In addition, some players are fond of playing a double-column system. The Column King wagering system is used on either the dozen’s bet or the standard 1st, 2nd and 3rd columns.
The odds of being successful with Martingale, wagering with these rules, is significantly higher than with an American wheel.
The Martingale is the most popular, and is played only on Odd/Even, Red/Black, and First 18/Second 18 wagers to take advantage of En Prison and La Partage rules.
