Column 3 has 1 bead. Column 1 has 1 bead. Same depth → red (=). In this engine-verified Small Road (小路 (Siu Lou)) walkthrough, we inspect Mark #1 at Big Road Column 4, Row 1 (looking 2 columns back to Column 1) and trace every step through describeMarkSteps().
RW-SR-R1-RED (Small Road, Lookback 2): Mark #1 at Big Road Column 4, Row 1 → Column 3 has 1 bead. Column 1 has 1 bead. Same depth → red (=).
Column 3 has 1 bead. Column 1 has 1 bead. Same depth → red (=).
Common table reading watchout: Comparing the wrong columns. Compare Column 3, the one that just finished, with Column 1.
Compares Big Road columns separated by 2 columns.
Triggers Rule 1 (Starting a New Column).
Rendered with crisp SIGNAL white (#F4F5F6) lookback boxes.
Steps: 1. Column 4 starts, so use Rule 1: compare Column 3 with Column 1, 2 columns further back. 2. Column 3 has 1 bead. Column 1 has 1 bead. Same depth → red (=).
Next-hand probe on this board: If B → -, If P → -.
When a new Big Road column starts at Row 1 (from Column 4 onward), Small Road applies Rule 1 with a lookback of 2: compare the column that just finished (`Column C - 1`) with the column 2 positions further back (`Column C - 3`).
In `BPPBP...`, Column 1 has 1 Banker bead (`B`), Column 2 has 2 Player beads (`PP`), and Column 3 has 1 Banker bead (`B`). Because Column 3 had only 1 bead, Small Road did not start in Column 3. When Hand 5 starts Column 4 (`P` at Row 1), Small Road places its first mark using Rule 1: compare Column 3 (1 bead) with Column 1 (2 columns further back, 1 bead). Same depth (1 vs 1) → Red (=) solid circle!
Our locked road engine summarizes this exact mark in two steps: 1. Column 4 starts, so use Rule 1: compare Column 3 with Column 1, 2 columns further back. 2. Column 3 has 1 bead. Column 1 has 1 bead. Same depth → red (=).
| Derived Mark | Big Road Position | Rule Applied | Verdict | describeMark() Explanation |
|---|---|---|---|---|
| Mark #1 (Featured) | Col 4, Row 1 | Rule 1 (New Column) | Red (=) | Column 3 has 1 bead. Column 1 has 1 bead. Same depth → red (=). |
| Mark #2 | Col 5, Row 1 | Rule 1 (New Column) | Blue (≠) | Column 4 has 1 bead. Column 2 has 2 beads. Different depth → blue (≠). |
| Mark #3 | Col 5, Row 2 | Rule 2 (Continue Down) | Blue (≠) | This bead is at Row 2. Column 3 stopped at Row 1, one row above → blue (≠). |
| Mark #4 | Col 6, Row 1 | Rule 1 (New Column) | Blue (≠) | Column 5 has 2 beads. Column 3 has 1 bead. Different depth → blue (≠). |
| Mark #5 | Col 6, Row 2 | Rule 2 (Continue Down) | Blue (≠) | This bead is at Row 2. Column 4 stopped at Row 1, one row above → blue (≠). |
| Mark #6 | Col 6, Row 3 | Rule 2 (Continue Down) | Red (=) | This bead is at Row 3. Column 4 stopped at Row 1, more than one row above → red (=). |
Notice that on this exact same hand (Column 4 Row 1), Big Eye Boy compares Column 3 (1 bead) with Column 2 (2 beads) and marks Blue (≠), while Small Road compares Column 3 (1 bead) with Column 1 (1 bead) and marks Red (=)!
Across the full 34-hand board for RW-SR-R1-RED, Small Road records 30 total marks (10 Red = and 20 Blue ≠). Remember that each hand in an 8-deck shoe is an independent event and derived roads describe past column symmetry rather than predicting the next winner.
Enter any sequence to inspect the Big Road, Big Eye Boy, Small Road, Cockroach Pig, and next-hand previews.
About 64 minutes of lessons covering outcomes, the Bead Plate, Big Road columns, and dragon tails.
Train Third-Card Rule decisions, depth counting, lookback column references, and derived-road speed recognition.
Visual step-by-step breakdowns with closed captions, chapter markers, and full searchable transcripts.
Macau Cantonese, French, and mathematical table terms explained in plain English with road diagrams.
Direct answers to real student questions on dragon tails, tie handling, lookback rules, and table variants.
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