Passi risolutivi (30)
Passo 1
Hidden Singles
valore: 5.2
categoria doc: Getting_Started
4 in G3 is last in column/box
5 in E7 is last in column/box
5 in G2 is last in row/column/box
8 in B5 is last in row/box
8 in E3 is last in column/box
8 in H9 is last in row/column/box
Passo 2
Hidden Singles
valore: 4.8
categoria doc: Getting_Started
8 in D4 is last in row/column/box
Passo 3
Hidden Singles
valore: 4.6
categoria doc: Getting_Started
5 in A4 is last in column
5 in D6 is last in row/box
Passo 4
Hidden Singles
valore: 4.2
categoria doc: Getting_Started
3 in C5 is last in box
5 in B1 is last in row/column/box
Passo 5
Naked Singles
valore: 2
categoria doc: Getting_Started
Last candidate 6 in D5 changed to solution
Passo 6
Hidden Singles
valore: 3.6
categoria doc: Getting_Started
3 in A7 is last in column
Passo 7
Hidden Singles
valore: 3.4
categoria doc: Getting_Started
3 in B3 is last in row/box
4 in A6 is last in row
4 in C7 is last in column/box
Passo 8
Hidden Singles
valore: 3
categoria doc: Getting_Started
1 in B9 is last in row
2 in C8 is last in row/box
3 in J1 is last in row/box
Passo 9
Naked Singles
valore: 1.4
categoria doc: Getting_Started
Last candidate 9 in D1 changed to solution
Passo 10
Naked Singles
valore: 1.3
categoria doc: Getting_Started
Last candidate 3 in D2 changed to solution
Passo 11
Naked Pair
valore: 12.4
categoria doc: Naked_Candidates
Naked Pair 6/7 on cells {B6|C6} means
- 7 can be removed from E6
- 6/7 can be removed from J6
Passo 12
Naked Pair
valore: 11.8
categoria doc: Naked_Candidates
Naked Pair 1/6 on cells {E1|E2} means
- 1 can be removed from E5
- 1 can be removed from E6
- 6 can be removed from E8
- 6 can be removed from E9
Passo 13
Naked Pair
valore: 11.4
categoria doc: Naked_Candidates
Naked Pair 2/9 on cells {E6|E9} means
- 9 can be removed from E4
- 2 can be removed from E5
- 9 can be removed from E8
Last candidate 3 in E8 changed to solution
Passo 14
Hidden Singles
valore: 2.2
categoria doc: Getting_Started
3 in F4 is last in row/column/box
Passo 15
Hidden Pair
valore: 20.6
categoria doc: Hidden_Candidates
Hidden Pair 7/9 in Box 9, on cells {G8|J9}
- removes 6 from G8
- removes 2/6 from J9
Passo 16
Pointing Pairs
valore: 30.5
categoria doc: Intersection_Removal
Pair: between Box 5 and Col 6:
- 9 can be removed from J6
Passo 17
Chute Remote Pair
valore: 49.5
categoria doc: Chute_Remote_Pair
1 cannot be set in the yellow cells {G1,G2,G3} and with the Remote Pair in H7 and J6 it means:
- 2 can be removed from H5
- 2 can be removed from J7
Passo 18
Hidden Singles
valore: 1.9
categoria doc: Getting_Started
2 in F5 is last in column
2 in H7 is last in row/column/box
2 in J6 is last in row/box
Passo 19
Naked Singles
valore: 0.9
categoria doc: Getting_Started
Last candidate 9 in E6 changed to solution
Passo 20
Naked Singles
valore: 0.8
categoria doc: Getting_Started
Last candidate 2 in E9 changed to solution
Last candidate 1 in F6 changed to solution
Passo 21
Rectangle Elimination
valore: 39.2
categoria doc: Rectangle_Elimination
If +7[A1] then -7[A9] forcing +7[J9] which removes all 7s from box 7, so A1 cannot be 7
Passo 22
Hidden Singles
valore: 1.5
categoria doc: Getting_Started
7 in H1 is last in column
Passo 23
Y-Wing
valore: 56.1
categoria doc: Y_Wing_Strategy
Y-Wing pattern. Hinge: J3 (1/9), wings A3 J9, therefore
- 7 can be removed from A9
Last candidate 6 in A9 changed to solution
Passo 24
Naked Singles
valore: 0.6
categoria doc: Getting_Started
Last candidate 1 in A1 changed to solution
Last candidate 7 in B8 changed to solution
Last candidate 9 in F9 changed to solution
Passo 25
Naked Singles
valore: 0.5
categoria doc: Getting_Started
Last candidate 7 in A3 changed to solution
Last candidate 6 in B6 changed to solution
Last candidate 6 in E1 changed to solution
Last candidate 6 in F8 changed to solution
Last candidate 9 in G8 changed to solution
Last candidate 7 in J9 changed to solution
Passo 26
Naked Singles
valore: 0.4
categoria doc: Getting_Started
Last candidate 9 in C3 changed to solution
Last candidate 7 in C6 changed to solution
Last candidate 1 in E2 changed to solution
Passo 27
Naked Singles
valore: 0.3
categoria doc: Getting_Started
Last candidate 6 in C2 changed to solution
Last candidate 9 in H2 changed to solution
Last candidate 1 in J3 changed to solution
Passo 28
Naked Singles
valore: 0.2
categoria doc: Getting_Started
Last candidate 4 in H4 changed to solution
Last candidate 6 in J7 changed to solution
Passo 29
Naked Singles
valore: 0.1
categoria doc: Getting_Started
Last candidate 7 in E4 changed to solution
Last candidate 1 in G7 changed to solution
Last candidate 1 in H5 changed to solution
Last candidate 9 in J4 changed to solution
Passo 30
Naked Singles
valore: 0
categoria doc: Getting_Started
Last candidate 4 in E5 changed to solution
Last candidate 6 in G4 changed to solution
Last candidate 7 in G5 changed to solution