Guild Wars 2

Could anyone give me a hit how to do this?

I tried doing the puzzle but daily doesn’t complete.
As a matter of fact, tried doing it multiple times to no avail.
http://i.imgur.com/RLQE6vO.jpg ss as proof from just a few minutes ago.

you have to open the chest to get credit for doing the jumping puzzle
the chest is in the middle of your screenshot, where Nagheter [Rus] is (I think that’s what his name is)

Oh wow, that doesn’t make any sense xD
All those times I didn’t pick up loot or Achievement.
Alright, I’ll try it if and when I next time do it.

Ouch! xD

How many times did you do it without opening the chest?

why would you not open the chest?