Just click the flag. If you want it to go faster, press shift while clicking the flag.
Langton's ant was made by Chris Langton in 1986. Starting with a white square grid, it infinitely repeats these orders: (I made it only repeat them 10700 times) If (on white square) { turn 90 degrees clockwise } else { turn 90 degrees counterclockwise } flip colour of the square move one square forward Changelog : 27-1-2024: Halved block count from 64 to 32