The Whittacker method

The rising method of Whittacker consists in betting, in case of loss of previous game, the sum of the two previous bets. The bet is therefore (for 1 unit) 1, 2, 3, 5, 8, 13, 21...

The advice of WinComparator: the advantage of this rising is to reduce the enthusiasm of bets in the case of consecutive losses. However, just one winning bet won't be enough to recover your losses.