A quantity which describes the degree of curvature of the manifold
, measured in Brians
. High levels of helical stress in a Mornington Crescent game indicate that token vortices may form spontaneously, and at critical levels the entire manifold may splinter. In game variants with limited movement options (particularly Baker Street
) such splintering is often good for breaking multi-level block stalemates.
Helical stress has many causes, from complex token gradients to gravitic influence on quadrant boundaries. It is being increasingly recognised now that Fronsky diagrams are commonly extended to include torsional components.