KoanKeyLogic puzzles
Reason your way to the one answer that fits every fact. No guessing, no trivia, no sign-up.
Play a logic puzzle today
Zebra Puzzle
Work out who lives where.
A row of houses, a handful of facts, one solution. Six levels every day, from a quick 4 by 4 up to a 6 by 7 brain-burner.
More puzzle types will join this list as they are ready. Each one will get its own page, with a new puzzle every day.
What is a logic puzzle?
A logic puzzle gives you a few statements that are all true, and asks you to work out what they add up to. You never need outside knowledge. Everything you need is on the page, and the puzzle is built so that only one answer survives every statement.
That is what makes them satisfying. When you place a piece, you know it is right, because the alternatives have already been ruled out. Getting stuck is part of the process: usually one more careful look at the facts opens a new move.
Six levels, one idea
Every Zebra puzzle set comes in six sizes. Smaller grids have fewer facts and simpler steps. Bigger ones add more houses, more categories and more kinds of fact.
| Level | Grid | Typical number of facts |
|---|---|---|
| Very easy | 4 houses × 4 categories | 9 to 12 |
| Easy | 4 houses × 5 categories | 11 to 14 |
| Medium | 5 houses × 5 categories | 14 to 18 |
| Hard | 5 houses × 6 categories | 17 to 22 |
| Very hard | 5 houses × 7 categories | 20 to 26 |
| Ultra hard | 6 houses × 7 categories | 24 to 30 |
Missed a day?
Every day since launch is saved. Browse the Zebra puzzle archive, which currently holds 7 days of puzzles, all free to play.