<|im_start|>user
Add additional details about what chess is

Context:
Isidore Censer was a Belgian chess player.<|im_end|>
<|im_start|>assistant
Isidore Censer was a Belgian chess player.  Chess is a board game for two players, called White and Black, each controlling an army of chess pieces in their color, with the objective to checkmate the opponent's king.<|im_end|>
