Turing Tumble Community

Puzzle 19 - 23 Parts - No red ball in output

Here below is another solution for Puzzle 19 using 24 parts.
This solution satisfies the additional constraint of having no red ball in the output.

Link: https://www.lodev.org/jstumble/?board=rlerrf1rfrrlf1xfrxlflrfrelflrfrelei

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You’ve got an unused ramp right above the interceptor.

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You are correct, thanks. I will update the picture and the title.
It’s a copy error.

The correct image is:

Hum… This solution is not bad, but it uses only 3 positions for the bits. The red marbles just avoid the bits.
The following might be an improvement as the reds do switch the bottom bit to get the 4th position.
https://www.lodev.org/jstumble/?board=rlerrf1lfrxfe0rfrllflrfrelflrfrelei_18_18