Start game with random colors: @fbchess play
Pick the colors: @fbchess play white/black
Pick the opponent: @fbchess play white John
Make a move: use Standard Algebraic Notation
@fbchess e4 or @fbchess Pe4 moves pawn to e4
Nbd2 to move knight from b-file to d2
B2xc5 to take on c5 with 2nd rank bishop
e8=Q to promote pawn to queen
0-0-0 or O-O to castle
Claim draw (e.g. 3-fold repetition): @fbchess draw claim
Offer a draw in the current position: @fbchess draw offer
Offer an undo of the last move: @fbchess undo
Resign: @fbchess resign
Show current position: @fbchess show
Show stats between current players: @fbchess stats
Continue a game from another conversation: @fbchess continue
From 1:1 conversation, @fbchess continue with [friend]
From group chat, @fbchess continue from [thread name]