Passi risolutivi (35)
Passo 1
Hidden Singles
valore: 6.1
categoria doc: Getting_Started
1 in J9 is last in row/column/box
6 in A2 is last in column/box
6 in C8 is last in row
Passo 2
Hidden Singles
valore: 5.9
categoria doc: Getting_Started
5 in C1 is last in row
Passo 3
Hidden Singles
valore: 5.8
categoria doc: Getting_Started
9 in C6 is last in row
Passo 4
Hidden Singles
valore: 5.5
categoria doc: Getting_Started
9 in J5 is last in column/box
Passo 5
Naked Pair
valore: 26
categoria doc: Naked_Candidates
Naked Pair 7/8 on cells {G2|H2} means
- 7/8 can be removed from B2
- 7 can be removed from D2
- 7/8 can be removed from F2
- 7/8 can be removed from H3
- 7/8 can be removed from J3
Last candidate 3 in F2 changed to solution
Passo 6
Hidden Singles
valore: 5
categoria doc: Getting_Started
8 in F1 is last in row/box
Passo 7
Hidden Singles
valore: 4.8
categoria doc: Getting_Started
4 in E1 is last in column
Passo 8
Naked Pair
valore: 23.1
categoria doc: Naked_Candidates
Naked Pair 1/7 on cells {C3|E3} means
- 1/7 can be removed from B3
Passo 9
Naked Pair
valore: 22.8
categoria doc: Naked_Candidates
Naked Pair 2/4 on cells {H3|J3} means
- 2 can be removed from A3
- 2 can be removed from B3
Passo 10
Pointing Pairs
valore: 67.7
categoria doc: Intersection_Removal
Pair: between Box 3 and Row B:
- 4 can be removed from B4
- 4 can be removed from B6
Passo 11
Pointing Pairs
valore: 66.9
categoria doc: Intersection_Removal
Pair: between Box 4 and Row D:
- 9 can be removed from D8
- 9 can be removed from D9
Passo 12
Line/Unit Reduction
valore: 87.5
categoria doc: Intersection_Removal
Line/Box Reduction: 4s in box 8 remove the following in the same box:
- 4 can be removed from G6
- 4 can be removed from H6
- 4 can be removed from J6
Passo 13
Line/Unit Reduction
valore: 85.3
categoria doc: Intersection_Removal
Line/Box Reduction: 7s in box 5 remove the following in the same box:
- 7 can be removed from D4
- 7 can be removed from E4
- 7 can be removed from E6
- 7 can be removed from F6
Passo 14
W-Wing
valore: 105.9
categoria doc: W_Wings
W-Wing (single). Either there is a 7 in C4 or in E3. They are connected through 1 in B6/E6, therefore
- 7 can be removed from C3
Last candidate 1 in C3 changed to solution
Passo 15
Naked Singles
valore: 2.1
categoria doc: Getting_Started
Last candidate 9 in B2 changed to solution
Last candidate 7 in C4 changed to solution
Last candidate 7 in E3 changed to solution
Passo 16
Naked Singles
valore: 1.8
categoria doc: Getting_Started
Last candidate 2 in A1 changed to solution
Last candidate 9 in D1 changed to solution
Last candidate 1 in D2 changed to solution
Last candidate 3 in E5 changed to solution
Passo 17
Naked Singles
valore: 1.6
categoria doc: Getting_Started
Last candidate 4 in A5 changed to solution
Last candidate 7 in B1 changed to solution
Passo 18
Naked Singles
valore: 1.6
categoria doc: Getting_Started
Last candidate 3 in A6 changed to solution
Passo 19
Naked Singles
valore: 1.5
categoria doc: Getting_Started
Last candidate 8 in A3 changed to solution
Passo 20
Naked Singles
valore: 1.5
categoria doc: Getting_Started
Last candidate 9 in A7 changed to solution
Last candidate 3 in B3 changed to solution
Passo 21
Hidden Singles
valore: 2.5
categoria doc: Getting_Started
3 in D8 is last in row/box
4 in F6 is last in row/column/box
9 in E9 is last in row/box
9 in H8 is last in column
Passo 22
Hidden Singles
valore: 2.2
categoria doc: Getting_Started
5 in E6 is last in column/box
7 in D5 is last in row
7 in F8 is last in box
Passo 23
Naked Singles
valore: 1
categoria doc: Getting_Started
Last candidate 6 in E7 changed to solution
Last candidate 2 in F5 changed to solution
Passo 24
Naked Singles
valore: 0.9
categoria doc: Getting_Started
Last candidate 6 in D4 changed to solution
Last candidate 2 in D9 changed to solution
Last candidate 1 in E4 changed to solution
Last candidate 5 in F9 changed to solution
Passo 25
Naked Singles
valore: 0.7
categoria doc: Getting_Started
Last candidate 2 in B4 changed to solution
Passo 26
Naked Singles
valore: 0.7
categoria doc: Getting_Started
Last candidate 1 in B6 changed to solution
Passo 27
Hidden Singles
valore: 1.1
categoria doc: Getting_Started
5 in B8 is last in column
5 in H7 is last in row/box
6 in G9 is last in column/box
6 in J6 is last in row
Passo 28
Naked Singles
valore: 0.5
categoria doc: Getting_Started
Last candidate 8 in B7 changed to solution
Passo 29
Naked Singles
valore: 0.4
categoria doc: Getting_Started
Last candidate 4 in B9 changed to solution
Last candidate 7 in J7 changed to solution
Passo 30
Naked Singles
valore: 0.4
categoria doc: Getting_Started
Last candidate 3 in G7 changed to solution
Last candidate 8 in H9 changed to solution
Passo 31
Naked Singles
valore: 0.3
categoria doc: Getting_Started
Last candidate 7 in H2 changed to solution
Passo 32
Naked Singles
valore: 0.2
categoria doc: Getting_Started
Last candidate 8 in G2 changed to solution
Last candidate 2 in H6 changed to solution
Passo 33
Naked Singles
valore: 0.2
categoria doc: Getting_Started
Last candidate 4 in G4 changed to solution
Last candidate 7 in G6 changed to solution
Last candidate 4 in H3 changed to solution
Passo 34
Naked Singles
valore: 0.1
categoria doc: Getting_Started
Last candidate 2 in G8 changed to solution
Last candidate 3 in H4 changed to solution
Last candidate 2 in J3 changed to solution
Last candidate 8 in J4 changed to solution
Passo 35
Naked Singles
valore: 0
categoria doc: Getting_Started
Last candidate 4 in J8 changed to solution