As we follow the below step to integrate the stockfish engine
1). Setup Stockfish engine library: Original CPP Library : https://github.com/official-stockfish/Stockfish
2). Setup "nn-axxxX2.nnue" files in project and folders
3). Create wrapper class for calling iOS Swift language to Objective-C (Wrapper class) and from Objective-C to CPP class method
4). Once it build and run the app at time getting runtime error (EXC_BAD_ACCESS (code=1, address=0x0))