Yes even I had a lot of trouble in solving this puzzle, I thought of posting about this once the contest ends.
I couldn't figure out from where to start but I became stubborn about solving this and finally managed to solve :)

Regards,
Ravi

Many thanks for the reference. It was good to have another example so I could get up to speed.

The puzzle mechanic is an interesting change of pace from other puzzle types I've gotten used to.