Voisins, Tiers, Orphelins: A Math Tour of Roulette Call Bets
Voisins, Tiers, Orphelins. Pretty French names for fixed neighbor-bet patterns. Same 2.70% edge as any other single-zero bet — here's the wheel math.
La Partage and En Prison: The Two French Rules That Halve the Edge
French roulette's La Partage and En Prison rules cut the even-money house edge from 2.70% to 1.35%. Here's exactly how the math works on a single zero.