// 04 / Play / lockpick

Lockpicking.

A pin-tumbler lock you pick by feel. Set the tension, find the binding pin, lift until it clicks. Don't push too far.

3 pins 0.0s
shear line123

// pick a pin and lift

← → pick a pin · hold ↑ / space to lift · A / D tension · mouse: hover + hold, wheel for tension · touch: hold a pin

// How it works

Inside a pin tumbler.

  • Each chamber holds a key pin (cyan) and a driver pin (orange), pushed down by a spring. The lock opens when every gap between them sits exactly on the shear line.
  • Light tension makes the plug turn a hair. Because no lock is machined perfectly, one pin catches first — the binding pin.
  • Lift the binding pin to the shear line and its driver catches on the ledge with a click. The next pin starts binding.
  • Push a set pin further and its key pin jams above the shear line — an overset. Release tension and start over.
  • Spool pins are shaped like a cotton reel. They fake a set and turn the plug backwards; ease off the tension to let them pass.
// Fair play

Only pick what you own.

  • Locksport is a legitimate hobby — and a great way to understand why physical security matters as much as digital.
  • The usual rules: only pick locks you own or have explicit permission to pick, and never a lock that's in use.
  • Real locks feel different from this simulation, but the order of operations is the same: tension, find the binder, set, repeat.