Passi risolutivi (29)
Passo 1
Hidden Singles
valore: 5.7
categoria doc: Getting_Started
5 in F6 is last in column/box
5 in H2 is last in row/box
6 in A9 is last in row/box
9 in G5 is last in row/box
Passo 2
Hidden Singles
valore: 5
categoria doc: Getting_Started
2 in B6 is last in column
2 in D4 is last in box
3 in A1 is last in row
3 in B7 is last in box
6 in H3 is last in row/box
Passo 3
Hidden Singles
valore: 4.2
categoria doc: Getting_Started
3 in H4 is last in row
6 in F5 is last in row
9 in C1 is last in column/box
Passo 4
Naked Singles
valore: 1.9
categoria doc: Getting_Started
Last candidate 4 in D5 changed to solution
Passo 5
Naked Singles
valore: 1.9
categoria doc: Getting_Started
Last candidate 3 in E5 changed to solution
Passo 6
Hidden Singles
valore: 3.6
categoria doc: Getting_Started
3 in F3 is last in row/box
9 in E7 is last in column
Passo 7
Hidden Singles
valore: 3.4
categoria doc: Getting_Started
6 in D7 is last in column/box
6 in E2 is last in row
Passo 8
Hidden Singles
valore: 3.2
categoria doc: Getting_Started
1 in F8 is last in box
Passo 9
Naked Singles
valore: 1.5
categoria doc: Getting_Started
Last candidate 2 in F1 changed to solution
Passo 10
Naked Singles
valore: 1.4
categoria doc: Getting_Started
Last candidate 8 in F9 changed to solution
Passo 11
Naked Pair
valore: 13.2
categoria doc: Naked_Candidates
Naked Pair 4/7 on cells {B2|B3} means
- 4 can be removed from B4
- 4/7 can be removed from B8
- 4/7 can be removed from C2
- 4/7 can be removed from C3
Passo 12
Naked Pair
valore: 13.1
categoria doc: Naked_Candidates
Naked Pair 4/7 on cells {B3|E3} means
- 4 can be removed from G3
Passo 13
Naked Pair
valore: 12.9
categoria doc: Naked_Candidates
Naked Pair 1/2 on cells {C2|C3} means
- 1 can be removed from C5
Passo 14
Naked Pair
valore: 12.5
categoria doc: Naked_Candidates
Naked Pair 7/8 on cells {C5|C7} means
- 7/8 can be removed from C8
- 7 can be removed from C9
Passo 15
Naked Pair
valore: 12.4
categoria doc: Naked_Candidates
Naked Pair 4/5 on cells {C8|C9} means
- 4 can be removed from A8
Passo 16
Hidden Pair
valore: 23.7
categoria doc: Hidden_Candidates
Hidden Pair 2/3 in Row J, on cells {J2|J9}
- removes 1/4 from J2
- removes 4/7 from J9
Passo 17
Pointing Pairs
valore: 35.1
categoria doc: Intersection_Removal
Pair: between Box 8 and Row J:
- 8 can be removed from J1
Passo 18
Hidden Singles
valore: 2.3
categoria doc: Getting_Started
8 in G1 is last in column/box
Passo 19
Unique Rectangle Type 1
valore: 42.9
categoria doc: Unique_Rectangle
Uniqueness Type 1 removing 1/2 at G2 because of C2,C3,G3
Passo 20
XY-Chain
valore: 137.7
categoria doc: XY_Chains
length=4, chain ends: J4 and B8
This proves 8 is the solution at one or possibly both ends of the chain
-8[J4]+4[J4]-4[H6]+1[H6]-1[H7]+8[H7]-8[H8]+8[B8]
- 8 can be removed from B4
Last candidate 9 in B4 changed to solution
Passo 21
Naked Singles
valore: 0.9
categoria doc: Getting_Started
Last candidate 4 in A4 changed to solution
Last candidate 8 in B8 changed to solution
Passo 22
Naked Singles
valore: 0.8
categoria doc: Getting_Started
Last candidate 7 in C7 changed to solution
Last candidate 4 in H8 changed to solution
Last candidate 8 in J4 changed to solution
Passo 23
Naked Singles
valore: 0.6
categoria doc: Getting_Started
Last candidate 9 in A8 changed to solution
Last candidate 8 in C5 changed to solution
Last candidate 5 in C8 changed to solution
Last candidate 1 in G7 changed to solution
Last candidate 1 in H6 changed to solution
Passo 24
Naked Singles
valore: 0.5
categoria doc: Getting_Started
Last candidate 7 in A6 changed to solution
Last candidate 4 in C9 changed to solution
Last candidate 2 in G3 changed to solution
Last candidate 8 in H7 changed to solution
Last candidate 7 in J5 changed to solution
Passo 25
Naked Singles
valore: 0.3
categoria doc: Getting_Started
Last candidate 1 in A5 changed to solution
Last candidate 1 in C3 changed to solution
Last candidate 7 in G8 changed to solution
Last candidate 3 in J2 changed to solution
Last candidate 4 in J6 changed to solution
Passo 26
Naked Singles
valore: 0.2
categoria doc: Getting_Started
Last candidate 2 in C2 changed to solution
Last candidate 2 in E8 changed to solution
Last candidate 4 in G2 changed to solution
Last candidate 3 in G9 changed to solution
Last candidate 1 in J1 changed to solution
Last candidate 2 in J9 changed to solution
Passo 27
Naked Singles
valore: 0.1
categoria doc: Getting_Started
Last candidate 7 in B2 changed to solution
Last candidate 5 in D1 changed to solution
Passo 28
Naked Singles
valore: 0
categoria doc: Getting_Started
Last candidate 4 in B3 changed to solution
Last candidate 1 in D2 changed to solution
Last candidate 7 in D9 changed to solution
Last candidate 4 in E1 changed to solution
Passo 29
Naked Singles
valore: 0
categoria doc: Getting_Started
Last candidate 7 in E3 changed to solution
Last candidate 5 in E9 changed to solution