Short answer: Roulette uses a numbered wheel and a matching table layout. Inside bets cover specific numbers or small groups; outside bets cover broader groups such as colors or ranges.
Inside and outside bets
An inside bet selects one number or a small combination on the layout. Outside bets cover a wider set of outcomes, such as red or black, odd or even, or a range. Each selection has its own payout and chance of landing, according to the wheel and game rules.
Wheel variants matter
European-style wheels commonly have one zero pocket; American-style wheels commonly have both zero and double zero. Other variants may use different rules. The wheel type affects the distribution of outcomes, so check the table information rather than relying on the game title alone.
Independent spins
A previous result does not make a different result more likely on the next spin. Color streaks and number patterns do not provide a reliable forecast. Treat the game as chance-based and do not chase losses or increase stakes to recover money.
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