Passi risolutivi (17)
Passo 1
Hidden Singles
valore: 5.1
categoria doc: Getting_Started
2 in E6 is last in row/box
3 in B5 is last in row/box
4 in A4 is last in column/box
4 in D1 is last in row
4 in F9 is last in column/box
4 in J6 is last in column/box
Passo 2
Naked Singles
valore: 2
categoria doc: Getting_Started
Last candidate 1 in G4 changed to solution
Last candidate 2 in G5 changed to solution
Last candidate 9 in J5 changed to solution
Passo 3
Hidden Singles
valore: 3.9
categoria doc: Getting_Started
1 in D5 is last in row/column/box
4 in B2 is last in column
4 in H3 is last in row/box
Passo 4
Hidden Singles
valore: 3.7
categoria doc: Getting_Started
7 in D6 is last in box
Passo 5
Naked Pair
valore: 17.1
categoria doc: Naked_Candidates
Naked Pair 1/2 on cells {H1|J2} means
- 1/2 can be removed from J1
Passo 6
Naked Pair
valore: 16.5
categoria doc: Naked_Candidates
Naked Pair 3/8 on cells {G1|J1} means
- 8 can be removed from A1
- 8 can be removed from B1
- 8 can be removed from C1
- 3 can be removed from E1
Passo 7
Pointing Pairs
valore: 48.7
categoria doc: Intersection_Removal
Pair: between Box 3 and Col 9:
- 1 can be removed from H9
- 1 can be removed from J9
Passo 8
Pointing Pairs
valore: 47.9
categoria doc: Intersection_Removal
Pair: between Box 3 and Col 9:
- 2 can be removed from H9
- 2 can be removed from J9
Last candidate 9 in H9 changed to solution
Passo 9
Pointing Pairs
valore: 45.8
categoria doc: Intersection_Removal
Pair: between Box 2 and Row C:
- 9 can be removed from C1
- 9 can be removed from C3
Passo 10
Hidden Pair
valore: 29.4
categoria doc: Hidden_Candidates
Hidden Pair 6/9 in Col 1, on cells {A1|E1}
- removes 2/5 from A1
- removes 1/5 from E1
Passo 11
Pointing Pairs
valore: 43.7
categoria doc: Intersection_Removal
Pair: between Box 4 and Col 2:
- 5 can be removed from A2
Passo 12
Hidden Triple
valore: 70.2
categoria doc: Hidden_Candidates
Hidden Triple 1/3/5 in Row E, on cells {E2|E3|E4}
- removes 6 from E2
- removes 9 from E3
- removes 6/9 from E4
Passo 13
Y-Wing
valore: 111.1
categoria doc: Y_Wing_Strategy
Y-Wing pattern. Hinge: H1 (1/2), wings B1 H7, therefore
- 5 can be removed from B7
Passo 14
Hidden Singles
valore: 2.7
categoria doc: Getting_Started
5 in A8 is last in box
5 in B1 is last in row
5 in H7 is last in column
Passo 15
Naked Singles
valore: 0.9
categoria doc: Getting_Started
Last candidate 7 in E8 changed to solution
Last candidate 7 in G7 changed to solution
Last candidate 3 in G9 changed to solution
Last candidate 2 in H1 changed to solution
Last candidate 3 in J1 changed to solution
Last candidate 1 in J2 changed to solution
Last candidate 6 in J9 changed to solution
Last candidate 8 in B7 changed to solution
Last candidate 1 in C1 changed to solution
Last candidate 5 in E2 changed to solution
Last candidate 3 in E4 changed to solution
Last candidate 8 in E9 changed to solution
Last candidate 6 in F2 changed to solution
Last candidate 8 in G1 changed to solution
Last candidate 2 in J7 changed to solution
Passo 16
Naked Singles
valore: 0.2
categoria doc: Getting_Started
Last candidate 2 in A2 changed to solution
Last candidate 7 in A9 changed to solution
Last candidate 7 in B3 changed to solution
Last candidate 1 in B9 changed to solution
Last candidate 8 in C3 changed to solution
Last candidate 9 in C6 changed to solution
Last candidate 2 in C9 changed to solution
Last candidate 9 in E1 changed to solution
Last candidate 1 in E3 changed to solution
Last candidate 6 in E7 changed to solution
Last candidate 3 in F3 changed to solution
Last candidate 8 in F6 changed to solution
Last candidate 6 in A1 changed to solution
Last candidate 9 in A3 changed to solution
Last candidate 8 in A5 changed to solution
Last candidate 5 in C4 changed to solution
Last candidate 7 in C5 changed to solution
Last candidate 9 in D7 changed to solution
Last candidate 9 in F4 changed to solution
Last candidate 5 in F5 changed to solution
Passo 17
Naked Singles
valore: 0
categoria doc: Getting_Started
Last candidate 6 in D4 changed to solution