This version contains:

Figure moves — ✅

Check — ✅

Checkmate — ✅

Stalemate — ✅

Passed pawn — ✅

Castling - ✅

En passant capture — ❌

Config — ❓

All of the above features will be implemented in the future. ⏳

I would appreciate your ideas and feedback. Please leave them in the issues section of my GitHub repository. 🚀