Passi risolutivi (23)
Passo 1
Hidden Singles
valore: 5.6
categoria doc: Getting_Started
2 in F1 is last in box
3 in H7 is last in row
8 in B8 is last in row/box
8 in F7 is last in column
8 in G1 is last in row/box
9 in D9 is last in box
Passo 2
Naked Singles
valore: 1
categoria doc: Getting_Started
Last candidate 7 in A7 changed to solution
Passo 3
Naked Singles
valore: 2.2
categoria doc: Getting_Started
Last candidate 1 in A8 changed to solution
Last candidate 5 in C7 changed to solution
Passo 4
Naked Singles
valore: 2.2
categoria doc: Getting_Started
Last candidate 3 in A9 changed to solution
Passo 5
Naked Singles
valore: 2.1
categoria doc: Getting_Started
Last candidate 2 in C9 changed to solution
Passo 6
Hidden Singles
valore: 3.9
categoria doc: Getting_Started
2 in B3 is last in row/column/box
6 in E8 is last in box
7 in G3 is last in box
7 in H8 is last in row
8 in D4 is last in row
8 in E2 is last in column/box
Passo 7
Naked Singles
valore: 1.6
categoria doc: Getting_Started
Last candidate 1 in D3 changed to solution
Passo 8
Hidden Singles
valore: 3.2
categoria doc: Getting_Started
2 in J8 is last in column/box
3 in D6 is last in row/box
Passo 9
Hidden Pair
valore: 29.2
categoria doc: Hidden_Candidates
Hidden Pair 4/5 in Row J, on cells {J5|J9}
- removes 1/6/9 from J5
- removes 1 from J9
Passo 10
Hidden Singles
valore: 2.8
categoria doc: Getting_Started
1 in G9 is last in column/box
9 in J7 is last in row
Passo 11
Naked Singles
valore: 1.3
categoria doc: Getting_Started
Last candidate 6 in G7 changed to solution
Passo 12
Line/Unit Reduction
valore: 50.1
categoria doc: Intersection_Removal
Line/Box Reduction: 4s in box 5 remove the following in the same box:
- 4 can be removed from D5
- 4 can be removed from F4
- 4 can be removed from F5
- 4 can be removed from F6
Passo 13
Rectangle Elimination
valore: 61.9
categoria doc: Rectangle_Elimination
If +5[J5] then -5[D5] forcing +5[D8] which removes all 5s from Box 9, so J5 cannot be 5
Last candidate 4 in J5 changed to solution
Passo 14
Naked Singles
valore: 1.1
categoria doc: Getting_Started
Last candidate 9 in G6 changed to solution
Last candidate 5 in J9 changed to solution
Passo 15
Naked Singles
valore: 1
categoria doc: Getting_Started
Last candidate 4 in F9 changed to solution
Last candidate 5 in G4 changed to solution
Last candidate 4 in G8 changed to solution
Passo 16
Naked Singles
valore: 0.9
categoria doc: Getting_Started
Last candidate 5 in D8 changed to solution
Last candidate 7 in F2 changed to solution
Passo 17
Naked Singles
valore: 0.8
categoria doc: Getting_Started
Last candidate 4 in D1 changed to solution
Last candidate 7 in D5 changed to solution
Passo 18
Naked Singles
valore: 0.7
categoria doc: Getting_Started
Last candidate 6 in A1 changed to solution
Passo 19
Naked Singles
valore: 0.6
categoria doc: Getting_Started
Last candidate 9 in A5 changed to solution
Last candidate 3 in C3 changed to solution
Last candidate 1 in J1 changed to solution
Passo 20
Naked Singles
valore: 0.3
categoria doc: Getting_Started
Last candidate 4 in A2 changed to solution
Last candidate 1 in B5 changed to solution
Last candidate 7 in C1 changed to solution
Last candidate 2 in E5 changed to solution
Last candidate 3 in J2 changed to solution
Last candidate 6 in J3 changed to solution
Passo 21
Naked Singles
valore: 0.2
categoria doc: Getting_Started
Last candidate 9 in B2 changed to solution
Last candidate 3 in B4 changed to solution
Last candidate 7 in B6 changed to solution
Last candidate 1 in C2 changed to solution
Last candidate 4 in E6 changed to solution
Last candidate 6 in H5 changed to solution
Passo 22
Naked Singles
valore: 0.1
categoria doc: Getting_Started
Last candidate 6 in C6 changed to solution
Last candidate 9 in E4 changed to solution
Last candidate 5 in F5 changed to solution
Last candidate 1 in H4 changed to solution
Passo 23
Naked Singles
valore: 0
categoria doc: Getting_Started
Last candidate 4 in C4 changed to solution
Last candidate 6 in F4 changed to solution
Last candidate 1 in F6 changed to solution
Last candidate 2 in H6 changed to solution