IM Koustav Chatterjee's hardest chess position challenge

Are you ready to face Koustav's challenge?

Koustav is a multiple time West Bengal State Champion in various age group, he is also a former Commonwealth under-12 Gold medalist. He won Silver in World Youth under-16 Olympiad last year. Last month he secured his final IM-norm at 12th KIIT International to become India's latest International Master.

Before we venture into Koustav's journey to IM title in a separate article, let's find out why he thinks this is the toughest position he has ever done and find a solution of it.

Here is his facebook post:

Let us know your answer in the comments below.

Here is the solution: