Fibonacci vs D'Alembert
Which roulette betting strategy is right for you? Compare these two popular systems side-by-side.
Fibonacci Strategy
Follow the Fibonacci sequence for bet sizing, moving forward after losses and back after wins.
aggressivemoderatenegative progression
D'Alembert Strategy
Increase bet by one unit after a loss, decrease by one after a win.
moderatesimplenegative progression
Side-by-Side Comparison
| Feature | Fibonacci | D'Alembert |
|---|---|---|
| Style | aggressive | moderate |
| Complexity | moderate | simple |
| Progression Type | negative | negative |
| Best For | Moderate sessions | Conservative players |
Fibonacci
Pros
- ✓Slower progression than Martingale
- ✓Based on famous mathematical sequence
- ✓More sustainable for longer sessions
Cons
- ✗Still leads to large bets over time
- ✗More complex to remember
- ✗Cannot overcome house edge
D'Alembert
Pros
- ✓Very slow and safe progression
- ✓Easy to understand
- ✓Lower variance than Martingale
Cons
- ✗Takes longer to recover losses
- ✗Still cannot beat house edge
- ✗Profit potential is limited
Quick Summary
Quick Simulation: Fibonacci on Red
Starting balance: $1,000 | Base bet: $10 | European roulette odds
Quick Simulation: D'Alembert on Red
Starting balance: $1,000 | Base bet: $10 | European roulette odds