How to play
One question a day. The answer is a number. You get six guesses to get within the bullseye.
- 1Type an estimate. Big numbers are fine: 12k, 3.5 million, 2B.
- 2Each guess tells you which way to go (higher or lower) and how close you are.
- 3Closeness is measured on a log scale, so 2× too high is as far off as 2× too low.
- 4Hit the bullseye to win. Each question shows its window: 5% for most, up to 15% when the true figure is itself fuzzy.
Closeness
12,000 metres LowerWarm
21,200 metres HigherHot
- BullseyeInside the question's window (shown under it)
- HotWithin 1.25× either way
- WarmWithin 2× either way
- CoolWithin 10× either way
- ColdMore than 10× off
Score
Your score (0 to 100) comes from your best guess. A bullseye scores 100. Otherwise it depends on how many times off you were, too high or too low alike: 1.25× off scores about 84, 2× off 60, 10× off 18.
A new question goes live at midnight, Athens time.