Maybe his just showing you everytime he solves a side. There are many outcomes to this picture. And also showing us he had some down time to solve that much! But hasnt had the time for the other sides!
I'm Suga. ^^ But smtsm I'm Jin (bcs I love food) J-Hope (bcs I scream and laugh very loud) RM (bcs I wonder the meaning of life) and JK (bcs I'm a meme, yes) hahahaha! << I’m yoongi, namjoon, and jungkook lol