What Can YOU Solve In Under a Second?

Oh yes, it’s Rubik’s Cube time once again.

Every time I think I’ve seen everything someone can do with a Rubik’s Cube, a month or two later, another amazing video appears on the Internet, proving me wrong.

We’ve covered Rubik’s Cubes a lot on this blog. We’ve seen them solved underwater, while being juggled, during a skydive, and yes, we’ve seen them solved in increasing faster times.

As of last year, the record for a robot solving a Rubik’s Cube was .637 seconds. That robot, Sub1, has been the Guinness World Record holder ever since.

Until now, it seems.

That’s a right, a pair of engineers — Ben Katz and Jared Di Carlo — have nearly halved that world record with what they call their “Rubik’s Contraption.” This cube-solving bot posts a solving speed of .38 seconds.

Their machine is so fast that they had to program it to only allow one motor to move at a time. You see, in previous runs, more than one motor would try to move, and the cube would be RIPPED APART.

This lightning-fast robot is still waiting review by the team from Guinness, so, for now, Sub1’s record stands.

But for how long?


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This Rubik’s Cube Feat Is a Real Toss-Up!

You know, every time I think I’ve seen it all when it comes to Rubik’s Cubes, some enterprising solver proves me wrong yet again.

Over the years, I’ve seen a LOT of cool things done with Rubik’s Cubes.

I’ve seen the world’s most complex Rubik’s-style cube being solved, a building turned into a solvable Rubik’s Cube, and a Rubik’s Cube solved one move at a time by strangers across the globe.

I’ve even seen a Rubik’s Cube solved during a skydive.

So when I saw the video below, I originally thought it would fit right in with the cavalcade of impressive solves we’ve shared in the past.

I mean, solving three Rubik’s Cubes in 20 seconds… while juggling them? That’s incredible!

Check it out:

Wait, what’s that?

If you watch very closely, there’s something strange going on in this one.

Yes, it turns out it’s been faked. This is not a real solve.

But the reveal of how they pulled it off is almost more impressive than actually solving them so quickly:

That’s a lot of effort to make it look real.

But has anyone actually done a juggling solve of multiple Rubik’s Cubes?

Yes. A little more searching turns up the following six-minute doozy:

Here, as far as I can tell, is a genuine video of someone solving three Rubik’s Cubes while juggling them. It takes him six minutes, and he solves them one at a time (one twist at a time, every third throw, as you can see if you slow it down).

The camera isn’t steady; it’s constantly moving around. And the daunting length of the video adds to the credibility. You saw all the work that went into digitally animating 20 seconds. Doing so for six straight minutes with far greater variation in light and framing? That would be a Herculean effort in editing.

The only thing that’s weird about this one is how nonchalant everyone around this guy acts while he’s performing an amazing feat of concentration and dexterity.

It might not be a rapid-fire speed-solve, but it is a worthwhile watch nonetheless.

Now, to close out today’s post, here’s the opposite of speed-solving, as two Rubik’s pros take 18 minutes (sped up in the video) to solve the world’s largest Rubik’s Cube:

I like how the sheer size of the cube seems to flummox them a bit. After all, it’s not as easy to look at all sides of the cube and assess it as you would a normal Rubik’s Cube.

Still, it’s a very cool feat to document.

Meanwhile, I’ll be over here, trying to crack a regular old cube. Good thing I’ve got extra time off for the holiday. I’ll need it.


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It’s Follow-Up Friday: Hall of Fame edition!

Welcome to Follow-Up Friday!

Follow-Up Friday is a chance for us to revisit the subjects of previous posts and bring the PuzzleNation audience up to speed on all things puzzly.

And today, I’d like to return to the subject of Dungeons & Dragons!

I’ve written about Dungeons & Dragons and other roleplaying games in the past, because I think they are a wonderful, underappreciated part of the world of puzzles and games. Some of the best and most satisfying riddles and puzzles I’ve ever solved were an integral part of a game of D&D.

So I’m excited to announce that Dungeons & Dragons has been inducted into the National Toy Hall of Fame!

Housed at The Strong National Museum of Play, the National Toy Hall of Fame recognizes those products and improvised toys that have played a crucial role in the development of children and teens.

Whether they assist in hand-eye coordination, storytelling, deduction, athletics, or creativity, they are all classic examples of toys tied to fond memories of childhood. Previous inductees include the Rubik’s Cube (2014), Hot Wheels (2011), the Radio Flyer Wagon (1999), Jacks (2000), and Play-Doh (1998).

And I for one think Dungeons & Dragons is a very worthy addition to this club.

From the induction notice:

Dungeons & Dragons and its imitators actually changed the nature of play.

In Dungeons & Dragons players assume the roles of characters who inhabit a world moderated and narrated by a Dungeon Master, a player who explains the action to others and solicits their reactions to the unfolding story. The Dungeon Master’s storytelling skills and the players’ abilities to imagine add enjoyment to the game. Some aspects of the play are familiar, such as dice. But the special dice for Dungeons & Dragons hold up to 20 sides. Rolling them determines each character’s individual strengths, plots their complex interactions, and decides the outcome of their encounters.

More than any other game, Dungeons & Dragons paved the way for older children and adults to experience imaginative play. It was groundbreaking. And it opened the door for other kinds of table games that borrow many of its unique mechanics.

For over forty years, Dungeons & Dragons has been synonymous with roleplaying, collaborative storytelling, and good old-fashioned sword-swinging derring-do. And I think it’s fantastic that it’s getting some long-overdue recognition for the positive role it has played in so many people’s lives.

Congratulations to you, Dave Arneson and Gary Gygax. Thank you for hours and hours of brilliant, engaging fun.


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