Passi risolutivi (25)
Passo 1
Hidden Singles
valore: 5.3
categoria doc: Getting_Started
1 in G2 is last in row/box
3 in E2 is last in column/box
3 in H9 is last in row/column/box
8 in J1 is last in row
9 in C2 is last in column/box
Passo 2
Naked Singles
valore: 2.5
categoria doc: Getting_Started
Last candidate 4 in D2 changed to solution
Passo 3
Naked Singles
valore: 2.3
categoria doc: Getting_Started
Last candidate 6 in H2 changed to solution
Passo 4
Naked Singles
valore: 2.3
categoria doc: Getting_Started
Last candidate 8 in B2 changed to solution
Passo 5
Hidden Singles
valore: 4.5
categoria doc: Getting_Started
8 in A4 is last in row/box
Passo 6
Hidden Singles
valore: 4.3
categoria doc: Getting_Started
8 in D6 is last in row
Passo 7
Line/Box Reduction
valore: 83.1
categoria doc: Intersection_Removal
Pair: between Col 5 and Box 5:
- 2 can be removed from D4
- 2 can be removed from F4
- 2 can be removed from F6
Passo 8
Hidden Triple
valore: 99.7
categoria doc: Hidden_Candidates
Hidden Triple 2/3/9 in Box 5, on cells {D5|F5|F6}
- removes 1/7 from D5
- removes 1 from F5
- removes 4/5/6 from F6
Passo 9
Y-Wing
valore: 157.4
categoria doc: Y_Wing_Strategy
Y-Wing pattern. Hinge: H5 (7/9), wings H1 J6, therefore
- 4 can be removed from H4
- 4 can be removed from J3
Last candidate 7 in J3 changed to solution
Passo 10
Naked Singles
valore: 1.9
categoria doc: Getting_Started
Last candidate 4 in H1 changed to solution
Passo 11
Naked Singles
valore: 1.8
categoria doc: Getting_Started
Last candidate 6 in A1 changed to solution
Passo 12
Hidden Singles
valore: 3.3
categoria doc: Getting_Started
4 in B3 is last in column/box
6 in E3 is last in column/box
6 in F4 is last in row
Passo 13
Naked Pair
valore: 14.7
categoria doc: Naked_Candidates
Naked Pair 4/9 on cells {A9|J9} means
- 9 can be removed from D9
- 4/9 can be removed from F9
- 4 can be removed from G9
Passo 14
Hidden Singles
valore: 2.9
categoria doc: Getting_Started
9 in D5 is last in row
Passo 15
Naked Singles
valore: 1.4
categoria doc: Getting_Started
Last candidate 3 in F6 changed to solution
Last candidate 7 in H5 changed to solution
Passo 16
Naked Singles
valore: 1.3
categoria doc: Getting_Started
Last candidate 6 in B6 changed to solution
Last candidate 1 in E5 changed to solution
Last candidate 2 in F5 changed to solution
Last candidate 5 in H4 changed to solution
Passo 17
Naked Singles
valore: 1
categoria doc: Getting_Started
Last candidate 3 in B5 changed to solution
Last candidate 2 in C6 changed to solution
Last candidate 7 in D4 changed to solution
Passo 18
Naked Singles
valore: 0.9
categoria doc: Getting_Started
Last candidate 1 in C4 changed to solution
Last candidate 4 in E4 changed to solution
Last candidate 4 in G6 changed to solution
Passo 19
Naked Singles
valore: 0.8
categoria doc: Getting_Started
Last candidate 5 in C3 changed to solution
Last candidate 5 in E6 changed to solution
Last candidate 2 in G4 changed to solution
Last candidate 9 in J6 changed to solution
Passo 20
Naked Singles
valore: 0.6
categoria doc: Getting_Started
Last candidate 7 in C1 changed to solution
Last candidate 1 in D3 changed to solution
Last candidate 4 in J9 changed to solution
Passo 21
Naked Singles
valore: 0.5
categoria doc: Getting_Started
Last candidate 9 in A9 changed to solution
Last candidate 1 in B1 changed to solution
Last candidate 6 in C8 changed to solution
Last candidate 5 in D9 changed to solution
Last candidate 5 in F1 changed to solution
Passo 22
Naked Singles
valore: 0.3
categoria doc: Getting_Started
Last candidate 4 in A7 changed to solution
Last candidate 7 in B9 changed to solution
Last candidate 2 in D1 changed to solution
Last candidate 1 in F9 changed to solution
Passo 23
Naked Singles
valore: 0.2
categoria doc: Getting_Started
Last candidate 5 in B8 changed to solution
Last candidate 9 in F7 changed to solution
Last candidate 6 in G9 changed to solution
Passo 24
Naked Singles
valore: 0.2
categoria doc: Getting_Started
Last candidate 4 in F8 changed to solution
Last candidate 7 in G8 changed to solution
Last candidate 8 in H7 changed to solution
Passo 25
Naked Singles
valore: 0.1
categoria doc: Getting_Started
Last candidate 7 in E7 changed to solution
Last candidate 8 in E8 changed to solution
Last candidate 5 in G7 changed to solution
Last candidate 9 in H8 changed to solution