Passi risolutivi (29)
Passo 1
Hidden Singles
valore: 5.2
categoria doc: Getting_Started
4 in B9 is last in row/box
4 in E7 is last in column
4 in J5 is last in row/box
5 in G8 is last in column/box
Passo 2
Hidden Pair
valore: 48.1
categoria doc: Hidden_Candidates
Hidden Pair 1/3 in Col 4, on cells {G4|H4}
- removes 2 from G4
- removes 2/5 from H4
Passo 3
Hidden Pair
valore: 47.6
categoria doc: Hidden_Candidates
Hidden Pair 2/7 in Box 6, on cells {F8|F9}
- removes 8 from F8
- removes 8 from F9
Passo 4
Pointing Pairs
valore: 71
categoria doc: Intersection_Removal
Triple: between Box 9 and Col 9:
- 1 can be removed from A9
Passo 5
Pointing Pairs
valore: 70.2
categoria doc: Intersection_Removal
Pair: between Box 8 and Col 6:
- 2 can be removed from B6
- 2 can be removed from C6
Passo 6
Pointing Pairs
valore: 69.3
categoria doc: Intersection_Removal
Pair: between Box 8 and Row H:
- 5 can be removed from H1
- 5 can be removed from H2
Passo 7
Pointing Pairs
valore: 68.9
categoria doc: Intersection_Removal
Pair: between Box 9 and Col 9:
- 9 can be removed from D9
Passo 8
Rectangle Elimination
valore: 114.2
categoria doc: Rectangle_Elimination
If +7[A9] then -7[G9] forcing +7[G6] which removes all 7s from box 2, so A9 cannot be 7
Last candidate 8 in A9 changed to solution
Passo 9
Naked Singles
valore: 2.2
categoria doc: Getting_Started
Last candidate 3 in D9 changed to solution
Passo 10
Pointing Pairs
valore: 61.5
categoria doc: Intersection_Removal
Pair: between Box 9 and Col 7:
- 3 can be removed from C7
Passo 11
X-Wing
valore: 119.7
categoria doc: X_Wing_Strategy
(Row->Col) 8 taken off B1, based on BE35
(Row->Col) 8 taken off B6, based on BE35
(Row->Col) 8 taken off E2, based on BE35
(Row->Col) 8 taken off E8, based on BE35
Last candidate 9 in E8 changed to solution
Passo 12
Naked Singles
valore: 2
categoria doc: Getting_Started
Last candidate 8 in D8 changed to solution
Passo 13
Hidden Singles
valore: 3.7
categoria doc: Getting_Started
9 in A5 is last in column
9 in D4 is last in row/box
Passo 14
Hidden Singles
valore: 3.5
categoria doc: Getting_Started
7 in C6 is last in box
7 in H5 is last in column
Passo 15
Naked Singles
valore: 1.6
categoria doc: Getting_Started
Last candidate 2 in G6 changed to solution
Passo 16
Naked Singles
valore: 1.6
categoria doc: Getting_Started
Last candidate 5 in H6 changed to solution
Passo 17
Naked Singles
valore: 1.5
categoria doc: Getting_Started
Last candidate 6 in B6 changed to solution
Passo 18
Naked Singles
valore: 1.5
categoria doc: Getting_Started
Last candidate 2 in C4 changed to solution
Last candidate 4 in D6 changed to solution
Passo 19
Naked Singles
valore: 1.4
categoria doc: Getting_Started
Last candidate 5 in B4 changed to solution
Last candidate 6 in C7 changed to solution
Last candidate 3 in C8 changed to solution
Last candidate 8 in F6 changed to solution
Passo 20
Naked Singles
valore: 1.1
categoria doc: Getting_Started
Last candidate 7 in A7 changed to solution
Last candidate 8 in B5 changed to solution
Last candidate 5 in E5 changed to solution
Last candidate 6 in F4 changed to solution
Passo 21
Naked Singles
valore: 1
categoria doc: Getting_Started
Last candidate 1 in A8 changed to solution
Last candidate 3 in E2 changed to solution
Last candidate 5 in F1 changed to solution
Passo 22
Naked Singles
valore: 0.8
categoria doc: Getting_Started
Last candidate 6 in A1 changed to solution
Last candidate 5 in A3 changed to solution
Last candidate 2 in B8 changed to solution
Last candidate 8 in E3 changed to solution
Last candidate 4 in F2 changed to solution
Passo 23
Naked Singles
valore: 0.7
categoria doc: Getting_Started
Last candidate 1 in D1 changed to solution
Last candidate 7 in F8 changed to solution
Passo 24
Naked Singles
valore: 0.6
categoria doc: Getting_Started
Last candidate 3 in B1 changed to solution
Last candidate 6 in D2 changed to solution
Last candidate 2 in F9 changed to solution
Passo 25
Naked Singles
valore: 0.5
categoria doc: Getting_Started
Last candidate 1 in B3 changed to solution
Last candidate 7 in J1 changed to solution
Passo 26
Naked Singles
valore: 0.4
categoria doc: Getting_Started
Last candidate 3 in G3 changed to solution
Last candidate 1 in J9 changed to solution
Passo 27
Naked Singles
valore: 0.3
categoria doc: Getting_Started
Last candidate 1 in G4 changed to solution
Last candidate 9 in H9 changed to solution
Last candidate 5 in J2 changed to solution
Last candidate 2 in J3 changed to solution
Passo 28
Naked Singles
valore: 0.2
categoria doc: Getting_Started
Last candidate 9 in G2 changed to solution
Last candidate 7 in G9 changed to solution
Last candidate 8 in H1 changed to solution
Last candidate 3 in H4 changed to solution
Last candidate 3 in J7 changed to solution
Passo 29
Naked Singles
valore: 0.1
categoria doc: Getting_Started
Last candidate 9 in C1 changed to solution
Last candidate 8 in C2 changed to solution
Last candidate 1 in H2 changed to solution
Last candidate 2 in H7 changed to solution