Open Range
Five prices, each from a different country. Give a low and a high. If the real price lands inside, you score up to 100 points, more the narrower your range.
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How scoring works
Width is the high divided by the low. A range of $2 to $4 is 2x wide and scores 67 if it lands. A 1.25x range scores 89. A range 8x wide or more scores the minimum of 10, and ranges wider than 12x are not allowed. A miss scores 0 however close it was, though we tell you how close.
The skill here is knowing how sure you are. A range from the typical price divided by 1.5 to the typical price times 1.5 lands about three times in five. Knowing that Switzerland runs dear and Egypt runs cheap is what lets you tighten the range.
Questions
How do you play Open Range?
A daily estimation game: give a price range for five everyday items in five countries. A hit scores more the narrower it is, a miss scores nothing. Score out of 500.
When does Open Range reset?
A new Open Range puzzle starts at midnight in your own time zone. Everyone gets the same puzzle on the same date, so you can compare scores with friends.
Can I play yesterday's Open Range?
Yes. The games archive replays every past Open Range puzzle. Archive plays are saved apart from today's game and never change your streak.
Where can I find past Open Range answers?
The answers page lists every Open Range answer with the figures behind it. Each day goes up two days after it ends, so no puzzle that is still live anywhere gets spoiled.
Where do the Open Range numbers come from?
Prices come from The Economist's Big Mac Index, Numbeo, GlobalPetrolPrices.com and other published surveys, across 49 countries. Every figure is a published number with its source named on the page, and the methodology page lists each source and its licence.
Is Open Range free?
Yes. There is no account, no download and no paywall. Your results stay in your own browser.