User summary Ken Uston's Professional Blackjack supported player vs. computer, player vs. player, or multi-player modes. The software was as much an educational tool as a game, and offered numerous playing hints and tips. The product was distributed with "a coupon that entitles you to a free copy of Million Dollar Blackjack, Ken Uston's authoritative text on the game". Ken Uston's Professional Blackjack was marketed as "grown-up gameware".