Passi risolutivi (28)
Passo 1
Naked Singles
valore: 1
categoria doc: Getting_Started
Last candidate 3 in D2 changed to solution
Passo 2
Hidden Singles
valore: 5.6
categoria doc: Getting_Started
1 in F9 is last in box
1 in J2 is last in row/box
2 in J8 is last in column/box
6 in B7 is last in column/box
6 in H6 is last in row/box
Passo 3
Hidden Singles
valore: 4.8
categoria doc: Getting_Started
1 in B3 is last in row
1 in C7 is last in column/box
3 in E7 is last in box
6 in A1 is last in column
Passo 4
Hidden Singles
valore: 4.3
categoria doc: Getting_Started
3 in A3 is last in row/box
Passo 5
Naked Pair
valore: 20.8
categoria doc: Naked_Candidates
Naked Pair 8/9 on cells {C3|C9} means
- 8/9 can be removed from C4
- 8/9 can be removed from C6
Passo 6
Naked Pair
valore: 20.1
categoria doc: Naked_Candidates
Naked Pair 2/7 on cells {C4|C6} means
- 7 can be removed from A4
- 7 can be removed from A5
- 7 can be removed from A6
- 2/7 can be removed from B5
Passo 7
Hidden Singles
valore: 3.9
categoria doc: Getting_Started
2 in H5 is last in column
Passo 8
Hidden Singles
valore: 3.7
categoria doc: Getting_Started
2 in B2 is last in column
2 in G1 is last in row/box
Passo 9
Hidden Singles
valore: 3.5
categoria doc: Getting_Started
3 in G6 is last in row
Passo 10
Hidden Singles
valore: 3.4
categoria doc: Getting_Started
3 in F5 is last in row/column/box
Passo 11
Naked Pair
valore: 16.4
categoria doc: Naked_Candidates
Naked Pair 4/8 on cells {D1|D8} means
- 8 can be removed from D4
- 4/8 can be removed from D6
Passo 12
Naked Pair
valore: 16.1
categoria doc: Naked_Candidates
Naked Pair 5/6 on cells {E2|F2} means
- 5 can be removed from E3
- 5 can be removed from H2
Passo 13
Hidden Pair
valore: 30.8
categoria doc: Hidden_Candidates
Hidden Pair 7/9 in Col 8, on cells {A8|B8}
- removes 4/5/8 from A8
- removes 4/8 from B8
Passo 14
Hidden Singles
valore: 3
categoria doc: Getting_Started
5 in A9 is last in row/box
Passo 15
Hidden Singles
valore: 2.9
categoria doc: Getting_Started
4 in B9 is last in box
Passo 16
Hidden Singles
valore: 2.8
categoria doc: Getting_Started
8 in C9 is last in box
Passo 17
Naked Singles
valore: 1.3
categoria doc: Getting_Started
Last candidate 9 in C3 changed to solution
Passo 18
Naked Singles
valore: 1.2
categoria doc: Getting_Started
Last candidate 7 in A2 changed to solution
Last candidate 5 in H3 changed to solution
Passo 19
Naked Singles
valore: 0.9
categoria doc: Getting_Started
Last candidate 9 in A8 changed to solution
Last candidate 8 in B1 changed to solution
Last candidate 4 in G3 changed to solution
Last candidate 9 in H2 changed to solution
Last candidate 8 in H7 changed to solution
Passo 20
Naked Singles
valore: 0.7
categoria doc: Getting_Started
Last candidate 9 in B5 changed to solution
Last candidate 7 in B8 changed to solution
Last candidate 4 in D1 changed to solution
Last candidate 8 in E3 changed to solution
Last candidate 5 in G7 changed to solution
Last candidate 3 in H9 changed to solution
Passo 21
Naked Singles
valore: 0.6
categoria doc: Getting_Started
Last candidate 8 in D8 changed to solution
Last candidate 9 in G4 changed to solution
Last candidate 7 in H1 changed to solution
Last candidate 4 in J7 changed to solution
Last candidate 9 in J9 changed to solution
Passo 22
Naked Singles
valore: 0.6
categoria doc: Getting_Started
Last candidate 3 in J1 changed to solution
Passo 23
Hidden Singles
valore: 1
categoria doc: Getting_Started
5 in J4 is last in row/column/box
9 in E6 is last in row/column/box
Passo 24
Bi-value Universal Grave
valore: 27.2
categoria doc: BUG
BUG+1 found in A6, 8 must be the solution
All other incomplete cells contain two candidates apart from A6. Other candidates in A6 would lead to zero, two or more solutions so they can be removed.
Last candidate 8 in A6 changed to solution
Passo 25
Naked Singles
valore: 0.3
categoria doc: Getting_Started
Last candidate 1 in A4 changed to solution
Last candidate 4 in A5 changed to solution
Last candidate 4 in F6 changed to solution
Last candidate 7 in J6 changed to solution
Passo 26
Naked Singles
valore: 0.1
categoria doc: Getting_Started
Last candidate 2 in C6 changed to solution
Last candidate 2 in D4 changed to solution
Last candidate 7 in E5 changed to solution
Last candidate 5 in F8 changed to solution
Last candidate 8 in J5 changed to solution
Passo 27
Naked Singles
valore: 0
categoria doc: Getting_Started
Last candidate 7 in C4 changed to solution
Last candidate 1 in D6 changed to solution
Last candidate 6 in E4 changed to solution
Last candidate 4 in E8 changed to solution
Last candidate 6 in F2 changed to solution
Passo 28
Naked Singles
valore: 0
categoria doc: Getting_Started
Last candidate 5 in E2 changed to solution
Last candidate 8 in F4 changed to solution