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13:37

That game "Pebbling a Chessboard" may not look like interesting at first glance, but it's not such the game, than the solution itself, that it beautiful. And even more than that: it is genius, so this video really is worth watching. Plus the accent and tone of Zvezdelina Stankova are pure delight!


Pebbling a Chessboard - Numberphile


Pebbling a Chessboard - Numberphile

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