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Reverse D'Alembert roulette strategy mood — Add one unit after a win, subtract one after a loss—gentle positive steps.
BeginnerRisk: MediumPositive progressions

Strategy guide

Reverse D'Alembert (Contre D'Alembert)

Add one unit after a win, subtract one after a loss—gentle positive steps.

Best for: Mild positive progression on even-money bets without full doubling after wins

Overview

Reverse D’Alembert (Contre D’Alembert) flips the classic pyramid: you add one unit after a win and subtract one unit after a loss, never dropping below your base unit.

The idea is to ride short winning clusters with slightly larger bets while keeping losing spins near the floor of the ladder. It is gentler than Paroli-style doubling but still a progression.

Choppy win-loss alternation can leave you stepping up and down without much net progress, while a long win streak slowly lifts exposure.

Nothing in the +1/−1 rules changes the wheel. European even-money house edge is about 2.70% (about 1.35% only with La Partage/En Prison); American double-zero even-money is about 5.26%.

Use it as a simple stake path with a peak cap and a session stop—not as a claim of advantage play.

Reverse D'Alembert roulette strategy mood — Add one unit after a win, subtract one after a loss—gentle positive steps.
Mood of the Reverse D'Alembert approach — same visual language as the strategy library cards.

Visual progression

Reverse D'Alembert: +1 after win / −1 after loss
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How it works

  1. Pick a base unit and an even-money bet type (red/black, odd/even, or high/low).
  2. Start at 1 unit. Place that stake on the first spin.
  3. If you win, next stake = current stake + 1 unit.
  4. If you lose, next stake = current stake − 1 unit, but never below 1 unit.
  5. Optional but recommended: set a peak cap (for example never above 5 or 6 units) so a long hot run does not quietly become a large flat bet.
  6. Optional: reset to 1 unit after a fixed profit in units or after a time limit, even if the ladder is mid-climb.
  7. Do not switch into classic D’Alembert mid-session (raising after losses) unless you intentionally restart under new written rules.
  8. Prefer single-zero tables when you can; lower edge helps every staking plan equally and still does not make this one a winner long-term.

Unit $10 on European black

  1. Spin 1: bet $10 — win $10. Running net +$10. Next stake $20.
  2. Spin 2: bet $20 — win $20. Running net +$30. Next stake $30.
  3. Spin 3: bet $30 — lose $30. Running net $0. Next stake $20.
  4. Spin 4: bet $20 — lose $20. Running net −$20. Next stake $10 (floor).
  5. Spin 5: bet $10 — win $10. Running net −$10. Next stake $20.
  6. Spin 6: bet $20 — win $20. Running net +$10. Next stake $30.
  7. Net depends on order: early wins help, but two medium losses after a climb can erase the streak. A cap at $20 would have limited spin 3’s damage.

Pros

  • Very simple mental arithmetic at the table
  • Softer upside press than Paroli doubling
  • Losses often sit near the base unit once you step down
  • Easy to combine with a hard peak cap and profit stop
  • Clear opposite of classic D’Alembert for learning progressions

Cons

  • Winning streaks still increase money at risk
  • Alternating results can produce a lot of action with little net movement
  • No automatic recovery of a multi-unit drawdown
  • Players sometimes abandon the floor rule and chase after a loss
  • Long-run expectation remains negative under house edge

Bankroll & table limits

  • Because the climb is linear, reverse D’Alembert is usually easier to bankroll than reverse Martingale, but you still need room for several units at the peak you allow.
  • A common educational setup: unit ≈ 0.5%–1% of session bankroll, peak cap at 4–6 units, stop-loss of 15–25 units for the session.
  • If you skip a peak cap, a long win streak turns into large flat bets—budget as if you might sit at the high step longer than planned.
  • American wheels demand more caution for the same unit: higher edge means more expected drain while you wait for “nice” sequences.

Full bankroll guide →

Common mistakes

  • Raising after a loss out of frustration, which converts the system back into classic D’Alembert without a plan
  • No peak cap, so a hot run leaves a large bet on the table right when variance flips
  • Base unit too large, so even a 3–4 unit step is already an aggressive fraction of the bankroll
  • Moving the system onto dozens/columns and expecting the same +1/−1 story to “balance” 2:1 payouts

FAQ

How is this different from classic D’Alembert?

Classic D’Alembert adds a unit after losses and subtracts after wins (negative progression). Reverse does the opposite: press after wins, ease off after losses.

Is Reverse D’Alembert safer than Paroli?

Usually milder stake jumps than doubling after each win. Milder is not profitable—both still face the same even-money house edge.

Should I reset after three wins?

You can. The pure reverse D’Alembert rule only steps ±1 unit; adding a streak or profit reset is a house rule that often improves discipline.

Does it work better on European roulette?

Single-zero even-money (~2.70% edge, ~1.35% with La Partage only) costs less long-term than American double-zero (~5.26%). The progression rules are identical on both.

Can any reverse progression overcome the edge?

No. Positive progressions change when you bet more, not the expected value per dollar wagered. No staking system beats the house edge on fair online or casino wheels.

Compare with other systems

How Reverse D'Alembert sits next to related approaches — open a page when you want the full rules.

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