PeterH:
holmes4:
Try it it always works.Unless you're trying to solve a maze where that algorithm doesn't work, or where you're trying to find an optimal solution rather than just a solution.
You don't always need a compass to solve a maze, but there are some situations where it's a useful thing to have.
Well the always turn left or always turn right method does prevent one from 'doubling back on oneself' and therefore getting into hopeless endless loops. But certainly it is a most inefficient algorithm to use and will never win any competitive events unless all the others happen to have mechanical breakdowns. 