changed to solution