The New Sudoku Players' Forum

[aeb]

With the segment:

(5,1)8 > (5,6)3 >> (5,9)4 >>> (5,7)2

the nice loop notation is:

[r5c1](-8-[r5c79])-8-[r5c6](-3-[r5c7])-3-[r5c9]-4-[r5c7]-2-

where [r5c1](-8-[r5c79])-8-[r5c6] means nodes [r5c1] and [r5c6] are consecutive and inferences from the first node are also made to [r5c79].

Thanks! Yes, so you predict the future and I tell what part of the past is needed.

[ronk]

The notation -7- is a weak inference strictly means if the previous node is 7, then the following node must not be 7; both strong link and weak link can have a weak inference.

That sounds like you no longer consider strong links to be a subset of a weak links. If so, congratulations.

[Jeff]

The notation -7- is a weak inference strictly means if the previous node is 7, then the following node must not be 7; both strong link and weak link can have a weak inference.

That sounds like you no longer consider strong links to be a subset of a weak links. If so, congratulations.

It depends on the set elements, Ronk. The set elements in this case are {strong inference, weak inference}, not {candidates in the unit housing the link: 2,3,4,......}.