Dual-threaded ultimate warfare.
Pushing human mental capacity to its limits.
Even if it's trial and error, it's still done while flipping the pieces over.
The risk here is, if there's the slightest mistake, it could lead to misremembering the position of the puzzle pieces, causing a chain of errors at the end, a complete mess that can't be salvaged.
Because these two had become the protagonists, the cameras knew exactly to point at Chen Yuan, who was working on a tablet.
Just like that, the big screen showed a boy swiftly sliding the back-facing puzzle pieces...
"Oh my god," a boy leaned back in his chair and covered his face, unable to take it any longer, "Damn, how can he show off like this?"
"That b is just too smooth, he couldn't possibly know what he's actually putting together, right?"
"If he makes one mistake, he'll screw up a bunch later on."
"If he really finishes without even flipping it over to check before submitting, I'd truly respect him as a real man!"