Version: 1.9.4 - 1.12 (vanilla and/or spigot/bukkit/paper server)

How can I push the headless piston in the below picture against the wall?

Prohibited blocks/items:

Hopper, all special minecart, elytra, activator/detector rail, written books, Armor stand, end rod, daylight sensor, depth strider, frost walker, Shield, No animals (only creeper egg and Skeleton/pig spawner), dispenser, dragon egg, slime block, chorus plant/flower, end crystal

The headless piston + obsidian wall

  • It is impossible to make a flying machine to push this without observers or slime blocks (pretty sure)
    – DialFrost
    Jun 2 at 23:59
  • I want a flying machine, slimeless and observers_less.
    – potekil
    Jun 7 at 10:12
  • Thats pretty impossible unfortunately :(
    – DialFrost
    Jun 7 at 10:33
  • Can you give me your Discord ? i want to show you something in my server.
    – potekil
    Jun 16 at 17:48

1 Answer 1


Try placing a piston horizontally, then 2 observers placed horizontally in front of it (One block gap between piston and first observer). Next place another piston horizontally on the observer. Then leave a 1 block space, then place 3 more observers horizontally. Activate the first piston you placed orginally, and it should push the headless piston without activating it!




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