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Time-lapse video shows man solving world's largest Rubik's Cube

It took him 7.5 hours, but he did it.

Kenneth Brandon (known as RedKB on YouTube) solved the world’s largest — and likely most challenging — Rubik’s Cube: A 17x17x17 block designed by “puzzle legendOskar Van Deventer.

Watch a time-lapse of his accomplishment above.

According to Gizmodo's Andrew Liszewski:

“To put things in perspective, there are 66.9 quinquagintatrecentillion possible ways to scramble a 17x17x17 Rubik’s Cube. That’s 6.69 * 10^1054, written out there would be over a thousand zeroes!”

(Translation: Those of us who fumble aimlessly with a simple 3x3x3 block probably shouldn’t bother to go to battle with this one.)

Brandon, however, makes it sound easy — but very time-consuming.

He worked on the puzzle over five days, starting by solving the cube’s centre and working his way out.

"The way you solve a 17 by 17 is just like you would a seven by seven, or a five by five. If you can solve one of those then the 17 by 17 isn’t that hard, but it is very, very tedious," Brandon explains in the video. “The way I’m solving it is using the ‘reduction method,’ and basically you reduce the cube into a three by three, and then you solve the three by three.”

If you’ve got more than seven hours to spare, watch Brandon solve the puzzle in real time below:

Feeling brave and want to try to solve your own? Order all the parts you need here. (Expect to spend all of your Christmas money. This puzzle isn’t a cheap one.)