Skip to main content
Baccarat Smart
  1. Home
  2. Verified Shoe Walkthroughs
  3. Double-Double Twin Shoe DDT15
TWIN 2x2 COLUMN SYMMETRY · CATALOG DDT15 (SEED 204315)

Double-Double Twin Shoe DDT15: 66-Hand 8-Deck Scoreboard & Derived-Road Audit

Catalog shoe DDT15 (seed 204315) captures a repeating 2-bead BB-PP-BB-PP twin columns testing Rule 1 and Rule 2 Case 1 in tandem across 66 dealt 8-deck hands (31 Banker, 28 Player, 7 Tie). Its 29 logical Big Road columns occupy 29 display columns (C1:2B · C2:2P · C3:2B · C4:2P · C5:2B · C6:2P · C7:2B · C8:2P) and generate 56 Big Eye Boy marks (30R/26B), 54 Small Road marks (30R/24B), and 52 Cockroach Pig marks (40R/12B).

Verified 8-Deck Hands
66 (DDT15)
Outcome Split
31B / 28P / 7T
Peak Streaks
4B · 4P
Big Road Columns
29 Cols
Engine-Verified Scoreboard · 66 Hands

Read the Board at Table Speed

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

DDT15 (seed 204315): 66 hands (31B / 28P / 7T), peak streaks 4B & 4P across 29 logical columns.

Big Road B is Banker, P is Player Roads under it Red (=): repeating Blue (≠): breaking
Step-by-Step Mark Proofs (Rule 1 & Rule 2)
DDT15 Big Eye Boy Entry #5

This bead is at Row 2. Column 3 has a bead at Row 2 too → red (=).

  1. Column 4 goes down to Row 2, so use Rule 2: look 1 column back, at Column 3.
  2. Column 3 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 3 stopped exactly one row above this bead.

DDT15 Small Road Entry #6

Column 5 has 2 beads. Column 3 has 2 beads. Same depth → red (=).

  1. Column 6 starts, so use Rule 1: compare Column 5 with Column 3, 2 columns further back.
  2. Column 5 has 2 beads. Column 3 has 2 beads. Same depth → red (=).

Common table reading watchout: Comparing the wrong columns. Compare Column 5, the one that just finished, with Column 3.

DDT15 Cockroach Pig Entry #3

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

DDT15 8-Deck Hand Distribution
66 Hands (31 Banker / 28 Player / 7 Tie)

Seed 204315 opening column signature: C1:2B · C2:2P · C3:2B · C4:2P · C5:2B · C6:2P · C7:2B · C8:2P.

DDT15 Big Road Span & Max Streaks
Max 4B / Max 4P Across 29 Logical Cols (29 Display Cols)

In a 2-by-2 twin run, the first bead of each pair triggers Rule 1 at Row 1 (comparing prior depth 2 against depth 2) and the second bead triggers Rule 2 Case 1 at Row 2.

DDT15 Big Eye Boy Rule Breakdown
56 Marks (30R / 26B · 53.6% Red across 22 Display Cols)

Rule 1: 27 marks · Rule 2 Case 1: 0 · Case 2: 0 · Case 3: 29.

DDT15 Small Road & Cockroach Pig Tally
SR: 30R/24B (55.6% Red) · CP: 40R/12B (76.9% Red)

When a column finally extends to a third bead at Row 3, it steps exactly one row past the reference column's depth-2 stop point, producing a textbook Rule 2 Case 2 Blue (≠) break.

DDT15 Hand #67 Next-Hand Probe
If B → BEB blue, SR red, CP red | If P → BEB red, SR blue, CP blue

Computed by getNextRoadPredictions() after Hand #66 of DDT15.

DDT15 COLUMN GEOMETRY (DOUBLE-DOUBLE-TWIN)

DDT15 Scoreboard Structure: C1:2B · C2:2P · C3:2B · C4:2P · C5:2B · C6:2P · C7:2B · C8:2P

In catalog shoe DDT15 (seed 204315), 66 total hands resolve into 31 Banker wins, 28 Player wins, and 7 Ties across 29 logical columns (C1:2B · C2:2P · C3:2B · C4:2P · C5:2B · C6:2P · C7:2B · C8:2P). In a 2-by-2 twin run, the first bead of each pair triggers Rule 1 at Row 1 (comparing prior depth 2 against depth 2) and the second bead triggers Rule 2 Case 1 at Row 2.

Tracking DDT15 column by column shows peak runs of 4B and 4P spreading across 29 Big Road display columns: DDT15 records 27 Rule 1 new-column checks, 0 Rule 2 Case 1 covered-row checks, 0 Rule 2 Case 2 one-past-bottom breaks, and 29 Rule 2 Case 3 deep-tail checks.

Opening 10 Big Road Columns of DDT15 (Seed 204315)
Column & SpanBeadsRunning TallyGrid StopDepth Pair
DDT15-C01 (H1–H2)2B (BB) [DDT15]2B/0P (+0T @DDT15-C1)DDT15 Row2 Stop (Col1)NextColVsDDT15-C1: 2v2
DDT15-C02 (H3–H4)2P (PP) [DDT15]2B/2P (+0T @DDT15-C2)DDT15 Row2 Stop (Col2)NextColVsDDT15-C1: 2v2
DDT15-C03 (H5–H6)2B (BB) [DDT15]4B/2P (+0T @DDT15-C3)DDT15 Row2 Stop (Col3)NextColVsDDT15-C2: 2v2
DDT15-C04 (H7–H9)2P (PP) [DDT15]4B/4P (+1T @DDT15-C4)DDT15 Row2 Stop (Col4)NextColVsDDT15-C3: 2v2
DDT15-C05 (H10–H11)2B (BB) [DDT15]6B/4P (+0T @DDT15-C5)DDT15 Row2 Stop (Col5)NextColVsDDT15-C4: 2v2
DDT15-C06 (H12–H13)2P (PP) [DDT15]6B/6P (+0T @DDT15-C6)DDT15 Row2 Stop (Col6)NextColVsDDT15-C5: 2v2
DDT15-C07 (H14–H16)2B (BB) [DDT15]8B/6P (+1T @DDT15-C7)DDT15 Row2 Stop (Col7)NextColVsDDT15-C6: 2v2
DDT15-C08 (H17–H18)2P (PP) [DDT15]8B/8P (+0T @DDT15-C8)DDT15 Row2 Stop (Col8)NextColVsDDT15-C7: 2v2
DDT15-C09 (H19–H20)2B (BB) [DDT15]10B/8P (+0T @DDT15-C9)DDT15 Row2 Stop (Col9)NextColVsDDT15-C8: 2v2
DDT15-C10 (H21–H22)2P (PP) [DDT15]10B/10P (+0T @DDT15-C10)DDT15 Row2 Stop (Col10)NextColVsDDT15-C9: 2v2
  • DDT15 BEB #5 (RED): verified at DDT15 lookback-1 index 4 (30R/26B total).
  • DDT15 SR #6 (RED): verified at DDT15 lookback-2 index 5 (30R/24B total).
  • DDT15 CP #3 (RED): verified at DDT15 lookback-3 index 2 (40R/12B total).
DDT15 DERIVED-ROAD & CUT-CARD PROBE

DDT15 Lookback Split (30R/26B BEB · 30R/24B SR · 40R/12B CP)

When a column finally extends to a third bead at Row 3, it steps exactly one row past the reference column's depth-2 stop point, producing a textbook Rule 2 Case 2 Blue (≠) break. Across DDT15, Big Eye Boy prints 30 Red (53.6%) and 26 Blue marks, Small Road prints 30 Red (55.6%) and 24 Blue marks, and Cockroach Pig prints 40 Red (76.9%) and 12 Blue marks.

At the DDT15 cut card after Hand #66, probing Hand #67 via getNextRoadPredictions() yields Banker → BEB BLUE / SR RED / CP RED and Player → BEB RED / SR BLUE / CP BLUE for DDT15.

Table Reality Check

Myth vs. Truth

MythThe second bead of each pair in DDT15 marks Blue because the 2-bead column is about to end.
TruthAt Row 2 in DDT15, the reference column also has a bead at Row 2, so Rule 2 Case 1 marks Red (=); a break only appears if a column stops at 1 or extends to Row 3.
6 modules · 36 lessons · $25/month · Module 1 (10 lessons) free

Read Every Derived Road at Table Speed

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
  • 74 interactive lesson scoreboards and 94 inline quiz checks with plain-English mark feedback
  • Cloud Shoe Log and cross-device progress on web, iOS, and Android