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- Ask Road (問路) 1-2-2-1 Probe #21: B=RRB vs P=BBR
ASK ROAD (問路) MATRIX · ASK021C1221 · 2-VS-1 DERIVED-ROAD SPLIT
Ask Road (問路) Probe #21 [ask021c1221]: Columns 1-2-2-1 → Next Banker (RRB) vs Next Player (BBR)
Column 5 has 2 beads. Column 4 has 2 beads. Same depth → red (=). In Ask-Road probe [ask021c1221], our engine maps trailing Big Road column depths 1-2-2-1 (Columns 3–6 of 10-hand board PPBBPBBPPB) at Monte-Carlo Salle Blanche scoreboards, proving why Next Banker (RRB) and Next Player (BBR) invert across all three derived roads.
- Cols 3–6 Depths
- 1-2-2-1
- Ask Banker Probe
- B → RRB
- Ask Player Probe
- P → BBR
- 2-vs-1 Derived-Road Split
- Hand #11