Charlotte Roulette Strategy
Charlotte’s system has incompatible descriptions: text describes an 81-spin straight-up progressionstrategyProgressionAny rule that changes the stake based on previous results. Negative progressions raise it after losses, positive after wins.Read full → beginning at two units, while the graphic presents a low-number bet beginning at three units and a different staged display. They cannot be merged into one rule.
The competing descriptions use different bet types, starts, and schedules. They are useful evidence of uncertainty, but neither proves an effective edge or supplies a unified reproducible progression.
Two incompatible descriptions
One description calls for repeatedly selecting a straight-up number, starts at two unitsmoneyUnitThe base stake a system or a player works in. Progressions are described in units so they apply at any table.Read full →, refers to 81 spins and 506 units, and ends or restarts after a hit. The accompanying graphic instead labels “First 27 Spins,” depicts a three-unit chipmoneyChipA token representing a fixed amount, placed on the layout to make a bet. Also: check.Read full → on low (1–18), and shows an ordered series beginning at 3 rather than 2. A straight-up bet and a low bet have different payoutsmoneyPayoutWhat a winning bet returns, quoted as “X to 1” on top of the returned stake.Read full →, hit probabilities, and loss patterns, so the two accounts cannot be treated as successive parts of one strategy.
What each record actually supplies
The table keeps the claims separate instead of reconstructing a schedule from incompatible fragments.
Worked comparison
A two-unit straight-up win returns 72 units gross under the usual 35:1 payout, for +70 net on that spin. A three-unit low wager instead pays even money: a win returns six gross, for +3 net. These are not alternative calculations of the same bet. Likewise, an 81-spin straight-up claim cannot be reconciled with a graphic headed “First 27 Spins” merely by adding or scaling displayed amounts. There is no justified way to infer omitted stakes, an end-of-cycle action, or a single total bankrollmoneyBankrollThe total amount set aside for play. Bankroll management is deciding how much of it to risk per bet and per session.Read full → from the conflict.
Expectation and risk
Each standard European roulettevariantEuropean rouletteSingle-zero wheel, 37 pockets, house edge 2.70%. The canonical model on this site.Read full → unit retains expected lossmathExpected lossExpected value times total amount wagered; the average amount lost over a session or a period.Read full → 1/37, whether it is placed straight upbetStraight upA single number, pays 35:1.Read full → or on low; the amounts and volatility differ, not the per-unit edge. A purported 81-spin straight-up sequence would have a chance 1 − (36/37)^81 of at least one hit, about 89.13%, but that is neither a profit calculation nor evidence for the low-bet diagram. Before a cycle result, maximum stake, or recovery claim could be tested, one authoritative bet type, ordered stake list, outcome updates, stop rule, and no-hit action would be needed.
Questions
Neither description supports a unified schedule. They disagree on the bet type, opening amount, and horizon, so combining them would invent a third rule.
No. Standard European bets have the same negative expected result per unit staked. Different schedules only change the timing and size of exposure.
Sources
- RouletteDoc, Strategy overview
- Roulette77, “Charlotte” — text claims about the progression
- Roulette77, “Charlotte” diagram — low-bet display and staged entries
- Wizard of Odds, Roulette Basics — straight-up and even-money payouts
- Wizard of Odds, The Truth about Betting Systems — progression stakes retain negative expectation