Passi risolutivi (26)
Passo 1
Hidden Singles
valore: 5.4
categoria doc: Getting_Started
3 in A7 is last in column/box
4 in H8 is last in column/box
5 in J3 is last in column/box
7 in B2 is last in column/box
8 in C4 is last in column/box
9 in D4 is last in column/box
Passo 2
Naked Singles
valore: 2.4
categoria doc: Getting_Started
Last candidate 2 in J4 changed to solution
Passo 3
Hidden Singles
valore: 4.4
categoria doc: Getting_Started
4 in G6 is last in column
Passo 4
Hidden Singles
valore: 4.2
categoria doc: Getting_Started
7 in J5 is last in box
Passo 5
Naked Singles
valore: 2.1
categoria doc: Getting_Started
Last candidate 1 in J7 changed to solution
Passo 6
Hidden Singles
valore: 3.8
categoria doc: Getting_Started
1 in G1 is last in row
1 in H5 is last in column/box
Passo 7
Hidden Singles
valore: 3.6
categoria doc: Getting_Started
6 in B5 is last in column
6 in H6 is last in row/box
Passo 8
Hidden Singles
valore: 3.3
categoria doc: Getting_Started
5 in A6 is last in column
6 in C8 is last in row/box
Passo 9
Naked Singles
valore: 1.6
categoria doc: Getting_Started
Last candidate 2 in A5 changed to solution
Passo 10
Naked Singles
valore: 1.5
categoria doc: Getting_Started
Last candidate 3 in B6 changed to solution
Last candidate 3 in F5 changed to solution
Passo 11
Naked Singles
valore: 1.4
categoria doc: Getting_Started
Last candidate 7 in C6 changed to solution
Last candidate 2 in F6 changed to solution
Passo 12
Hidden Singles
valore: 2.5
categoria doc: Getting_Started
1 in C9 is last in row/box
Passo 13
Naked Pair
valore: 12.1
categoria doc: Naked_Candidates
Naked Pair 2/3 on cells {C1|C3} means
- 2 can be removed from B1
Passo 14
Pointing Pairs
valore: 35.9
categoria doc: Intersection_Removal
Pair: between Box 9 and Col 9:
- 5 can be removed from E9
Passo 15
Pointing Pairs
valore: 35.1
categoria doc: Intersection_Removal
Pair: between Box 6 and Col 8:
- 8 can be removed from A8
- 8 can be removed from B8
Last candidate 7 in A8 changed to solution
Last candidate 2 in B8 changed to solution
Passo 16
Hidden Singles
valore: 2.1
categoria doc: Getting_Started
7 in F7 is last in row/box
7 in G9 is last in column
Passo 17
Naked Singles
valore: 1
categoria doc: Getting_Started
Last candidate 2 in G7 changed to solution
Passo 18
Naked Singles
valore: 0.9
categoria doc: Getting_Started
Last candidate 6 in D7 changed to solution
Last candidate 3 in G2 changed to solution
Last candidate 5 in H9 changed to solution
Passo 19
Naked Singles
valore: 0.8
categoria doc: Getting_Started
Last candidate 9 in E7 changed to solution
Last candidate 5 in G4 changed to solution
Last candidate 3 in H4 changed to solution
Passo 20
Naked Singles
valore: 0.7
categoria doc: Getting_Started
Last candidate 2 in E9 changed to solution
Passo 21
Hidden Singles
valore: 1.2
categoria doc: Getting_Started
6 in E2 is last in row/column/box
Passo 22
Chute Remote Pair
valore: 29.6
categoria doc: Chute_Remote_Pair
Neither 8/9 can be set in the yellow cells {G3,H3,J3} and with the Remote Pair in B1 and F2 it means:
8 can be taken off D2 ('either end' rule)
Passo 23
Bi-value Universal Grave
valore: 33.8
categoria doc: BUG
BUG+1 found in F3, 8 must be the solution
All other incomplete cells contain two candidates apart from F3. Other candidates in F3 would create two or more solutions so they can be removed.
Last candidate 8 in F3 changed to solution
Passo 24
Naked Singles
valore: 0.5
categoria doc: Getting_Started
Last candidate 9 in A3 changed to solution
Last candidate 2 in D3 changed to solution
Last candidate 9 in F2 changed to solution
Last candidate 1 in F8 changed to solution
Passo 25
Naked Singles
valore: 0.4
categoria doc: Getting_Started
Last candidate 8 in A9 changed to solution
Last candidate 8 in B1 changed to solution
Last candidate 3 in C3 changed to solution
Last candidate 4 in D2 changed to solution
Last candidate 5 in E8 changed to solution
Last candidate 2 in H2 changed to solution
Passo 26
Naked Singles
valore: 0.1
categoria doc: Getting_Started
Last candidate 9 in B9 changed to solution
Last candidate 2 in C1 changed to solution
Last candidate 5 in D5 changed to solution
Last candidate 8 in D8 changed to solution
Last candidate 3 in E1 changed to solution
Last candidate 1 in E3 changed to solution
Last candidate 4 in E5 changed to solution
Last candidate 9 in H1 changed to solution
Last candidate 4 in J1 changed to solution
Last candidate 8 in J2 changed to solution