Abstract: A blackjack play option response indicator which presents the 350 card combinations and the appropriate play option response for each card combination, composed of two disk rotatably connected to each other. The back disk has thereon a plurality of radially arranged rows of play option response indicia, wherein "B" designates "blackjack"; "H" designates "hit"; "S" designates "stand"; "D" designates "double down"; and "SP" designates "split". There are 350 play option response indicia which correspond to the recommended play option responses uniquely corresponding to each and every one of the 350 card combinations possible in blackjack. Adjacent the perimeter of the back disk, dealer's up card value indicia are provided thereon. The front disk is provided with 4 radially arranged rows of apertures for being selectively aligned with the aforementioned play option response indicia.