Garden of Eden / Orphan

On 22th January 2012, Marijn Heule, Christiaan Hartman, Kees Kwekkeboom and Alain Noels from the TU Delft, The Netherlands, discovered this orphan of size 153 which sets a new record for minimal density of on-cells to about 0.3203.

As usual the challenge remains: Can you find a smaller one --- i.e. proving that your example has no predecessor in Game of Life and has fewer living cells or fewer total number of cells as any orphan?YES

standings for Garden of Eden and Orphans record attributs2012-02-02
fewest number of living cells of Garden of Eden45
fewest number of totally needed cells for a minimal Orphan92
smallest rectangular bounding box10x10
lowest density of living cells for minimal Orphan0.3203

Achim Flammenkamp
Last update: Bielefeld, den 2012-02-02 16:55:57   o'clock