Changing roulette layouts: follow the state

A changing-layout strategy chooses its next wagers from an earlier result or its current state. The rule can be completely reproducible while the next fair spin remains independent. Keep the state, layout and stake amount visible together.

A two-dozen switch

The audited development source includes an older pattern that switches dozens after a loss and resets after a win. A demonstration should identify the current selected dozens before revealing the pocket, settle those wagers, then apply the transition. Selecting a layout after looking at the same spin would introduce future information and invalidate the trace.

For a simple teaching convention, start with first and second dozens, move to second and third after a full miss, and reset after a win. A result of 30 loses the opening layout; the next layout changes. If 6 then lands, it loses the second-plus-third layout. That loss does not imply a later result must favor a currently uncovered dozen.

Wheel neighbors use another geometry

A last-result-neighbors pattern selects pockets adjacent on the wheel, rather than adjacent boxes on the betting grid. On the audited European wheel, a 17-centered five-pocket selection includes its two physical neighbors on each side. The corresponding American selection must use that wheel's own order. A grid corner around 17 is a different set of pockets.

Collecting streets needs a finite rule

Another native legacy pattern collects winning streets and resets after a miss. Before comparing it, specify what counts as a qualifying win, whether duplicate streets add stake, how many streets can accumulate, and when the pattern stops. A label such as follow the winner is too vague to reproduce.

For each spin, record the prior state, placed wagers, pocket, returned chips, net result and next state. Record an invalid or unaffordable requested layout as a stop, rather than silently replacing it. The session reading article shows this accounting on a declared reproducible example trace.

Compare rules without hindsight

Use the same predetermined spin stream for competing patterns and retain stopped runs. The simulation methodology explains why censoring and reset behavior change the interpretation. Use the bet builder to inspect supported fixed wagers and wheel layout guide to distinguish physical neighbors from grid adjacency.