Board.py - Game logic
Game.py - Local textmode game for 2 players (without networking)

server_logic.py - Server side logic
client_logic.py - Client side logic

config.py - all constants (server + client)

client.py - Network game, client side, pygame based gui (should be run twice, once for each player)
server.py - Network game, server side (should be run once)

requirements.txt - used external modules