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by mariehaynes 3429 days ago
This has been bugging me for days...trying to figure out how you knew to go down, right, left, etc. I finally figured it out.

Start at the end. That's a 9. The only way that we could have landed on that 9 is either moving down or right. So, look at each number on that path and see which one would have got us there. There is an 8 that is 8 squares above 9, so that's the second last number. Now, how did we land on the 8? There is a 1 that is one square to the left, so the next number is 1. And so on.