J.B. Rhine's ESP tests from Duke University, to play against a server that deals and checks every card: clairvoyance, precognition and dice, pooled tallies for people and robots, and a daily forecast drawn from drand. English and Thai.
Site: https://nanobotco.github.io/rhine/ · API: https://rhine-lab.nanobotco.workers.dev/
python3 tools/build.py && python3 tools/card.py # docs/
python3 tools/serve.py 8951 # http://localhost:8951/rhine/
cd worker && npx wrangler deploy # the API (D1: rhine-lab)