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Size: 875x625 | Tagged: safe, derpibooru import, edit, edited screencap, screencap, button mash, earth pony, pony, colt, cropped, happy, hat, male, myst, riven, text, youtube screencap

Description:

That puzzle is the toughest in the Myst series, with 58,752,420,690,993,751 possible solutions, and one slip in placing means a wrong answer.