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Arctic or Andes?
Distinguish Greenland from Peru and Bolivia. Assign probabilities to the two regions.
Geography · 20 questions
Play Rankings & statisticsA little of everything
Six questions across geography, science and history. Three or four choices, one probability distribution.
General knowledge · 6 questions
Play Rankings & statisticsDistribute 100% among all choices. Each answer earns 100 × ln(number of choices × probability of the correct choice). Equal probabilities earn zero. Minimum probabilities keep losses finite. Guests can play without registering; register in the same session to retain your new-engine guest attempts.