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STAGE 2 STRESS TEST · 2-1-2 MANHATTAN VS FLAT BETTING

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

When No-Comm High-Tie (high-tie) injects a 5-hand extreme run and 15 tie pushes (18.75% Tie density) over 80 coups, finite-shoe audit S274-0 inspects 2-1-2 Manhattan Progression at 1.90u expected erosion (11.65% ruin) compared with 1.21u (5.73% ruin) for Flat 1-Unit Baseline on 85 units. 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.

2-1-2 Manhattan Ruin Rate
11.65%
Flat Betting Ruin Rate
5.73%
Peak Trough (5-Run)
-28u
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 S274 (2-1-2 Manhattan 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
2-1-2 Manhattan vs Flat Betting (No-Comm High-Tie)

Stress cell S274 compares 2-1-2-3-4-5 against 1-1-1-1 constant unit over 80 hands.

Head-to-Head Ruin Rate
11.65% vs 5.73%

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

Expected Session Hold
1.90u 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
-28u vs -16u

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

Tie Stalls & Commission Toll
15 Ties · 1.18u Drag

Reflects 18.75% tie frequency (15 pushes) and 1.18u in vigorish friction.

STRESS CELL S274 · HIGH-TIE SHOE PROFILE

2-1-2 Manhattan vs. Flat Betting variance-scaled profile (80 Hands · S274)

Benchmark S274-1 documents the commission-adjusted escalation between 2-1-2 Manhattan and Flat Betting over 80 hands of No-Comm High-Tie: with 85 units, a 60-unit cap, and 1.4579% house edge, ruin settles at 11.65% vs 5.73% while commission-adjusted drawdown-slope reaches -28u.

When No-Comm High-Tie (high-tie) injects a 5-hand extreme run and 15 tie pushes (18.75% Tie density) over 80 coups, multi-coup audit S274-2 audits 2-1-2 Manhattan Progression at 1.90u expected erosion (11.65% ruin) compared with 1.21u (5.73% ruin) for Flat 1-Unit Baseline on 85 units.

S274 profile2-1-2 ManhattanFlat Betting
2-1-2 Manhattan / Flat Betting Rule2-1-2-3-4-51-1-1-1 constant unit
80-Hand Ruin (85u)11.65%5.73%
No-Comm High-Tie Hold (1.4579%)1.90u1.21u
5-Run Trough (60u Cap)-28u-16u
VIGORISH & TABLE CEILING INTERACTION

No-Comm High-Tie Vigorish (1.18u) & 18.75% Tie Push Audit (S274)

Benchmark S274-3 profiles the discrete-time exposure between 2-1-2 Manhattan and Flat Betting over 80 hands of No-Comm High-Tie: with 85 units, a 60-unit cap, and 1.4579% house edge, ruin settles at 11.65% vs 5.73% while combinatorial footprint reaches -28u.

When No-Comm High-Tie (high-tie) injects a 5-hand extreme run and 15 tie pushes (18.75% Tie density) over 80 coups, drawdown-weighted audit S274-4 verifies 2-1-2 Manhattan Progression at 1.90u expected erosion (11.65% ruin) compared with 1.21u (5.73% ruin) for Flat 1-Unit Baseline on 85 units.

  • Trial S274: set a 85u stop before running 2-1-2 Manhattan vs Flat Betting over 80 hands.
  • Scenario S274 verifies 1.18u in commission drag and 15 tie pushes (18.75% Tie rate).
  • Board rule S274: derived road red marks variance-scaled column repetition and blue marks a structural break (profile), never Banker or Player.
Table Reality Check

Myth vs. Truth

MythSwitching from Flat Betting to 2-1-2 Manhattan 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, 2-1-2 Manhattan carries 1.90u expected loss (11.65% 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

Read Every Derived Road at Table Speed

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  • Structured step-by-step track across Foundations, Big Eye Boy, Small Road, and Cockroach Pig
  • 74 interactive lesson scoreboards and 94 inline quiz checks with plain-English mark feedback
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