Gridlock

Drag a car along its lane · Cars only move forwards and backwards · Keyboard: Tab to a car, then the arrow keys

Level: 1
Moves: 0
Fewest: —

Levels · 0/27 solved

The prompt

Make a sliding-block parking puzzle in one HTML file on a 6×6 lot with an exit on the right. Cars are two squares long and trucks three; each only slides along its own lane. Generate thousands of random lots, solve each with breadth-first search, keep the hardest, and order them by the fewest moves needed. Drag to slide, count each slide as one move, undo and restart.

Claude wrote this game from a short brief like this one. It was then played, tested on phones and tuned before it went up here.

How to play

Get the red car out through the exit on the right.
Every vehicle slides only forwards or backwards along its lane.
A slide of any distance counts as one move. "Fewest" is the minimum the level needs.

More like this

Gridlock.