A level
how it works
Push every rock onto a button and walk Alice to the door. A rock slides one cell when walked into, one at a time, never into a wall; a gate in a wall opens while Alice stands on its lever. An untimed room has no clock and forgives everything: B takes a move back, START starts over, and the status line warns when a rock is stuck in a corner. A timed room waits for your first press, then runs on a clock: every tick the cast walks one cell along its loop whether you move or not, Y waits a tick, the red cells are what a watcher sees, and being seen or walked into ends the run - START restarts it. On a local checkout the arrow keys or WASD, Backspace, space and R work too; the published site plays from the badge alone. Solve runs a real search over the room and plays back what it finds - it is not a recorded answer, and it earns no prize. New here? Learn walks the stages one press at a time. Levels lists every room and what you have won.
✚moveBundoYwait a tickSTARTreset
Levels
how it works
Every level the page plays. The two stages come first; then the rooms the community made with the level maker and sent in - every one proved solvable before it shipped - and a room someone shared with you in a link, if you came here by one. Pick a card and the level opens above, with its facts: its rules, its size, what is in it, the par once the solver has worked it out, and your best. What you win is remembered on this device, and the prizes below say what else there is to do. Share on a level makes a link that plays it here or opens it in the level maker, for someone else to carry on.
Prizes
Won by playing. The solver's answer earns nothing; the badge in your hands does.
A Caucus Race
A guided first visit to the rooms. Each step watches what you do and ticks itself off; the line at the top of the page says what comes next wherever you are. Chapter one is the tea party, chapter two the gauntlet, chapter three a room the community made — skip what you like, it costs nothing.
How to play
Rooms, one controller. Push every rock onto a button and walk Alice to the door. An untimed room has no clock and forgives everything: B takes a move back, START starts over. A timed room runs on a clock from your first press, the cast walks whether you do or not, and the Queen's gaze ends the run. Levels lists every room - the two stages, the community's, made with the level maker and played by the same rules - with what you have won in each and the prizes still to win. New here? Learn walks the stages one press at a time and says why.
The glitch range
Five practice ranges, on their own page, built for the badge's quick glitch layer: a combo the Rabbit chimes faster than a hand can follow, the Queen's guard running a routine whose one check has to be skipped with a pulse on X that lands inside a 20 ms window, the Caterpillar's door, which gives its password away by how long it takes to say no, the Dormouse's watchdog, which wants every nudge inside its window, and Humpty Dumpty's wall, which falls to a name one symbol too long. Record a take on the badge, speed it up, dial in the offset, fire — and read the measurements off the log.
The firmware that does the recording goes onto the badge from the flash page: put the badge in its bootloader and a Chromium browser writes the image over WebUSB, no tools to install.
The badge is the key: the vault page reads the stage key a badge carries and writes one at the booth. On the published site the stages play from the badge alone.
Themes and looks
What the site is painted in — the conference's lime on black, the Queen's court, the tea
party in daylight — and how it sits on the screen: the classic page, or a phone look that shows one
panel at a time. The ◐ chip in the header opens the picker; ?theme=queen and
?look=scope in the address bar pick too, and the choice is remembered on this device.