The solutions to today’s puzzlesEarlier today I set you the following puzzles, designed by the South Korean puzzle master Han Dongkyu. The first two are a slow build up to what is one of the most fiendishly brilliant geometrical puzzles I have ever see…
Can you solve it? Russia’s Prime Minister sets a geometry puzzle
The ruler with a rulerEarlier this month, Russia’s Prime Minister, Mikhail Mishustin, marked the first day of the school year by visiting a sixth form maths class at one of his country’s top science-oriented schools.The class was studying a problem abo…
Can you solve it? The magic of the Borromean rings
You will nail this oneThe image above is the Borromean rings, three interlinked rings that have the curious property that when any one of the rings is removed, the other two are no longer linked.The rings are studied by mathematicians and have long bee…
Can you solve it? Logical philosophers
Five existentialists walk into a barToday’s three puzzles are mini-dramas featuring well-known philosophers.1. Late Wittgenstein Continue reading…