[Haskell-cafe] My knight's tour does not seem to end

[Stephen Tetley]

Apologies -- I was running a wrong snippet. Mark is working correctly,
I'll have another look...

On 10 October 2010 09:15, Stephen Tetley <stephen.tetley at gmail.com> wrote:
> Isn't mark is always increasing the size of the board? - I haven't run
> the code but I if this is the behaviour you want 'mark' is probably
> not a good name (I'd expect mark to be returning something the same
> size but with marked elements).
>
> In _mark_ the before and after are always splits, so the concatenation
> on the first line of the definition of _mark_ is taking the splits and
> adding more between them thus expanding the board.
>