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Mathematical strategy guides

Lower the house edge.

Every game on this page can be played better or worse, and the difference is measurable. These guides cover the decisions that move the number — not betting systems, which do not.

Three games, three sets of odds

Game strategy.

0.50% House edge Online Blackjack Guide & Basic Strategy The lowest house edge of any casino game when played correctly. Rules, card values and the decision table that gets you there. with correct basic strategy Read guide 2.70% House edge European & American Roulette Strategy Wheel layouts and odds. The same bet costs you nearly twice as much on the wrong table, so know which one you are sitting at. single zero, against 5.26% double zero Read guide 2–6% House edge Online Slots & High RTP Machine Guide How to read RTP, volatility and a paytable before you spin, and why the same-looking machine can cost three times as much to play. varies by machine Read guide

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Guides by market.

All 45 market guides →