I don't know how to rate this... I gave it a go and followed the hints and I won. Hidden mechanism did the rest for me but I have no idea what it actually did.
I was confused by the hints(?) and have a feeling I didn't win the intended way... Spoiler I just made a seven and pulled and won.
@ohmytian @cimarronline Yeah i didn't ha had munch idea for the hints. I thought this mechanism that i built was cool but i ran out of ideas for integrating it in a playable level. If you have any idea i am open to suggestion to improve it.
If you mostly want to share a mechanism, you could post it here (and open it up so the mechanism can be seen): Sharing new (and old) mechanisms