The croupier continued to spin the roulette wheel and announce the results. Each time, someone lost, and someone won.
Sure, unlike poker, roulette was more about luck than skill, but compared to slot machines, where almost nothing depended on the player, mathematics could be useful here.
Some people preferred not to bet on the same color twice, some understood that black or red could easily come up two, three, or even four times in a row, but were wary if the streak continued.
In fact, sitting patiently at the table and waiting for the moment when the same color came up more than three times in a row, and then betting on the opposite color, was a good tactic.
For example, red came up four times in a row. The chances of the ball landing on red for the fifth time were quite small, and it was logical to bet on black this time.
