Passi risolutivi (31)
Passo 1
Hidden Singles
valore: 6.2
categoria doc: Getting_Started
5 in B7 is last in column/box
7 in J2 is last in row/box
8 in A1 is last in column
8 in J5 is last in column
Passo 2
Hidden Singles
valore: 5.3
categoria doc: Getting_Started
3 in H3 is last in box
5 in A3 is last in row/box
7 in A8 is last in box
7 in B5 is last in row
8 in C9 is last in column
8 in G7 is last in row/box
Passo 3
Hidden Singles
valore: 4.8
categoria doc: Getting_Started
4 in G3 is last in column/box
6 in C3 is last in box
Passo 4
Naked Pair
valore: 22.3
categoria doc: Naked_Candidates
Naked Pair 1/9 on cells {F2|F8} means
- 9 can be removed from F3
- 9 can be removed from F4
- 9 can be removed from F6
- 1 can be removed from F7
Passo 5
Naked Pair
valore: 21.7
categoria doc: Naked_Candidates
Naked Pair 2/9 on cells {G2|H1} means
- 2/9 can be removed from G1
- 2/9 can be removed from J1
Passo 6
Naked Pair
valore: 21.3
categoria doc: Naked_Candidates
Naked Pair 2/9 on cells {H1|H5} means
- 2/9 can be removed from H4
- 2 can be removed from H7
Passo 7
Pointing Pairs
valore: 62.7
categoria doc: Intersection_Removal
Pair: between Box 3 and Row C:
- 2 can be removed from C2
- 2 can be removed from C4
- 2 can be removed from C6
Passo 8
Chute Remote Pair
valore: 103.9
categoria doc: Chute_Remote_Pair
2 cannot be set in the yellow cells {D2,E2,F2} and with the Remote Pair in B3 and H1 it means:
- 9 can be removed from B1
Passo 9
X-Wing
valore: 121.3
categoria doc: X_Wing_Strategy
(Row->Col) 9 taken off E3, based on EH15
(Row->Col) 9 taken off E4, based on EH15
(Row->Col) 9 taken off E6, based on EH15
(Row->Col) 9 taken off E9, based on EH15
Passo 10
Hidden Singles
valore: 4
categoria doc: Getting_Started
9 in J9 is last in column
Passo 11
Y-Wing
valore: 153
categoria doc: Y_Wing_Strategy
Y-Wing pattern. Hinge: G2 (2/9), wings F2 G8, therefore
- 1 can be removed from F8
Last candidate 9 in F8 changed to solution
Passo 12
Naked Singles
valore: 1.9
categoria doc: Getting_Started
Last candidate 3 in D8 changed to solution
Last candidate 1 in F2 changed to solution
Passo 13
Naked Singles
valore: 1.7
categoria doc: Getting_Started
Last candidate 7 in D7 changed to solution
Passo 14
Naked Singles
valore: 1.6
categoria doc: Getting_Started
Last candidate 6 in F7 changed to solution
Passo 15
Hidden Singles
valore: 3.1
categoria doc: Getting_Started
1 in B1 is last in column/box
3 in J7 is last in row/box
Passo 16
Naked Singles
valore: 1.5
categoria doc: Getting_Started
Last candidate 3 in B9 changed to solution
Passo 17
Hidden Singles
valore: 2.8
categoria doc: Getting_Started
2 in C7 is last in column
Passo 18
W-Wing
valore: 66.7
categoria doc: W_Wings
W-Wing (single). Either there is a 2 in B6 or in D4. They are connected through 9 in B3/D3, therefore
- 2 can be removed from A4
- 2 can be removed from D6
- 2 can be removed from E6
Passo 19
W-Wing
valore: 65.3
categoria doc: W_Wings
W-Wing (split double).
Either 2 is in B6 and 9 is in G2 connected through B3C2
Or 9 is in B6 and 2 is in G2 connected through in B3A2
therefore
- 2/9 can be removed from G6
Passo 20
W-Wing
valore: 64
categoria doc: W_Wings
W-Wing (split double).
Either 1 is in C8 and 4 is in H4 connected through J8H7
Or 4 is in C8 and 1 is in H4 connected through in G8H7
therefore
- 1/4 can be removed from C4
Passo 21
Naked Pair
valore: 12.5
categoria doc: Naked_Candidates
Naked Pair 3/9 on cells {C2|C4} means
- 3/9 can be removed from C6
Passo 22
X-Wing
valore: 74.3
categoria doc: X_Wing_Strategy
(Col->Row) 9 taken off D4, based on CG24
Last candidate 2 in D4 changed to solution
Passo 23
Chute Remote Pair
valore: 56.4
categoria doc: Chute_Remote_Pair
9 cannot be set in the yellow cells {D4,E4,F4} and with the Remote Pair in B6 and H5 it means:
- 2 can be removed from A5
- 2 can be removed from J6
Last candidate 6 in A5 changed to solution
Passo 24
Naked Singles
valore: 1.1
categoria doc: Getting_Started
Last candidate 9 in E5 changed to solution
Passo 25
Naked Singles
valore: 1
categoria doc: Getting_Started
Last candidate 8 in D6 changed to solution
Last candidate 2 in E1 changed to solution
Last candidate 2 in H5 changed to solution
Passo 26
Naked Singles
valore: 0.9
categoria doc: Getting_Started
Last candidate 9 in D3 changed to solution
Last candidate 7 in E3 changed to solution
Last candidate 5 in F6 changed to solution
Last candidate 9 in H1 changed to solution
Passo 27
Naked Singles
valore: 0.8
categoria doc: Getting_Started
Last candidate 2 in B3 changed to solution
Last candidate 8 in F3 changed to solution
Last candidate 7 in F4 changed to solution
Last candidate 2 in G2 changed to solution
Passo 28
Naked Singles
valore: 0.7
categoria doc: Getting_Started
Last candidate 3 in A2 changed to solution
Last candidate 9 in B6 changed to solution
Last candidate 1 in G8 changed to solution
Passo 29
Naked Singles
valore: 0.5
categoria doc: Getting_Started
Last candidate 9 in C2 changed to solution
Last candidate 3 in C4 changed to solution
Last candidate 4 in C8 changed to solution
Last candidate 6 in G6 changed to solution
Last candidate 4 in H7 changed to solution
Passo 30
Naked Singles
valore: 0.3
categoria doc: Getting_Started
Last candidate 1 in A9 changed to solution
Last candidate 1 in C6 changed to solution
Last candidate 6 in E4 changed to solution
Last candidate 3 in E6 changed to solution
Last candidate 1 in E7 changed to solution
Last candidate 5 in G1 changed to solution
Last candidate 1 in H4 changed to solution
Last candidate 4 in J6 changed to solution
Last candidate 2 in J8 changed to solution
Passo 31
Naked Singles
valore: 0.1
categoria doc: Getting_Started
Last candidate 4 in A4 changed to solution
Last candidate 2 in A6 changed to solution
Last candidate 4 in E9 changed to solution
Last candidate 9 in G4 changed to solution
Last candidate 6 in J1 changed to solution
Last candidate 5 in J4 changed to solution