To use the 1-3-2-6 betting system, you need to determine your betting units. Let’s say you choose €5 as your unit. Bet 1 unit (€5) for the first round. If you win, bet 3 units (€15) on the next round. If you win again, bet 2 units on the third round (€10). If you have another win, bet 6 units (€30) on the fourth round. If you lose a round or complete the sequence, start again at the beginning.