by Stephanie McCoy and Nándor Sieben

Companion web site

Example of an affine geometry with nim number 6:

• picture of point set (winning set contains the red point)

• coordinates

• structure diagram

• maximal non-generating subsets

Example of an affine geometry with nim number 8:

• picture of point set (winning set contains the red point)

• coordinates

• structure diagram

• maximal non-generating subsets

Example of an edge geometry:

• picture of graph (winning set contains the blue edges)

• winning and Frattini sets

• structure diagram