Start with the rules
Analysis Tools
Interactive mathematical calculators, probability distribution models, and algorithmic verification tools.
Basic Strategy Trainer & EV Error Calculator
Interactive decision drill for Hard, Soft, and Split pairs. Quantifies exact mathematical EV penalties for suboptimal decisions against any dealer upcard.
Table Rules & House Edge Calculator
Audit the mathematical advantage of any casino blackjack table. Evaluate decks (1–8), S17/H17, 3:2 vs 6:5 payouts, DAS, and surrender deltas.
True Count to EV & Kelly Bet Sizing
Convert Running Count and deck depletion into exact True Count. Calculate player statistical advantage and optimal Half-Kelly bet allocations.
Session Variance & Risk of Ruin Simulator
Model session volatility, confidence bands (±1σ, ±2σ, ±3σ), and lifetime Risk of Ruin under continuous Brownian motion and Schlesinger N-Zero horizons.
Deterministic Client-Side Execution
All mathematical calculations, combinatorial decision trees, Kelly criterion allocations, and Brownian motion simulation models hosted on blackjackmath.org execute exclusively in your local browser sandbox using deterministic JavaScript. No betting logs, bankroll amounts, or session queries are ever transmitted to third-party servers.
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Live blackjack: compare the rules of the selected table
Table selection guide → Visit 1win 18+ · Terms on site
Blackjack: check the selected game and its rules
Table selection guide → Visit Stake 18+ · Terms on siteCheck local availability and the exact table rules before playing. Offers depend on your country and account. Current terms are on the operator’s site.