Roulette systems and what they do not do
Martingale, d’Alembert, and Fibonacci change stake size. They do not change the wheel.
Progressions
A martingale doubles after a loss so one win covers the earlier bets. Table limits and your balance stop the sequence. The zero still takes even-money bets.
A d’Alembert step is gentler and still has a negative expectation. Writing the bets in a notebook does not create an edge.
A usable rule
If you use a system, cap the number of steps in advance and include the cap in your loss limit. When the cap hits, the session is over.
No brand on this list disables the house edge because a visitor followed a progression.
On this ranking
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