Add the first and last numbers in the sequence to determine how many units to wager. The d'Alembert gambling system has similarities with the Fibonacciin that it's reasonably dalembert gambling for alternating resultsbut unlike the Fibonacci system, even a mild consecutive losing streak results in a loss. In this case you would not cross out any numbers, instead adding the amount of units lost to the end of the sequence.inpatient gambling treatment mn GAMBLING COMMISISON The D'Alembert system is one of the simpler betting systems. In terms of its popularity it's probably second only to the Martingale system. It actually shares some. If you are looking for a betting system that minimizes potential losses and maximizes potential profits at the same time, the Contra D'Alembert is a system worth. The D'Alembert method has the reputation to be much safer than the known streak, you don't have to try compensating it by betting more and more chips.