Passi risolutivi (20)
Passo 1
Hidden Singles
valore: 5
categoria doc: Getting_Started
1 in B9 is last in box
1 in C3 is last in row
2 in A2 is last in row/column/box
2 in F7 is last in column/box
4 in E9 is last in box
6 in A3 is last in row
6 in B5 is last in box
6 in G7 is last in row/box
Passo 2
Naked Singles
valore: 2.1
categoria doc: Getting_Started
Last candidate 3 in G3 changed to solution
Passo 3
Naked Singles
valore: 2
categoria doc: Getting_Started
Last candidate 1 in G5 changed to solution
Passo 4
Naked Singles
valore: 2
categoria doc: Getting_Started
Last candidate 4 in G4 changed to solution
Passo 5
Hidden Singles
valore: 3.5
categoria doc: Getting_Started
4 in D6 is last in row/column/box
5 in B3 is last in column/box
7 in A9 is last in column/box
7 in B4 is last in row
9 in A7 is last in column
Passo 6
Hidden Singles
valore: 3.1
categoria doc: Getting_Started
2 in D5 is last in row/box
2 in H6 is last in column
3 in B7 is last in row
Passo 7
Pointing Pairs
valore: 42.9
categoria doc: Intersection_Removal
Pair: between Box 4 and Col 2:
- 7 can be removed from J2
Passo 8
Line/Unit Reduction
valore: 55
categoria doc: Intersection_Removal
Line/Box Reduction: 3s in box 5 remove the following in the same box:
- 3 can be removed from E5
- 3 can be removed from E6
- 3 can be removed from F5
- 3 can be removed from F6
Passo 9
Naked Triple
valore: 52.8
categoria doc: Naked_Candidates
Naked Triple 3/7/8 on cells {H3|H5|H9} means
- 8 can be removed from H1
- 8 can be removed from H7
- 3/8 can be removed from H8
Passo 10
W-Wing
valore: 65.3
categoria doc: W_Wings
W-Wing (single). Either there is a 8 in B1 or in J7. They are connected through 4 in B2/J2, therefore
- 8 can be removed from J1
Passo 11
W-Wing
valore: 64.6
categoria doc: W_Wings
W-Wing (single). Either there is a 8 in C5 or in F9. They are connected through 3 in H5/H9, therefore
- 8 can be removed from F5
Passo 12
W-Wing
valore: 64
categoria doc: W_Wings
W-Wing (single). Either there is a 3 in C5 or in H9. They are connected through 8 in C7/J7, therefore
- 3 can be removed from H5
Last candidate 7 in H5 changed to solution
Passo 13
Naked Singles
valore: 1.2
categoria doc: Getting_Started
Last candidate 9 in F5 changed to solution
Last candidate 8 in H3 changed to solution
Last candidate 3 in J6 changed to solution
Passo 14
Naked Singles
valore: 1.1
categoria doc: Getting_Started
Last candidate 5 in C6 changed to solution
Last candidate 9 in D3 changed to solution
Last candidate 8 in E5 changed to solution
Last candidate 3 in H9 changed to solution
Passo 15
Naked Singles
valore: 0.8
categoria doc: Getting_Started
Last candidate 8 in A4 changed to solution
Last candidate 3 in C5 changed to solution
Last candidate 8 in C7 changed to solution
Last candidate 6 in E1 changed to solution
Last candidate 8 in F9 changed to solution
Last candidate 7 in J3 changed to solution
Passo 16
Naked Singles
valore: 0.6
categoria doc: Getting_Started
Last candidate 5 in A8 changed to solution
Last candidate 7 in E6 changed to solution
Last candidate 4 in J7 changed to solution
Passo 17
Naked Singles
valore: 0.5
categoria doc: Getting_Started
Last candidate 3 in E2 changed to solution
Last candidate 6 in F6 changed to solution
Last candidate 5 in H7 changed to solution
Last candidate 1 in H8 changed to solution
Last candidate 1 in J2 changed to solution
Passo 18
Naked Singles
valore: 0.3
categoria doc: Getting_Started
Last candidate 8 in D2 changed to solution
Last candidate 5 in E4 changed to solution
Last candidate 9 in E8 changed to solution
Last candidate 7 in F2 changed to solution
Last candidate 3 in F8 changed to solution
Last candidate 4 in H1 changed to solution
Last candidate 9 in J1 changed to solution
Last candidate 8 in J8 changed to solution
Passo 19
Naked Singles
valore: 0.1
categoria doc: Getting_Started
Last candidate 8 in B1 changed to solution
Last candidate 4 in B2 changed to solution
Last candidate 1 in D1 changed to solution
Last candidate 6 in D8 changed to solution
Last candidate 1 in F4 changed to solution
Passo 20
Naked Singles
valore: 0
categoria doc: Getting_Started
Last candidate 3 in D4 changed to solution