Clue to puzzle question #13: Circular Field, Hungry Dog
I have to say this is one of my favourite puzzles, the answer just works so well.
The obvious answer of standing in the middle and running away from the dog simply doesn't work, this is easily provable.
I think at this point a lot of people think well it must be impossible we can't get any further away than R. But think what would happen if we ran in a very tight circle around the center....
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