I've watched a Super Mario Maker player by the name of ReflectivistFox play through a stage called Fermat's Last Theorem twice now. It takes nearly eight minutes, involves an unthinkable number of perfectly calculated moves and jumps, and I can't fathom the patience it took for ReflectivistFox to figure it out. The level's author, Mr_Enzyme, is the one who actually pointed it out to me.
"It's the hardest puzzle I've seen in the game so far," he said, "and I didn't think anyone would beat it for a lot longer, but I underestimated the internet."
One should never underestimate the Internet, but after watching Fermat's Last Theorem, I can understand why he thought the level might continue to perplex.
"I've been working on and off for about a week on solving /u/Mr_Enzyme's extreme puzzle level 'Fermat's Last Theorem'," said ReflectivistFox on reddit yesterday. "Last night, I finally claimed victory! This puzzle is extremely challenging to solve even with the editor (which I used extensively)."
Mr_Enzyme estimated he spent 20-to-30 hours building Fermat's Last Theorem, spread out over an entire week. It took several days for him up upload the course — Mario Maker requires creators to beat their own stages before they can appear — and ultimately had to remove several elements so he could beat it.
"I wanted a complicated, compact level with a lot of interconnected parts where you'd have to use a lot of obscure/advanced tricks to get through," he said. "The name was sort of a joke based on how complicated it was and how long I thought it would take to solve."
The title references a famous maths problem that went unsolved for hundreds of years — 358, to be precise. This Mario Maker stage only lasted a month or so.
If you're having trouble following along with the solution, ReflectivistFox wrote up a breakdown of what they're doing and how they did it. Here's a taste:
Utterly ridiculous, and makes the levels I've complained about look like nothing.