The best chance of winning is to have you cover quite as much of the board as possible. The double columns or rows betting strategy helps you cover for 24/37 numbers (for European wheel) providing you 64.5% of winning risk. The Roulette table has 3 columns and 3 rows that pay 2-to-1 on each column/row winning. In the double columns/rows betting strategy, you can decide to play on column/row or both. How choose the 2 columns/rows to increase your associated with winning? Many Roulette play
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