[roadblocks](http://www.freeaddictinggames.com/?id=340&req=givegame ) is pretty fun, but trying to [build a solver](http://code.iamcal.com/pl/games/roadblocks-solver_pl.txt) is more fun. patches to support one ways and teleporters are welcomed (you'd need to extend the find_stop_*) functions to return an x,y pair for the teleporters. one ways are easy - just add to the blocks list for each direction). :)