Passi risolutivi (38)
Passo 1
Naked Singles
valore: 0
categoria doc: Getting_Started
Last candidate 9 in F7 changed to solution
Passo 2
Naked Singles
valore: 2.9
categoria doc: Getting_Started
Last candidate 1 in D9 changed to solution
Passo 3
Naked Singles
valore: 2.9
categoria doc: Getting_Started
Last candidate 5 in D3 changed to solution
Last candidate 4 in D6 changed to solution
Passo 4
Naked Singles
valore: 2.7
categoria doc: Getting_Started
Last candidate 9 in D4 changed to solution
Passo 5
Hidden Singles
valore: 4.8
categoria doc: Getting_Started
1 in B8 is last in row/column/box
2 in G9 is last in column/box
4 in C5 is last in row/box
4 in G4 is last in column
Passo 6
Hidden Singles
valore: 4.2
categoria doc: Getting_Started
4 in E7 is last in column
4 in H8 is last in row/box
6 in C8 is last in column/box
9 in C9 is last in column
Passo 7
Hidden Singles
valore: 3.8
categoria doc: Getting_Started
9 in A2 is last in row/box
9 in E1 is last in column
Passo 8
Naked Pair
valore: 18.2
categoria doc: Naked_Candidates
Naked Pair 3/7 on cells {E8|E9} means
- 3 can be removed from E4
- 3 can be removed from E5
- 3 can be removed from E6
Passo 9
Hidden Pair
valore: 35.5
categoria doc: Hidden_Candidates
Hidden Pair 2/8 in Row J, on cells {J2|J3}
- removes 3 from J2
- removes 3/7 from J3
Passo 10
Naked Pair
valore: 17.1
categoria doc: Naked_Candidates
Naked Pair 2/8 on cells {J2|J3} means
- 8 can be removed from G1
- 8 can be removed from G2
- 8 can be removed from G3
- 8 can be removed from H1
- 8 can be removed from H2
Passo 11
Hidden Pair
valore: 33.3
categoria doc: Hidden_Candidates
Hidden Pair 3/7 in Col 3, on cells {C3|G3}
- removes 2/8 from C3
- removes 1 from G3
Passo 12
Pointing Pairs
valore: 49.5
categoria doc: Intersection_Removal
Pair: between Box 7 and Col 2:
- 1 can be removed from E2
Passo 13
Pointing Pairs
valore: 49.1
categoria doc: Intersection_Removal
Pair: between Box 1 and Row C:
- 2 can be removed from C6
Passo 14
Naked Pair
valore: 16
categoria doc: Naked_Candidates
Naked Pair 3/7 on cells {C3|C6} means
- 7 can be removed from C1
- 3 can be removed from C2
- 7 can be removed from C7
Passo 15
Pointing Pairs
valore: 47
categoria doc: Intersection_Removal
Pair: between Box 7 and Row G:
- 3 can be removed from G5
- 3 can be removed from G6
Passo 16
Pointing Pairs
valore: 46.2
categoria doc: Intersection_Removal
Pair: between Box 9 and Row G:
- 5 can be removed from G1
- 5 can be removed from G2
Passo 17
Line/Unit Reduction
valore: 60.5
categoria doc: Intersection_Removal
Line/Box Reduction: 8s in box 1 remove the following in the same box:
- 8 can be removed from B2
- 8 can be removed from C2
Passo 18
Chute Remote Pair
valore: 73.6
categoria doc: Chute_Remote_Pairs
3 cannot be set in the yellow cells {D5,E5,F5} and with the Remote Pair in C6 and J4 it means:
- 7 can be removed from B4
- 7 can be removed from G6
- 7 can be removed from H6
Passo 19
Hidden Singles
valore: 2.9
categoria doc: Getting_Started
7 in J4 is last in column/box
Passo 20
Naked Singles
valore: 1.4
categoria doc: Getting_Started
Last candidate 9 in J8 changed to solution
Passo 21
Naked Singles
valore: 1.4
categoria doc: Getting_Started
Last candidate 3 in J5 changed to solution
Passo 22
Hidden Singles
valore: 2.6
categoria doc: Getting_Started
9 in G5 is last in row/column/box
Passo 23
Hidden Pair
valore: 25.6
categoria doc: Hidden_Candidates
Hidden Pair 7/8 in Row B, on cells {B1|B9}
- removes 5 from B1
- removes 3 from B9
Passo 24
Hidden Singles
valore: 2.5
categoria doc: Getting_Started
3 in A8 is last in box
3 in E9 is last in column
Passo 25
Naked Singles
valore: 1.2
categoria doc: Getting_Started
Last candidate 7 in E8 changed to solution
Passo 26
Naked Singles
valore: 1.2
categoria doc: Getting_Started
Last candidate 5 in G8 changed to solution
Passo 27
X-Wing
valore: 66.9
categoria doc: X_Wing_Strategy
(Col->Row) 7 taken off G1, based on BH19
Last candidate 6 in G1 changed to solution
Passo 28
Naked Singles
valore: 1
categoria doc: Getting_Started
Last candidate 2 in F1 changed to solution
Passo 29
Naked Singles
valore: 0.9
categoria doc: Getting_Started
Last candidate 1 in F3 changed to solution
Passo 30
Naked Singles
valore: 0.9
categoria doc: Getting_Started
Last candidate 8 in E3 changed to solution
Passo 31
Naked Singles
valore: 0.9
categoria doc: Getting_Started
Last candidate 6 in E2 changed to solution
Last candidate 2 in J3 changed to solution
Passo 32
Naked Singles
valore: 0.8
categoria doc: Getting_Started
Last candidate 5 in E4 changed to solution
Last candidate 8 in J2 changed to solution
Passo 33
Hidden Singles
valore: 1.4
categoria doc: Getting_Started
2 in C2 is last in row/column/box
Passo 34
Bi-value Universal Grave
valore: 40.4
categoria doc: BUG
BUG+1 found in H6, 1 must be the solution
All other incomplete cells contain two candidates apart from H6. Other candidates in H6 would create two or more solutions so they can be removed.
Last candidate 1 in H6 changed to solution
Passo 35
Naked Singles
valore: 0.6
categoria doc: Getting_Started
Last candidate 2 in E6 changed to solution
Last candidate 8 in G6 changed to solution
Last candidate 5 in H2 changed to solution
Last candidate 6 in H5 changed to solution
Passo 36
Naked Singles
valore: 0.5
categoria doc: Getting_Started
Last candidate 7 in A6 changed to solution
Last candidate 3 in B2 changed to solution
Last candidate 5 in B5 changed to solution
Last candidate 1 in E5 changed to solution
Last candidate 7 in G7 changed to solution
Last candidate 7 in H1 changed to solution
Passo 37
Naked Singles
valore: 0.3
categoria doc: Getting_Started
Last candidate 2 in A5 changed to solution
Last candidate 5 in A7 changed to solution
Last candidate 8 in B1 changed to solution
Last candidate 6 in B4 changed to solution
Last candidate 7 in C3 changed to solution
Last candidate 3 in C6 changed to solution
Last candidate 1 in G2 changed to solution
Last candidate 3 in G3 changed to solution
Last candidate 8 in H9 changed to solution
Passo 38
Naked Singles
valore: 0.1
categoria doc: Getting_Started
Last candidate 7 in B9 changed to solution
Last candidate 5 in C1 changed to solution
Last candidate 8 in C7 changed to solution
Last candidate 3 in F4 changed to solution
Last candidate 6 in F6 changed to solution