ABOUT THIS TRADITIONAL CHART
Four-mark lines
Number Lines is a traditional Play Whe chart that groups marks into fixed four-mark lines. Players can begin with a mark or the recorded Under number, then read the line associated with that starting point as a cultural chart practice.
The historical archive shows how often line members appeared, how frequently several members shared a draw, and where gaps occurred. Those observations describe the recorded data and help explain the chart's history; they do not make a line more likely in a future draw.
Research note: This page presents a traditional chart for reference and exploration. No system changes the odds of a future draw.