This bead is at Row 2. Column 1 stopped at Row 1, one row above → blue (≠). In this engine-verified Small Road (小路 (Siu Lou)) walkthrough, we inspect Mark #1 at Big Road Column 3, Row 2 (looking 2 columns back to Column 1) and trace every step through describeMarkSteps().
RW-SR-R2-C2 (Small Road, Lookback 2): Mark #1 at Big Road Column 3, Row 2 → This bead is at Row 2. Column 1 stopped at Row 1, one row above → blue (≠).
This bead is at Row 2. Column 1 stopped at Row 1, one row above → blue (≠).
Common table reading watchout: Thinking "no bead at this row" means blue. It is blue only when Column 1 stopped exactly one row above this bead.
Compares Big Road columns separated by 2 columns.
Triggers Rule 2 (Continuing Down a Column).
Rendered with crisp SIGNAL white (#F4F5F6) lookback boxes.
Steps: 1. Column 3 goes down to Row 2, so use Rule 2: look 2 columns back, at Column 1. 2. Column 1 stopped at Row 1, one row above → blue (≠).
Next-hand probe on this board: If B → -, If P → -.
On the Small Road, Rule 2 Case 2 triggers at the exact row where the current Big Road column (`Column C`) steps one bead deeper than the reference column 2 positions back (`Column C - 2`).
In `BPPBBBB...`, Column 1 has 1 Banker bead (`B`, stopping at Row 1), and Column 2 has 2 Player beads (`PP`). When Column 3 (`BBBB`) reaches Row 2, Small Road places its first mark by looking 2 columns back to Column 1. Because Column 1 stopped at Row 1—exactly one row above Row 2—Small Road records a Blue (≠) solid circle.
Our locked road engine summarizes this exact mark in two steps: 1. Column 3 goes down to Row 2, so use Rule 2: look 2 columns back, at Column 1. 2. Column 1 stopped at Row 1, one row above → blue (≠).
| Derived Mark | Big Road Position | Rule Applied | Verdict | describeMark() Explanation |
|---|---|---|---|---|
| Mark #1 (Featured) | Col 3, Row 2 | Rule 2 (Continue Down) | Blue (≠) | This bead is at Row 2. Column 1 stopped at Row 1, one row above → blue (≠). |
| Mark #2 | Col 3, Row 3 | Rule 2 (Continue Down) | Red (=) | This bead is at Row 3. Column 1 stopped at Row 1, more than one row above → red (=). |
| Mark #3 | Col 3, Row 4 | Rule 2 (Continue Down) | Red (=) | This bead is at Row 4. Column 1 stopped at Row 1, more than one row above → red (=). |
| Mark #4 | Col 4, Row 1 | Rule 1 (New Column) | Blue (≠) | Column 3 has 4 beads. Column 1 has 1 bead. Different depth → blue (≠). |
| Mark #5 | Col 4, Row 2 | Rule 2 (Continue Down) | Red (=) | This bead is at Row 2. Column 2 has a bead at Row 2 too → red (=). |
| Mark #6 | Col 5, Row 1 | Rule 1 (New Column) | Red (=) | Column 4 has 2 beads. Column 2 has 2 beads. Same depth → red (=). |
Compare the two roads at Column 3 Row 2 in `BPPBBBB`: Big Eye Boy looks 1 column back at Column 2 (which has 2 beads, reaching Row 2) and marks Red (=), while Small Road looks 2 columns back at Column 1 (which stopped at Row 1) and marks Blue (≠)!
Across the full 34-hand board for RW-SR-R2-C2, Small Road records 30 total marks (11 Red = and 19 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.
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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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