Passi risolutivi (30)
Passo 1
Naked Singles
valore: 1
categoria doc: Getting_Started
Last candidate 2 in B3 changed to solution
Passo 2
Hidden Singles
valore: 5.8
categoria doc: Getting_Started
1 in A4 is last in row
1 in C3 is last in column/box
1 in G7 is last in column
6 in G4 is last in column/box
Passo 3
Hidden Singles
valore: 5.2
categoria doc: Getting_Started
1 in D5 is last in column
1 in J6 is last in row/box
Passo 4
Hidden Singles
valore: 4.9
categoria doc: Getting_Started
1 in F9 is last in row/column/box
2 in E5 is last in column/box
Passo 5
Hidden Singles
valore: 4.7
categoria doc: Getting_Started
4 in C5 is last in column
Passo 6
Hidden Pair
valore: 44.6
categoria doc: Hidden_Candidates
Hidden Pair 2/9 in Box 3, on cells {C8|C9}
- removes 3/6/8 from C8
- removes 3/5 from C9
Passo 7
Hidden Pair
valore: 42.9
categoria doc: Hidden_Candidates
Hidden Pair 2/8 in Box 7, on cells {G1|G2}
- removes 3/5/9 from G1
- removes 3/4/5 from G2
Passo 8
Hidden Pair
valore: 42.4
categoria doc: Hidden_Candidates
Hidden Pair 3/5 in Col 2, on cells {A2|J2}
- removes 6 from A2
- removes 6 from J2
Passo 9
Hidden Singles
valore: 4.2
categoria doc: Getting_Started
6 in D2 is last in column
Passo 10
Pointing Pairs
valore: 61.5
categoria doc: Intersection_Removal
Pair: between Box 7 and Col 3:
- 4 can be removed from E3
Passo 11
Pointing Pairs
valore: 60.7
categoria doc: Intersection_Removal
Pair: between Box 1 and Col 1:
- 6 can be removed from H1
- 6 can be removed from J1
Passo 12
Pointing Pairs
valore: 59.8
categoria doc: Intersection_Removal
Pair: between Box 2 and Row B:
- 7 can be removed from B7
- 7 can be removed from B9
Passo 13
Pointing Pairs
valore: 59
categoria doc: Intersection_Removal
Pair: between Box 8 and Row H:
- 7 can be removed from H1
- 7 can be removed from H3
Passo 14
Pointing Pairs
valore: 58.6
categoria doc: Intersection_Removal
Pair: between Box 3 and Col 7:
- 8 can be removed from E7
Passo 15
Pointing Pairs
valore: 57.8
categoria doc: Intersection_Removal
Pair: between Box 8 and Col 6:
- 9 can be removed from D6
- 9 can be removed from E6
Passo 16
Hidden Unique Rectangle
valore: 382.4
categoria doc: Hidden_Unique_Rectangles
Type 1: removing 8 at F6 because of EF26 and two strong links on 4
Passo 17
Hidden Unique Rectangle
valore: 379.6
categoria doc: Hidden_Unique_Rectangles
Type 2: removing 8 at F1 because of FG12 and one strong link on 2 between G2 and F2
Passo 18
WXYZ Wing
valore: 376.9
categoria doc: WXYZ_Wing
WXYZ Wing Type 1: The four cells {F8,E7,E8,F1} contain in total 2/3/7/8 with the hinge on F8.
Non-Restricted candidate 7 determines the 'wing' cells (in yellow) and one of those 7s must be true. Therefore...
- 7 can be removed from E3
Last candidate 9 in E3 changed to solution
Passo 19
Naked Singles
valore: 1.8
categoria doc: Getting_Started
Last candidate 4 in G3 changed to solution
Passo 20
Naked Singles
valore: 1.7
categoria doc: Getting_Started
Last candidate 6 in H3 changed to solution
Passo 21
Naked Singles
valore: 1.7
categoria doc: Getting_Started
Last candidate 7 in J3 changed to solution
Passo 22
Hidden Singles
valore: 3.1
categoria doc: Getting_Started
4 in A9 is last in column
4 in H8 is last in row/box
6 in J8 is last in row/box
9 in D4 is last in row/column/box
Passo 23
Naked Singles
valore: 1.3
categoria doc: Getting_Started
Last candidate 3 in A8 changed to solution
Passo 24
Naked Singles
valore: 1.1
categoria doc: Getting_Started
Last candidate 5 in A2 changed to solution
Last candidate 5 in B9 changed to solution
Last candidate 8 in E8 changed to solution
Passo 25
Naked Singles
valore: 0.9
categoria doc: Getting_Started
Last candidate 6 in A1 changed to solution
Last candidate 8 in B7 changed to solution
Last candidate 4 in E2 changed to solution
Last candidate 2 in F8 changed to solution
Last candidate 3 in J2 changed to solution
Passo 26
Naked Singles
valore: 0.6
categoria doc: Getting_Started
Last candidate 7 in A7 changed to solution
Last candidate 3 in C1 changed to solution
Last candidate 6 in C7 changed to solution
Last candidate 9 in C8 changed to solution
Last candidate 7 in D9 changed to solution
Last candidate 7 in F1 changed to solution
Last candidate 8 in F2 changed to solution
Last candidate 9 in J9 changed to solution
Passo 27
Naked Singles
valore: 0.3
categoria doc: Getting_Started
Last candidate 2 in C9 changed to solution
Last candidate 2 in D1 changed to solution
Last candidate 8 in D6 changed to solution
Last candidate 3 in E7 changed to solution
Last candidate 3 in F4 changed to solution
Last candidate 2 in G2 changed to solution
Last candidate 3 in G9 changed to solution
Last candidate 5 in J1 changed to solution
Passo 28
Naked Singles
valore: 0.1
categoria doc: Getting_Started
Last candidate 7 in B4 changed to solution
Last candidate 5 in C6 changed to solution
Last candidate 4 in F6 changed to solution
Last candidate 8 in G1 changed to solution
Last candidate 5 in G5 changed to solution
Last candidate 9 in H1 changed to solution
Last candidate 5 in H7 changed to solution
Passo 29
Naked Singles
valore: 0
categoria doc: Getting_Started
Last candidate 3 in B5 changed to solution
Last candidate 8 in C4 changed to solution
Last candidate 5 in E4 changed to solution
Last candidate 7 in E6 changed to solution
Last candidate 9 in G6 changed to solution
Passo 30
Naked Singles
valore: 0
categoria doc: Getting_Started
Last candidate 7 in H5 changed to solution
Last candidate 3 in H6 changed to solution