Pattern Library And you do many things like that.

- Y -

• 

  yeast2

  https://conwaylife.com/wiki/Bakery https://www.conwaylife.com/patterns/yeast2.rle

  Size:4x4 | Rule:23/3

• 

  yeast

  https://conwaylife.com/wiki/Bakery https://www.conwaylife.com/patterns/yeast.rle

  Size:5x5 | Rule:23/3

• 

  ypentomino

  One of the 12 pentominoes.

  Size:4x2 | Rule:23/3 | @lifewiki