System 64, as the name suggests, offers a 64% probability of success. This system is also very simple. It makes bets on two of three columns (or two dozen bets of 1-12 / 13-24 / 25-36) with one chip on each bet. In the case of winning, the player receives one chip in profit and he can start betting with one chip again. In case of losing, it is necessary to triple the bets, placing three chips on each bet. This continues until the player wins and bets one chip again. Thus, this strategy is very similar to Martingale, shown by the following simulations of five players.
The pitfall of this system is that bet sizes grow rapidly in the case of multiple consecutive losses. This eventually meant the demise of all five players.