First detailed on Reddit in December, and never announced by Facebook, Messenger users can type @fbchess play during conversations to bring up a chess board.
The stealth chess game does not support drag-and-drop functionality, but BetaNews provided instructions, saying that players should select the piece they want to move as follows:
- King: K
- Queen: Q
- Bishop: B
- Knight: N
- Rook: R
- Pawn: P
They must then determine the square on the board that they choose to move the piece to, and enter the move similar to the following example: @fbchess Pd3.
According to Mashable, the game also features commands for offering a draw (@fbchess draw offer), undo (@fbchess undo) and resign (@fbchess resign).
Help is available by typing @fbchess help.
Readers: Shall we play a game?