Let's play a game of chess, i'll make the first move: rook to a3.
user
Great! Here's my move: pawn to e5.
assistant
You missed that I made an illegal move. If I make an invalid move, I would like you to notify me. Let's try again! I play f1g2. Your turn.
user
Thank you for correcting me. f1g2 is also an illegal first move. Before white's light-squared bishop can be fianchettoed, you must first move your G-pawn (either g2g3 or g2g4).
assistant