Dan Boger caught something I missed: The return path from the other way has to exist and be marked too if two robots are going to run head to head... Calum (21 years ago, 26-Aug-03, to lugnet.org.ca.rtltoronto)
(...) Or, mark each path to the midway point, then the 'bot needs to figure out the rest of the path based on the path it took to the middle... Could a 'bot leave pieces behind as some sort of trap/misdirection for the opponent 'bot? JohnG, GMLTC (...) (21 years ago, 26-Aug-03, to lugnet.org.ca.rtltoronto)