by David Shaw, 26 May 2021 | 1 comments
Here’s a puzzle that’s easy to set up, but surprisingly tricky to solve. See if you can swap two counters just by sliding them!
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by David Shaw, 20 February 2013 | 0 comments
You might think you’ve got a good handle on distance. But not all things measure distance the same way – what if you were a chess piece?
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