We started the game without any rules. Each round one player had to define a new rule.
Poster 1
We started with an empty sheet and the idea to create the rules as we went along. The following rules are in order of creation:
Poster 2
We played in turns, clockwise. Each player used only one color pen. Each turn a player would first draw a line on the paper. Then, (s)he would give the next player an aditional drawing instruction.At some point we figured there were enough instructions so we stopped adding more.
During the process we came up with the following instructions for each player:
Jonathan must draw a red line, attached to a blue line, under an angle of 30 degrees from the blue line, shorter than the blue line.
Edo must draw a black line, under an angle precisely between the red line just drawn by Jonathan and the blue line which Jonathan's red line was attached to.
Roel must draw a blue line that crosses the black line just drawn by Edo under an angle of 90 degrees. His blue line's length must be between the length of Edo's black line and Jonathan's red line.
Luna must draw a green line that connects the ends of a red and a black line.
None of the lines may cross other lines, unless explicitly stated otherwise.