Expected value: what a bet is actually worth
How to work out what any bet is worth, why staking systems cannot change it, and the rule for whether a casino bonus is worth taking.
Read article →Articles
Math, house edge and the mechanics crypto casinos would rather you skipped.
7 articles
House edge
What is house edge, and what it costs you
What house edge is, the figure for every major casino bet, and what each costs per hour: $500 lasts 167 hours on blackjack and 2.8 on keno.
Casino math
Casino math: every formula that governs the games
Every casino math formula with a worked number: hold percentage, theoretical win, standard deviation, and why a 5.26% wheel holds 24%.
Probability
Dice probability explained: full odds charts for every combination
Dice probability charted: all 36 two-dice combinations, sums for up to six dice, d4 to d20 odds, and the true cost of each casino dice bet.
House edge
Return to player (RTP): what the percentage actually promises
What RTP means in casino games: the regulator's formula behind 96%, why no session ever shows it, and the dice bets that return 99% or more.
Odds
How gambling odds work: turning probability into a price
How odds work: all three formats in one table, what negative lines like -200 mean, and how true odds tell you whether a price is fair.
Dice basics
Types of dice: every format explained
All dice formats explained, from d4 to d100: what makes a casino die precise, how crooked dice work, and why online dice often are not dice at all.