Simple chess board created with Python 3.6

Here's my real first projet in python and I'm very proud of it ;) This project has a interactive board made with tkinter. I tried to make board.py as general as possible so that it can be used in other projects!!!

• Graphic Animations
• Castlings, En Passant Captures and Pawn Promotions
• Control check, occupied squares and pins to limit pieces' moves
• Detect checkmate and draw like stalemate
• Save two players' moves in a list

• add comments and make the code more readable
• put choices for the Pawn's promotion
• maybe add a timer with the players' moves and buttons to replay and give up

Board and graphic animations are inspired by Lichess