Knockers

Unbelievable. The ending is awesome, a gratifying surprise. Thank you.

Wow!Yes sir,yes...Excellent puzzle only using the behavior of R bots...At first I was really confusing,but step by step all the elements fit and was really satisfactory to solve it...especial mention ,as @Ítalo to the ending:great!! Thanks for sharing @gmacpro

@Ítalo - I'm so glad that someone won this level as I had great fun making it. Thanks for P, C and R.

@delator77 - Yes Sir back at ya. Those Rs can do lots and when the route is changed with mechanisms, the level becomes very obscure but as you said, step by step, it will (should) unfold. Thanks for P, C and R.

A level of subtle height difference importance. I didn’t see the clever use of P in the caption and didn’t think i could get a bot up there. I had lots of differences.

Spoiler: My way

Used P as the pile driver and having R and Z on the far side i got R on top of Z on the horizontal draggable and slid towards the winblock and R transferred over then went right then left to get the win(this didn’t work with R on P earlier) The clever part getting R on Z took place after pushing the tall budgeable in and R went over down the steps partway then turned right onto the held Z.

@ridgerunner - Definitely, lots of differences in your method but a win is a win. Good show and thanks for sharing your method.

Great level. It all worked out nicely once I saw how to get a bot back after pushing a block in track.

Made a video of the fnish of my alternative win

Spoiler: Alternative

@Block builder - Thanks so much for commenting and rating. Glad it gave you a little challenge.

@ridgerunner - Very nice indeed. The alternative name would be Slow and Steady.... Thanks