The wheel, the ball, and the layout
A roulette wheel contains numbered pockets arranged around its circumference. In European Roulette, these run from 0 to 36 – 37 pockets total. In American Roulette, an additional 00 pocket adds a 38th slot. A small ball is spun around the inner rim of the wheel in the opposite direction of the wheel's rotation. When the ball loses momentum, it drops and settles into one of the numbered pockets.
Before each spin, players place chips on the betting layout – a felt table printed with numbers and grouped betting areas. Every position on the layout corresponds to specific possible outcomes. When the ball lands, jilliace pays winning bets and clears losing ones. That single sequence – bet, spin, result – is the complete cycle of roulette. There are no cards to track, no opponents to read, and no decisions to make once the wheel is in motion.