Develop, Test, Analyze and Practice Blackjack or Spanish 21 strategy systems by running simulations based on Game Rules, Play Strategy and Bet Strategy set by you. Export data to a spreadsheet program to do your own analysis. See a graph of Bankroll Balance vs. Hand Number or Session. View game statistics as a simulation progresses. Practice your system as bets are wagered, cards are displayed, decisions are made, and results are shown.