Roullete is a gambling game in which players place bets on the outcome of a spin of a wheel. The game was invented in France by a 17th-century French mathematician named Blaise Pascal and is played at casinos, racetracks, and other gaming establishments. The game consists of a table marked off with several sections affording the players various betting opportunities, and in the center a revolving, dishlike device (a roulette wheel) that contains thirty-six compartments painted alternately red and black and numbered nonconsecutively from one to 36, plus two green ones labelled zero and 00.
Bets placed on the numbers are known as inside bets. Bets placed on other sections of the table are outside bets. Inside bets offer a higher payout if they win, but their odds of winning are lower. Outside bets are safer plays, but have a lower payout if they win.
The Dozens Bet: Also known as douzaine in French, this is a wager that the winning number will be in the first dozen on the layout (1-12), the second dozen (12-18), or the third dozen (19-36). This bet pays 2-1.
The Line Bet/Six Number Bet/Sixline Bet: Also known as cheval in French, this is a wager that your chip(s) will straddle the line between two adjacent numbers on the layout. This bet pays 17-1 if it wins.