TheMathCircle@Canisius had our second meeting on Tuesday October 9, from 4pm to 5:30pm. We had 6 enthusiastic participants, and we filled up all the white boards at least once. We discovered some 4 by 4 squares, even though those are harder and were not discussed on the project sheet. We played with repeating the patterns beyond the borders of the original squares, and looked for new patterns there.
Here is a link to the project sheet.
Here is a link to a drawing of our happy group: