Updated every Monday, Wednesday and Friday ... and maybe other days too.
Sunday, December 22, 2013
I saw this puzzle briefly over a cup of coffee in the bar of a near-deserted business hotel in an industrial park north of Zaragoza a few weeks ago.
It was in El Periódico de Aragón but the paper didn't seem to give any details as to the origin of the puzzle, so let me know via the comments box if you know it. But please, only post solutions and suggestions that you've worked out yourselves without computer aid!