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STAGE 2 STRESS TEST · GRAND MARTINGALE VS FLAT BETTING

Grand Martingale (2x+1) vs. Flat 1-Unit Baseline — 18% Tie-Heavy Shoe under No-Commission Banker 6 Half-Pay (80-Hand Stress Test)

In head-to-head trial S120-0 across 80 deals (No-Comm High-Tie, 1.4579% edge), Grand Martingale records a -44u peak boundary and 29.90% ruin probability on a 85-unit stack, whereas Flat Betting logs a -17u trough and 5.73% ruin under the 60-unit limit. Because every 8-deck coup is statistically independent under No-Commission Banker 6 (0.50:1 on 6) (1.4579% edge), progression rules alter drawdown speed and table-cap collisions without changing per-hand expectation.

Grand Martingale Ruin Rate
29.90%
Flat Betting Ruin Rate
5.73%
Peak Trough (5-Run)
-44u
No-Comm High-Tie House Edge
1.4579%
Engine-Verified Scoreboard · 18 Hands

Read the Board at Table Speed

Open this shoe in /calculator
Big Road B B P P B B B P P B B P P B P B
Big Eye Boy = = ≠ = ≠ ≠ = = = = = = ≠ =
Small Road ≠ ≠ ≠ ≠ ≠ ≠ = = = = ≠ ≠
Cockroach Pig ≠ = = ≠ ≠ ≠ ≠ = = ≠ ≠

Reference 8-deck shoe for Stress Cell S120 (Grand Martingale vs Flat Betting, 18% Tie-Heavy Shoe under No-Commission Banker 6 Half-Pay). Big Road shows Banker (red) and Player (blue); derived roads track symmetry.

Big Road B is Banker, P is Player Roads under it Red (=): repeating Blue (≠): breaking
Step-by-Step Mark Proofs (Rule 1 & Rule 2)
Big Eye Boy Mark #2

Column 2 has 2 beads. Column 1 has 2 beads. Same depth → red (=).

  1. Column 3 starts, so use Rule 1: compare Column 2 with Column 1, 1 column further back.
  2. Column 2 has 2 beads. Column 1 has 2 beads. Same depth → red (=).

Common table reading watchout: Comparing the wrong columns. Compare Column 2, the one that just finished, with Column 1.

Small Road Mark #2

Column 4 has 1 bead. Column 2 has 2 beads. Different depth → blue (≠).

  1. Column 5 starts, so use Rule 1: compare Column 4 with Column 2, 2 columns further back.
  2. Column 4 has 1 bead. Column 2 has 2 beads. Different depth → blue (≠).

Common table reading watchout: Comparing the wrong columns. Compare Column 4, the one that just finished, with Column 2.

Cockroach Pig Mark #2

This bead is at Row 2. Column 2 has a bead at Row 2 too → red (=).

  1. Column 5 goes down to Row 2, so use Rule 2: look 3 columns back, at Column 2.
  2. Column 2 has a bead at Row 2 too → red (=).

Common table reading watchout: Thinking "no bead at this row" means blue. It is blue only when Column 2 stopped exactly one row above this bead.

Verified Reference Data

Key Facts & Table Specifications

Matchup & Shoe Profile
Grand Martingale vs Flat Betting (No-Comm High-Tie)

Stress cell S120 compares 1-3-7-15-31-63-127 against 1-1-1-1 constant unit over 80 hands.

Head-to-Head Ruin Rate
29.90% vs 5.73%

Probability of exhausting the 85-unit bankroll under a 60-unit house bet limit.

Expected Session Hold
7.54u vs 1.21u

Theoretical erosion under No-Commission Banker 6 (0.50:1 on 6) (1.4579% house edge) across 80 coups.

Peak Drawdown Excursion
-44u vs -17u

Deepest unit trough triggered by a 5-hand run inside the high-tie shoe profile.

Tie Stalls & Commission Toll
15 Ties · 4.67u Drag

Reflects 18.75% tie frequency (15 pushes) and 4.67u in vigorish friction.

STRESS CELL S120 · HIGH-TIE SHOE PROFILE

Grand Martingale vs. Flat Betting variance-scaled exposure (80 Hands · S120)

Within commission-adjusted testbed S120-1, a 85-unit bankroll facing 80 coups of No-Comm High-Tie (high-tie) and a 60-unit maximum wager dissects 29.90% ruin (7.54u expected loss) on Grand Martingale (2x+1) versus 5.73% ruin (1.21u expected loss) on Flat 1-Unit Baseline.

In head-to-head trial S120-2 across 80 deals (No-Comm High-Tie, 1.4579% edge), Grand Martingale records a -44u peak dispersion and 29.90% ruin probability on a 85-unit stack, whereas Flat Betting logs a -17u trough and 5.73% ruin under the 60-unit limit.

S120 exposureGrand MartingaleFlat Betting
Grand Martingale / Flat Betting Rule1-3-7-15-31-63-1271-1-1-1 constant unit
80-Hand Ruin (85u)29.90%5.73%
No-Comm High-Tie Hold (1.4579%)7.54u1.21u
5-Run Trough (60u Cap)-44u-17u
VIGORISH & TABLE CEILING INTERACTION

No-Comm High-Tie Vigorish (4.67u) & 18.75% Tie Push Audit (S120)

Within discrete-time testbed S120-3, a 85-unit bankroll facing 80 coups of No-Comm High-Tie (high-tie) and a 60-unit maximum wager computes 29.90% ruin (7.54u expected loss) on Grand Martingale (2x+1) versus 5.73% ruin (1.21u expected loss) on Flat 1-Unit Baseline.

In head-to-head trial S120-4 across 80 deals (No-Comm High-Tie, 1.4579% edge), Grand Martingale records a -44u peak distribution and 29.90% ruin probability on a 85-unit stack, whereas Flat Betting logs a -17u trough and 5.73% ruin under the 60-unit limit.

  • Trial S120: set a 85u stop before running Grand Martingale vs Flat Betting over 80 hands.
  • Scenario S120 tabulates 4.67u in commission drag and 15 tie pushes (18.75% Tie rate).
  • Board rule S120: derived road red marks variance-scaled column repetition and blue marks a structural break (exposure), never Banker or Player.
Table Reality Check

Myth vs. Truth

MythSwitching from Flat Betting to Grand Martingale during 18% Tie-Heavy Shoe under No-Commission Banker 6 Half-Pay neutralizes the 1.4579% house edge.
TruthOver 80 hands on a 85-unit stack, Grand Martingale carries 7.54u expected loss (29.90% ruin) vs 1.21u (5.73% ruin) for Flat Betting.
MythDuring a 5-hand high-tie sequence, red marks on Big Eye Boy or Small Road indicate Banker is favored next.
TruthDerived road colors never represent Banker or Player: red denotes repeatingBig Road structure and blue denotes breaking structure.
6 modules · 36 lessons · $25/month · Module 1 (10 lessons) free

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Every reference guide, glossary definition, and road calculator on Baccarat Smart is open for everyone. When you want all 6 modules and 36 lessons (about 5.5 hours of lessons) organized in structured step-by-step order with 74 hands-on boards, 94 quiz checks along the way, and Cloud Shoe Log sync across web, iPhone, and Android, start Module 1 (10 lessons, about 64 minutes of lessons) free or unlock full membership for $25 a month.

  • Structured step-by-step track across Foundations, Big Eye Boy, Small Road, and Cockroach Pig
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