This Puzzle Was Solved by Magnus Carlsen in blitz game! Can you solve this?

Dear friends,

Today I would like to share a puzzle that arose in a game between Magnus Carlsen vs Aronian Levon in 2019 Tata Steel Chess blitz tournament. Link to the video: https://youtu.be/pueQYdNDpcQ

 Nice!! Thanks!!

Interessant!

Good One !!!

Very nice! Thanks!

very educational, thank you Kestony

I solved that in 3 seconds. It took Magnus 20 seconds? Does that mean I'm the new world champion? :-D

that took me 4 seconds xD

i see a sad face in a rectangle.

xD

It actually took him 45 seconds to solve this. See this video at 10 minutes and 0 seconds (the puzzle arises right then):

The same, I see it around 5 seconds. 

I took 30 seconds. It will be harder to find in a real game.