#N 20-cell-quadratic-growth.rle
#O dani, 4 April 2022
#C
#C This is the smallest known pattern by population that exhibits
#C quadratic growth as of February 2023, improving on the record held
#C since 2014 by switch-engine-ping-pong.rle. Starting from an unnamed
#C 9-cell island on the left that turns into H+SE and an 11-cell GPSE
#C (glider-producing switch engine) predecessor, the switch-engine-
#C pair breeder produces a BLSE (block-laying switch engine) every
#C 11136 generations. Its bounding box is significantly more compact
#C than previous record holders as well.
#C 
#C Reference:
#C https://conwaylife.com/wiki/20-cell_quadratic_growth
x = 97, y = 33, rule = B3/S23
94bo$92bobo$94b2o6$88b3o11$96bo$95b2o8$3bob2o$2bo3bo$bo$bo$obo!
