# Shortest path to the middle [closed]

You are in the desert. You are instructed to get to the middle point between to visible marks far from you (meaning you can see them - see the direction to them - but you do not know how far are they from you). Suggest the best strategy that will allow you to determine how to get to the desired location between the two marks (middle) in the dessert as fast as possible - in other words, what is the shortest path you could choose?

## closed as unclear what you're asking by Engineer Toast, Gamow, Deusovi♦Aug 11 '16 at 2:20

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• If we are allowed to do one step to the side, we can use triangulation to figure out how far the points are away, and then go straight to the middle. Instead of restricting what we can determine, how about you reformulate the puzzle to restrict in what ways we are allowed to move? – Anon Aug 7 '16 at 23:28
• Using parallax, we can easily take measurements from two points and then know exactly where the marks are. – Deusovi Aug 7 '16 at 23:29
• This is not the most effective way, since it introduces potential for large error. I will modify it to the "best" strategy. – Moti Aug 8 '16 at 0:14
• @Moti: You never said anything about error. Where does the error come in? – Deusovi Aug 8 '16 at 0:58
• "get to the desired location between the two marks (middle) in the dessert as fast as possible" - If there is dessert there, do we need to worry about triangulation? :P – naffarn Aug 10 '16 at 0:08