Logic Grid

00:00
Clues
  1. Alice's favorite color is red.
  2. The person who likes blue has a dog.
  3. Carol does not have a cat.
  4. The person who likes green has a fish.
  5. Bob does not have a fish.
Person
Alice
Bob
Carol
Color
Red
Blue
Green
Pet
Cat
Dog
Fish

How to Play

Match items across categories using the clues.

👆

Click a cell once to mark a match (✓). Click again for an elimination (✗). Click once more to clear.

When you place a ✓, the grid auto-eliminates the rest of that row and column and propagates matches across sub-grids.

📋

Read all clues before marking. Some are direct ("Alice = Red"), others are conditional ("The tea drinker plays soccer").

🔗

Cross-reference: if Alice = Red and Red = Cat, then Alice = Cat. Chain facts across grids.

🏆

Fill every sub-grid correctly to win. Use hints if you're stuck (up to 3).

Keyboard shortcuts
Undo
Ctrl+Z
Redo
Ctrl+Y

Reveal Solution?

This will show the complete solution. The puzzle will be marked as "solved with reveal" rather than self-solved.

About easy logic grids

Three categories, three items each, and five clues. The grid is a small triangle of sub-grids — just three — and most clues give you direct assignments or direct eliminations. You can usually solve these in a single pass through the clue list.

The point of easy puzzles is to learn the mechanics. Click a cell to mark it as a match, click again for an elimination, click once more to clear. Watch how marking a match auto-eliminates the rest of that row and column. Get a feel for how information flows through the grid before you need to think about it strategically.

With only 9 cells per sub-grid and 27 total, you can track everything visually. No need for mental bookkeeping. Once you can consistently solve easy puzzles without hints, move to medium — the jump to 4 categories changes the game more than you'd expect.