How to play Logic Grid
Use clues and a grid of ticks and crosses to work out which person has which item in every category. Also known as Who owns what.
The rules
- Each person has exactly one item from each category.
- No two people have the same item.
- Every clue is true, and together they lead to one answer.
- Mark the grid with crosses (ruled out) and ticks (certain).
Playing Logic Grid on Puzzle Solvers
- Choose a level and press New Puzzle. The clues are listed under the grid.
- Each row is a person; each block of columns is a category, such as pets or drinks.
- Tap a square to cycle it: cross (not this), tick (this one), blank. A tick crosses out the rest of its row and column for you (you can turn that off).
- Find one tick per person in every block. Hint quotes the clue that gives the next tick or cross.
A worked example
Clue: “Chloe owns the rabbit.” Tick Chloe’s rabbit square, and cross the rest of Chloe’s pets and everyone else’s rabbit.
Clue: “The rabbit owner drinks juice.” Chloe owns the rabbit, so Chloe drinks juice — tick it.
Strategies
- Easy clues first. Clues about one person — “Ava doesn’t drink milk” — go straight into the grid.
- Tick → cross the rest. A tick in a block means the rest of that row and column are crosses.
- Last blank is a tick. If a row or column in a block has only one square left, it is the tick.
- Linking clues work both ways. “The cat owner drinks tea”: whoever has the cat has tea, and whoever has tea has the cat. Anyone who can’t have tea can’t have the cat.
- Either/or clues. “Ben either owns the dog or wears red, but not both”: if one is false, the other is true.
Common mistakes
- Forgetting that a linking clue also tells you who doesn’t have something.
- Putting a tick without checking every clue.
Where it comes from
Grid logic puzzles have been a favourite in puzzle magazines for decades; the famous “Zebra puzzle” is a big one of this kind. These are generated for this site with clues that are all needed.
Frequently asked questions
Do I have to use the grid?
Yes — the puzzle is solved when every person has the right tick in each block.
Are any clues unnecessary?
No — extra clues are removed, so every clue is needed.
Is there always one answer?
Yes — the clues are checked so that logic alone gives exactly one answer.
Keep going
- Play Logic Grida fresh puzzle every time
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All guides: How to play every puzzle and game.