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Polyomino glider predecessor?

Posted: February 7th, 2010, 3:32 pm
by Axaj
What's the smallest polyomino glider predecessor?

Re: Polyomino glider predecessor?

Posted: February 7th, 2010, 7:20 pm
by knightlife
This heptomino may be the smallest:

Code: Select all

x = 5, y = 3, rule = B3/S23
4bo$2b3o$3o!
This one is also seven cells:

Code: Select all

x = 4, y = 3, rule = B3/S23
4o$bobo$bo!
The second one has a smaller bounding box.

Re: Polyomino glider predecessor?

Posted: August 7th, 2024, 8:57 am
by Citation needed
There is a third one. If I remember correctly, there are only three such heptominoes.

Code: Select all

x = 5, y = 5, rule = B3/S23
5o$obo!