The D’Alembert is widely considered the least risky roulette strategy
 

The D’Alembert is widely considered the least risky roulette strategy. To use it, you simply increase and decrease your bets by PGSLOT168 one unit on wins and losses. For example, if you bet $1 and lose, you then bet $2, then $3, and so on. When you eventually win, you reduce your wager by one unit.