Translation of "Sagaz" in English

Com uma manobra sagaz, o exército de uniforme preto capturou a dama do adversário, e este se rendeu, pois sem sua figura mais valiosa seria inútil continuar lutando. A batalha estava perdida.

With a shrewd maneuver, the army in black uniform captured the opponent's queen, and they surrendered, because without their most valuable figure it would be useless to continue fighting. The battle was lost.