A quick addendum to my earlier posts on logical pirates. I had searched for quite a while to find the .pdf I knew I had read about this, but could not recall either the author, or the title. My search history is littered with “logical pirates” and “pirate riddle booty”. Great advertisements though. In any case, the author was Ian Stewart (not to be confused with the Ian Stewart that many young distance runners encounter as “the third dude who beat Steve Prefontaine in Munich”), and the article can be found here [PDF link]. A beautifully illustrated, easy to read article that does mine to shame.