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Matrix Force

A grid of pictures, sorted into groups. Free moves. Everyone lands on the same one.

A grid of pictures is shown. Behind the scenes, every picture belongs to one of a small number of groups. The audience is given a short sequence of free instructions — “move up or down to the nearest square in group one,” “now left or right to the nearest square in group two,” and so on. Nobody is told which direction to go, only what to look for. However people start, everyone finishes on the same square.

Colour is what the logic reads, but it doesn't have to be what anyone sees. A group can just as easily be a theme — robots in one, vegetables in another — since a square's word or emoji is already separate from its colour here. Pick whatever theme you like; the colour underneath keeps track of the groups for you.

Colours

Each square's background colour is what the instructions key off — the picture on it is never part of the logic. Add as many colours as you like. Set a minimum for a colour to make sure “Randomise” scatters it around the grid rather than leaving it sitting on one obvious square.

The grid

Pick a colour below, then click squares to paint them. Click a square's label to edit its word or emoji.

Hover any square any time to see arrows for the path it takes through your instructions, and the same path spelled out below.

Result

Checked automatically, every time the grid or the instructions change — not searched for, walked through and confirmed for every single square.

Instructions

Each line is one instruction, given to the whole room at once. It moves everybody within their own row (left/right) or column (up/down) to the nearest square of the colour named — or, with a fixed direction, keeps going that way until it finds one.