[r-t] parity

Glenn Taylor gaataylor at blueyonder.co.uk
Tue Aug 9 11:50:16 UTC 2005

--- Mark ---
> Surely the easiest way to find the parity of a row is to convert it to a
> coursing order, then you'll know the parity straight off.

How's that then?

Faced with a CO of  265743 I don't *immediately* spot that it's
out-of-course. Yes, I can do a couple of easy transpositions in my head to
get there, but I don't consider this to be a "straight off" solution.

Is there a trick I'm missing?

Glenn Taylor

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