Minecraft 2×3 flush block swap – no observer blocks

minecraft-java-editionminecraft-redstone

I need help with building a 2×3 block swap without using observers or comparators, in java edition (1.15.2).

1×1 floor swap (functional)
example I found online

1×1 wall swap (functional)
another example I found online

I need to build this on a server that has no access to nether quartz (so no observer block and no comparator), but repeaters, slime blocks, honey blocks are okay. Any help would be appreciated, I've never been good with redstone devices, and this seems like a complicated task, even if I was good with redstone. Maybe I'm overthinking it?

Update: a bit of progress with this tutorial

(images below), even though this is an old tutorial, it is functional on java edition version 1.15.2.

Test 1 from tutorial (functional)
test 1 top view
test 1 back view

Test 2 from tutorial (functional)
test 2 top
test 2 back view

These blocks being swapped are not beside each other though

Best Answer

Yep, it’s really this easy: (see pic)enter image description here