Convert Ed25519 signing keys into Curve25519 Diffie-Hellman keys.
chess-fen is a library which includes tools for working with Forsyth–Edwards Notation (FEN) in an immutable manner.
ESM version of dchest/ed2curve Convert Ed25519 signing keys into Curve25519 Diffie-Hellman keys.
Chess FEN (Forsyth-Edwards Notation) positions analyzer. Having FEN as input helps to identify, e.g. how many pieces left on the board