a short excerpt from -The Science of Duplicate Bridge
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(if you purchase on Amazon (cheap and funny) 100% of all profits go to the ACBL Educational Foundation)
The Science of Duplicate Bridge
A collection of monographs rethinking duplicate bridge in view of modern theoretics
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“All Change!”: A Study in Semi-Structured Chaos — Duplicate Bridge Movement and the Random Walk
by Dr. Mitch Howell, Institute of Motion Analysis……….
………4. Bridge Movement as a Constrained Random Walk
Let us now examine the movement of East-West pairs through the lens of a constrained random walk:
– Step Set: Unlike a true random walk, bridge players have a predefined destination. Yet they often pause mid-step to consult movement slips, ask the director, or chat with friends. Their path from one table to the next is seldom linear.
– Boundary Conditions: Movement is confined within the physical layout of the bridge room. Tables act as barriers; chairs, players, and forgotten handbags provide further obstacles. These boundaries add complexity, creating a semi-reflective, quasi-lattice walk.
– Drift and Directionality: Though the movement is technically directional (from one table to the next), real-world execution introduces randomness: wrong turns, accidental table swaps, or forgetting the movement entirely.
– Error Propagation: Just as in random walks where errors or noise can compound over time, a single misdirected pair can create a domino effect of confusion — a phenomenon every director dreads………………….
Available in both paper and kindle format: https://www.amazon.com/dp/B0GWR6WK95
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