Passi risolutivi (30)
Passo 1
Naked Singles
valore: 1
categoria doc: Getting_Started
Last candidate 7 in E2 changed to solution
Passo 2
Naked Singles
valore: 1
categoria doc: Getting_Started
Last candidate 6 in E8 changed to solution
Passo 3
Hidden Singles
valore: 5.3
categoria doc: Getting_Started
3 in G6 is last in row/box
8 in A8 is last in column
8 in D2 is last in column
Passo 4
Hidden Singles
valore: 4.9
categoria doc: Getting_Started
4 in G5 is last in row/box
8 in B6 is last in row/column/box
Passo 5
Naked Singles
valore: 2.2
categoria doc: Getting_Started
Last candidate 9 in E5 changed to solution
Passo 6
Naked Singles
valore: 2.1
categoria doc: Getting_Started
Last candidate 3 in E7 changed to solution
Passo 7
Naked Singles
valore: 2.1
categoria doc: Getting_Started
Last candidate 4 in E3 changed to solution
Passo 8
Hidden Singles
valore: 4
categoria doc: Getting_Started
2 in B5 is last in row/box
3 in F3 is last in row/box
9 in D7 is last in row/box
Passo 9
Hidden Singles
valore: 3.7
categoria doc: Getting_Started
6 in F6 is last in row
Passo 10
Naked Singles
valore: 1.7
categoria doc: Getting_Started
Last candidate 7 in D6 changed to solution
Passo 11
Naked Singles
valore: 1.7
categoria doc: Getting_Started
Last candidate 1 in D4 changed to solution
Passo 12
Naked Singles
valore: 1.6
categoria doc: Getting_Started
Last candidate 4 in F4 changed to solution
Passo 13
Hidden Singles
valore: 3.1
categoria doc: Getting_Started
4 in A6 is last in column/box
4 in C7 is last in row
7 in H5 is last in row/box
Passo 14
Hidden Singles
valore: 2.8
categoria doc: Getting_Started
1 in J5 is last in column/box
4 in B1 is last in row/column/box
Passo 15
Hidden Singles
valore: 2.6
categoria doc: Getting_Started
3 in A1 is last in column/box
5 in J4 is last in box
Passo 16
Pointing Pairs
valore: 35.5
categoria doc: Intersection_Removal
Pair: between Box 9 and Row J:
- 6 can be removed from J3
Passo 17
Line/Unit Reduction
valore: 46.2
categoria doc: Intersection_Removal
Line/Box Reduction: 9s in box 7 remove the following in the same box:
- 9 can be removed from H3
- 9 can be removed from J3
Last candidate 8 in J3 changed to solution
Passo 18
Hidden Singles
valore: 2.2
categoria doc: Getting_Started
8 in H7 is last in row/column/box
Passo 19
Rectangle Elimination
valore: 53
categoria doc: Rectangle_Elimination
If +2[G8] then -2[D8] forcing +2[D1] which removes all 2s from Box 7, so G8 cannot be 2
Last candidate 1 in G8 changed to solution
Passo 20
Naked Singles
valore: 0.9
categoria doc: Getting_Started
Last candidate 9 in H9 changed to solution
Passo 21
Naked Singles
valore: 0.9
categoria doc: Getting_Started
Last candidate 2 in H6 changed to solution
Last candidate 6 in J9 changed to solution
Passo 22
Naked Singles
valore: 0.8
categoria doc: Getting_Started
Last candidate 5 in H1 changed to solution
Last candidate 9 in J6 changed to solution
Last candidate 2 in J7 changed to solution
Passo 23
Naked Singles
valore: 0.7
categoria doc: Getting_Started
Last candidate 1 in H3 changed to solution
Passo 24
Hidden Singles
valore: 1.3
categoria doc: Getting_Started
1 in A2 is last in column/box
6 in A7 is last in column/box
6 in C5 is last in row
Passo 25
Naked Singles
valore: 0.6
categoria doc: Getting_Started
Last candidate 5 in A5 changed to solution
Passo 26
Rectangle Elimination
valore: 28.2
categoria doc: Rectangle_Elimination
If either +5[B3] or +5[F7] are ON then both are on because they are strongly linked through the hinge cell B7. If both are ON then this removes all 5s from Box 4, so neither can be 5
Last candidate 7 in B3 changed to solution
Last candidate 1 in F7 changed to solution
Passo 27
Naked Singles
valore: 0.3
categoria doc: Getting_Started
Last candidate 9 in A3 changed to solution
Last candidate 3 in B4 changed to solution
Last candidate 5 in B7 changed to solution
Last candidate 7 in F9 changed to solution
Passo 28
Naked Singles
valore: 0.2
categoria doc: Getting_Started
Last candidate 7 in A4 changed to solution
Last candidate 1 in B9 changed to solution
Last candidate 5 in C2 changed to solution
Last candidate 7 in C8 changed to solution
Last candidate 3 in C9 changed to solution
Last candidate 6 in G3 changed to solution
Passo 29
Naked Singles
valore: 0.1
categoria doc: Getting_Started
Last candidate 9 in C4 changed to solution
Last candidate 5 in D3 changed to solution
Last candidate 2 in F2 changed to solution
Last candidate 2 in G1 changed to solution
Passo 30
Naked Singles
valore: 0
categoria doc: Getting_Started
Last candidate 6 in D1 changed to solution
Last candidate 2 in D8 changed to solution
Last candidate 5 in F8 changed to solution
Last candidate 9 in G2 changed to solution