You start from 1. Throw the stone at 1, it will become red all red tiles are supposed to be skipped. Then move through the whole grid use two leg jump where there are two tiles together and one leg jump where there is only one tile first ascend then descend, once you reach your starting position the number increments, now you have to throw the stone at 2 then do the same thing all over till you throw the stone at 10. I hope this explains 😅