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STAGE 2 BANKROLL MATRIX · CONTRA D'ALEMBERT · 20U / 1-SHOE
Contra D'Alembert Press — 20-Unit Bankroll & 1-Shoe (72-Hand) Risk-of-Ruin Matrix
Case M301-0 models the bankroll-constrained Contra D'Alembert Press (+1 on win / -1 on loss) across a 20-unit bankroll and a 72-hand (1-shoe) window, where a 40-unit table ceiling and 10-unit stop-loss produce a 37.86% ruin rate while audits an average stake excursion of 1.12x and 0.98u ($25) in theoretical house-edge toll. Every 8-deck hand remains statistically independent (45.86% Banker, 44.62% Player, 9.52% Tie), meaning progression sizing reshapes session variance without altering the house edge.
- Ruin Rate (-10u Stop)
- 37.86%
- Target Hit (+6u Cap)
- 32.21%
- 72-Hand Expected Hold
- 0.98u
- Table Max (5-Step Depth)
- 40u