Passi risolutivi (36)
Passo 1
Naked Singles
valore: 0
categoria doc: Getting_Started
Last candidate 7 in G1 changed to solution
Passo 2
Hidden Singles
valore: 5.3
categoria doc: Getting_Started
5 in J2 is last in row
6 in G2 is last in row/box
8 in H3 is last in column/box
9 in C2 is last in row/box
9 in G8 is last in row/box
Passo 3
Naked Singles
valore: 2.4
categoria doc: Getting_Started
Last candidate 4 in H2 changed to solution
Passo 4
Hidden Singles
valore: 4.6
categoria doc: Getting_Started
4 in E3 is last in row/column/box
Passo 5
Pointing Pairs
valore: 67.3
categoria doc: Intersection_Removal
Pair: between Box 9 and Row H:
- 2 can be removed from H4
- 2 can be removed from H6
Passo 6
Pointing Pairs
valore: 66.9
categoria doc: Intersection_Removal
Pair: between Box 9 and Row J:
- 4 can be removed from J6
Passo 7
Pointing Pairs
valore: 66
categoria doc: Intersection_Removal
Pair: between Box 5 and Row E:
- 6 can be removed from E7
- 6 can be removed from E8
Passo 8
Rectangle Elimination
valore: 109.4
categoria doc: Rectangle_Elimination
If +1[E2] then -1[A2] forcing +1[A4] which removes all 1s from box 5, so E2 cannot be 1
Passo 9
Pointing Pairs
valore: 65.2
categoria doc: Intersection_Removal
Pair: between Box 4 and Col 1:
- 1 can be removed from C1
Passo 10
Rectangle Elimination
valore: 108
categoria doc: Rectangle_Elimination
If +5[C9] then -5[C1] forcing +5[E1] which removes all 5s from box 6, so C9 cannot be 5
Passo 11
Pointing Pairs
valore: 64.4
categoria doc: Intersection_Removal
Triple: between Box 3 and Col 8:
- 5 can be removed from E8
Passo 12
Rectangle Elimination
valore: 106.6
categoria doc: Rectangle_Elimination
If +8[J6] then -8[D6] forcing +8[D9] which removes all 8s from box 9, so J6 cannot be 8
Passo 13
Hidden Pair
valore: 41.8
categoria doc: Hidden_Candidates
Hidden Pair 2/8 in Box 8, on cells {G4|G6}
- removes 1 from G4
- removes 1/4 from G6
Passo 14
Hidden Singles
valore: 4.2
categoria doc: Getting_Started
4 in G5 is last in row/box
Passo 15
Hidden Singles
valore: 4
categoria doc: Getting_Started
1 in G9 is last in row
Passo 16
Naked Singles
valore: 2
categoria doc: Getting_Started
Last candidate 7 in C9 changed to solution
Passo 17
Hidden Singles
valore: 3.6
categoria doc: Getting_Started
1 in B7 is last in column/box
Passo 18
Hidden Singles
valore: 3.4
categoria doc: Getting_Started
1 in A2 is last in column/box
4 in J7 is last in column
6 in F7 is last in column
Passo 19
Y-Wing
valore: 126.5
categoria doc: Y_Wing_Strategy
Y-Wing pattern. Hinge: J6 (3/7), wings D6 J9, therefore
- 8 can be removed from D9
Last candidate 5 in D9 changed to solution
Passo 20
Hidden Singles
valore: 3
categoria doc: Getting_Started
5 in E1 is last in row/box
8 in D6 is last in row
Passo 21
Naked Singles
valore: 1.4
categoria doc: Getting_Started
Last candidate 3 in C1 changed to solution
Last candidate 2 in G6 changed to solution
Passo 22
Naked Singles
valore: 1.3
categoria doc: Getting_Started
Last candidate 7 in B2 changed to solution
Last candidate 1 in F1 changed to solution
Last candidate 8 in G4 changed to solution
Passo 23
Naked Singles
valore: 1.2
categoria doc: Getting_Started
Last candidate 2 in D2 changed to solution
Passo 24
Naked Singles
valore: 1.1
categoria doc: Getting_Started
Last candidate 3 in E2 changed to solution
Passo 25
Naked Singles
valore: 1.1
categoria doc: Getting_Started
Last candidate 8 in E9 changed to solution
Passo 26
Naked Singles
valore: 1
categoria doc: Getting_Started
Last candidate 3 in J9 changed to solution
Passo 27
Naked Singles
valore: 1
categoria doc: Getting_Started
Last candidate 7 in J6 changed to solution
Passo 28
Naked Singles
valore: 0.9
categoria doc: Getting_Started
Last candidate 8 in J8 changed to solution
Passo 29
Hidden Singles
valore: 1.6
categoria doc: Getting_Started
2 in B4 is last in row/column/box
3 in F8 is last in row/column/box
7 in A4 is last in row/box
7 in E5 is last in column
Passo 30
Naked Singles
valore: 0.7
categoria doc: Getting_Started
Last candidate 2 in E8 changed to solution
Last candidate 9 in F4 changed to solution
Passo 31
Naked Singles
valore: 0.6
categoria doc: Getting_Started
Last candidate 1 in E4 changed to solution
Last candidate 9 in E7 changed to solution
Last candidate 7 in F3 changed to solution
Last candidate 7 in H8 changed to solution
Passo 32
Naked Singles
valore: 0.5
categoria doc: Getting_Started
Last candidate 5 in C4 changed to solution
Last candidate 9 in D3 changed to solution
Last candidate 7 in D7 changed to solution
Last candidate 6 in E6 changed to solution
Last candidate 2 in H7 changed to solution
Passo 33
Naked Singles
valore: 0.3
categoria doc: Getting_Started
Last candidate 6 in B5 changed to solution
Last candidate 3 in H4 changed to solution
Passo 34
Naked Singles
valore: 0.2
categoria doc: Getting_Started
Last candidate 5 in B3 changed to solution
Last candidate 1 in C5 changed to solution
Last candidate 1 in H6 changed to solution
Passo 35
Naked Singles
valore: 0.1
categoria doc: Getting_Started
Last candidate 6 in A3 changed to solution
Last candidate 4 in B8 changed to solution
Last candidate 4 in C6 changed to solution
Last candidate 5 in H5 changed to solution
Passo 36
Naked Singles
valore: 0
categoria doc: Getting_Started
Last candidate 5 in A8 changed to solution
Last candidate 3 in B6 changed to solution
Last candidate 6 in C8 changed to solution