Daily Holmes
Study one photograph a day and reason out what it tells you
Emerged finds new products worth a look, daily — what’s new today
A good place to send anyone, from a new analyst to a curious teenager, who needs to feel why their gut is wrong about probability rather than be told.
Math Paradoxes collects 63 counter-intuitive problems, the 100 prisoners and the German tank estimate among them. Each gives you the setup, a game to play in the browser, a simulation that runs many trials, several explanations and harder variants. There are four short courses and a glossary, in English and Ukrainian, with no sign-up. It is by Dmytro Kudrenko, co-founder of Stripo, who says he built it with AI help.
More like this
How Random Are You?
Call out numbers as fast as you can while a Markov model guesses the next one
Bluffalo
A browser party game where friends invent fake answers and hunt for the true one
enigma.design
Take an Enigma machine apart in 3D and watch each keypress travel the rotors
Kin
A logic puzzle where each clue counts the matching tiles beside it
Quix
Ten questions, ten seconds each, against real people in a browser tab