VEX VR challenges - tiny programs

[mtaylor]

For the different VEX VR challenges, what are the smallest working programs you can make? Size is measured by number of blocks required to run.
For example, the program shown below for Disk Mover is 15 blocks:

I’m Looking Forward to finding out just how efficient the programmers here can be. Please show a screenshot of your work!

[holbrook]

Ooh, this sounds like fun!

Here’s a maze solver in 7 blocks (using the classic wall-following technique):

[Mr.G]

Dynamic Castle crasher using 23 blocks. First post! WOOT!

[blake1]

Dynamic Castle crasher using 16 blocks