🎲 Negative Progression Strategy Engine

D'Alembert Betting Calculator

An interactive bankroll ledger, betting unit tracker, and equity simulator built strictly for statistical analysis and bankroll discipline.

💰 Bankroll / Pot

● Auto-syncing in 3s
Current Balance
100
Click to set custom value
+0 (0%)

🎯 Round Actions

Base Unit:
Next Required Bet
1
1 unit(s) @ 1/unit
Streak Status
Initial
Total Rounds 0
Win Ratio 0.0%
Max Bet Reached 1
Net Profit / Loss +0 since session start

📈 Equity Progression Curve

Real-time

📋 History Ledger

0 entries
# Outcome Bet Pot Snapshot
No rounds recorded yet. Click WIN (↑) or LOSE (↓) to begin.

ℹ️ Understanding the D'Alembert Betting System

The D'Alembert System (named after 18th-century French mathematician Jean le Rond d'Alembert) is a negative progression strategy traditionally applied to even-money casino propositions (such as Red/Black in European roulette or Pass/Don't Pass in Craps).

Unlike the aggressive Martingale system (which doubles bet amounts on each loss), the D'Alembert system scales linearly:

⚠️ Mathematical & Gambling Fallacy Disclaimer The D'Alembert strategy is based on the Gambler's Fallacy (the misconception that previous independent outcomes alter future probabilities). In real-world games like roulette, each spin is strictly independent, and the house edge (2.7% on European single-zero, 5.26% on American double-zero) is mathematically invariant. This tool is built purely for algorithmic study, strategy exploration, and personal budgeting. Always practice responsible gaming.