Minecraft redstone walls?

I'm talking about Minecraft Redstone hope there are a few or two who are very familiar with redstone since I started minecraft again after a long time and am currently working on redstone and I would like to build a player trap where the wall approaches and the player just overwhelmed unfortunately I can't get it all right can someone help me?

just try me bissle I have now used honey and slime to be able to move them all at the same time, but I still have problems with the timing and redstone laying of the 6 pistons so that they go forward and take the wall back again

I think it will be much easier if you build a couple of synchronized flying machines for it. This means you don't have to worry about timing as much.

Of course it is possible.

Your approach to using a six-fold piston extender is the mistake. They are very difficult to build.

Do the whole thing (i.e. This indenting wall with the help of slime and honeyblocks) from both sides, but then only with a triple-piston extender.