Matrix Mind

Fifteen picture puzzles: find the tile that completes every row of the grid

• Single player
• puzzle
• numbers
• iq

Prefer it full screen? Open Matrix Mind on its own.

About Matrix Mind

Each puzzle is a three-by-three grid of tiles with the last one missing. Something changes across every row: the number of shapes, their size, their rotation, how filled in they are, or which shapes appear. Work out the rule and pick the missing tile from eight options. It is built on the same kind of puzzle used in matrix reasoning tests, and the puzzles get harder when you get them right and easier when you miss.

What is different about this version

Every wrong option breaks the rule in a different way, so you cannot find the answer by picking the option that looks most like the others. Puzzles adapt to you as you play, and there is no time limit on any single puzzle.

How to play Matrix Mind

1. Look along each row and work out what changes from left to right.
2. Check the rule works for all three rows, not just one.
3. Pick the tile that completes the bottom row from the eight options.
4. After each answer the rule is shown row by row.
5. After fifteen puzzles you get a score and a pattern estimate.

Controls

Desktop	Click an option or press 1 to 8, or move with the arrow keys and press Enter. Escape pauses.
Phone or tablet	Tap an option to answer, then tap to continue.
Players	One player. Any other characters on screen are run by the game.

Strategy

Check one feature at a time: count first, then size, then fill, then rotation. Once one feature is settled, cross off every option that gets it wrong and move to the next.

Mistakes that cost you the game

• Solving the top row only and assuming the rest follow.
• Rushing: there is no timer on a puzzle, only a clock for your total.

Tips

• Some rows add or overlay the first two tiles to make the third.
• If each row has three different shapes, the missing tile has the one the bottom row is missing.

Questions about Matrix Mind

Is the estimate a real IQ score?

No. It is a rough estimate for fun, based on how far the puzzles climbed, not a clinical test.

Does it cost anything?

No. Matrix Mind is free to play, runs in your browser, and needs no download, install or account.

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• Fold LabFold nets into cubes and punch folded paper, all in your head

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