72 MB and almost 2000 blocks sounds like ur average griffpatch project, here's a turbowarp link in case this lags out https://turbowarp.org/1078716433?fps=60&interpolate&hqpen new features: castling still working on check tho other stuff: material and sound effects i saw sebastian lague use cool looking bitboards for his chess program and i decided i want them too (and screw up horribly during making them) they ended up being pretty darn useful so heres a link: https://www.youtube.com/watch?v=_vqlIPDR2TU