How to play Logic Grid
- Each person has exactly one item in each category, and no two people share the same item.
- Read the clues and mark the grids: tap a square once for ✗ (impossible), twice for ✓ (certain).
- A ✓ automatically crosses out the rest of its row and column.
- Fill every row with one ✓ per category to solve the puzzle. Check shows any wrong marks.
Tips
- Start with the direct clues: “Max eats the mango” gives you a ✓ straight away.
- Negative clues are worth a ✗ each: mark them all before thinking further.
- When a row or column has only one empty square left, it must be the ✓.
- Link clues connect two grids: “The fan of red eats the pear” means whoever loves red also has the pear.
- Solving without Check earns more points.
- Tap a clue once you have used it to cross it out. Undo takes back your last mark, along with the crosses it added.
About Logic Grid
Logic grid puzzles, sometimes called Einstein puzzles, have been a favorite of puzzle magazines for decades. Everything you need is in the clues: no guessing, only careful deduction.
Each puzzle here is generated on the spot: a random solution is drawn, clues are added until a solver proves there is only one answer, then every clue you could do without is removed. Four levels go from 3 people and one category to 5 people and two categories.
Points and badges
Finishing a game of Logic Grid earns points for your level. Four badges are waiting in this game, from bronze to diamond: each one says what to do and adds bonus points.
Questions
Is there always a single answer?
Yes. A solver checks every puzzle, and clues are added until only one answer remains.
Do I need to guess?
Never. Every puzzle can be solved by pure deduction from the clues.
Does Check cost points?
A little: each check lowers the points of the game, so try to solve it on your own first.