Need a free chess engine in C #, who came across?

Question

C++ / C#

Hello!
I am looking for a free C# chess engine.
Just screw it to the 3D view. (Unity)
Required:

1. Game Intelligence
   
2. Data transfer to input/output type "E2-E1"
   
3. Checking progress and positions
   

Optional: multithreading, documentation with examples, opensource.

Answer 1

What platform is the project for?
So was the port of stockfish under .net

Answer 2

You can google for "unity chess github".