Bongard problems were first devised by the Russian computer scientist Mikhail Moiseevich Bongard 1924–1971. The first publication I know was in a 1967 book. They were intended to be a test for artificial intelligence. In order to keep things controallable, he based them on geometry, which he supposed was culture free.
This months puzzle is absolutely not culture free. Personally, I suppose real artificial intelligence should also be able to deal with cultural aspects.
I wish you all a Merry Christmas!
Bongard problem Christmas**/*****
New puzzles are published at least once a month on Fridays. Solutions are published after one or more weeks. You are welcome to remark on the difficulty level of the puzzles, discuss alternate solutions, and so on. Puzzles are rated on a scale of 1 to 5 stars. You can check your solutions here.
justpuzzles 