Passi risolutivi (15)
Passo 1
Naked Singles
valore: 3
categoria doc: Getting_Started
Last candidate 7 in F4 changed to solution
Last candidate 1 in H4 changed to solution
Last candidate 8 in D6 changed to solution
Last candidate 9 in G4 changed to solution
Last candidate 4 in J4 changed to solution
Passo 2
Naked Singles
valore: 2.2
categoria doc: Getting_Started
Last candidate 6 in B4 changed to solution
Last candidate 2 in C4 changed to solution
Passo 3
Hidden Singles
valore: 3.9
categoria doc: Getting_Started
1 in A8 is last in box
1 in B6 is last in row
1 in G3 is last in row
1 in J9 is last in column
9 in A2 is last in column/box
9 in C5 is last in row
Passo 4
Hidden Singles
valore: 3.5
categoria doc: Getting_Started
9 in D9 is last in column
9 in J7 is last in row/box
Passo 5
Hidden Singles
valore: 3.3
categoria doc: Getting_Started
2 in G7 is last in column/box
Passo 6
Hidden Singles
valore: 3.2
categoria doc: Getting_Started
2 in J2 is last in column
Passo 7
Pointing Pairs
valore: 45
categoria doc: Intersection_Removal
Pair: between Box 7 and Col 3:
- 3 can be removed from A3
- 3 can be removed from B3
- 3 can be removed from C3
- 3 can be removed from D3
- 3 can be removed from F3
Passo 8
Pointing Pairs
valore: 44.6
categoria doc: Intersection_Removal
Pair: between Box 9 and Row H:
- 6 can be removed from H3
Passo 9
Naked Triple
valore: 57.2
categoria doc: Naked_Candidates
Naked Triple 4/6/7 on cells {B3|C3|D3} means
- 4/6/7 can be removed from A3
- 6 can be removed from F3
Last candidate 2 in A3 changed to solution
Passo 10
Hidden Singles
valore: 2.7
categoria doc: Getting_Started
2 in F1 is last in row/column/box
Passo 11
Pointing Pairs
valore: 39.6
categoria doc: Intersection_Removal
Pair: between Box 4 and Row D:
- 3 can be removed from D7
Passo 12
Pointing Pairs
valore: 39.2
categoria doc: Intersection_Removal
Triple: between Box 4 and Row D:
- 6 can be removed from D7
Passo 13
Y-Wing
valore: 100.1
categoria doc: Y_Wing_Strategy
Y-Wing pattern. Hinge: E1 (4/5), wings E9 F3, therefore
- 8 can be removed from E2
- 8 can be removed from F7
- 8 can be removed from F8
- 8 can be removed from F9
Last candidate 7 in E2 changed to solution
Last candidate 6 in F9 changed to solution
Passo 14
Naked Singles
valore: 0.4
categoria doc: Getting_Started
Last candidate 3 in B2 changed to solution
Last candidate 6 in D2 changed to solution
Last candidate 4 in D3 changed to solution
Last candidate 7 in D7 changed to solution
Last candidate 5 in E1 changed to solution
Last candidate 8 in E8 changed to solution
Last candidate 4 in E9 changed to solution
Last candidate 8 in F3 changed to solution
Last candidate 6 in G1 changed to solution
Last candidate 8 in G2 changed to solution
Last candidate 7 in G5 changed to solution
Last candidate 5 in G6 changed to solution
Last candidate 3 in H6 changed to solution
Last candidate 8 in J5 changed to solution
Last candidate 5 in J8 changed to solution
Last candidate 4 in A1 changed to solution
Last candidate 3 in A5 changed to solution
Last candidate 7 in A6 changed to solution
Last candidate 6 in A7 changed to solution
Last candidate 7 in B3 changed to solution
Last candidate 4 in B7 changed to solution
Last candidate 6 in C3 changed to solution
Last candidate 4 in C6 changed to solution
Last candidate 8 in C9 changed to solution
Last candidate 3 in D1 changed to solution
Last candidate 3 in F8 changed to solution
Last candidate 5 in H3 changed to solution
Last candidate 8 in H7 changed to solution
Last candidate 6 in H8 changed to solution
Last candidate 3 in J3 changed to solution
Passo 15
Naked Singles
valore: 0
categoria doc: Getting_Started
Last candidate 3 in C7 changed to solution
Last candidate 7 in C8 changed to solution
Last candidate 5 in F7 changed to solution