What is Einstein's Riddle (Zebra Puzzle)?

A classic logic grid puzzle where you use clues to deduce one-to-one matches between categories.

Is this free to play?

Yes. Play a new daily logic grid puzzle in your browser—no signup required.

Read each clue, mark ✓ for matches and ✗ for impossibilities, and use deduction to complete the grid.

Griddle

A daily logic puzzle

How to Play Griddle

The Goal

Each item has exactly 1 match in each other category. Use the facts to find them all!

TIP: Start with an easy puzzle to get the hang of it.

The Grid

Tap a cell to cycle through its state:

✓ = It's a match!

✗ = It's not a match.

(blank) = Unknown.

Fact Guide

Direct Match: 🛻 is ⚽️

These items are a definite pair.

No Match: 🛻 is not ⚽️

These items are not a pair.

Either/Or: 🛻 is either 🧑‍🍳 or 🍋

The first item matches exactly one of the options.

Neither/Nor: 🛻 is not 🧑‍🍳 or 🍋

The first item matches neither of the options.

Group Match: Of 🛻 and 🧑‍🍳, one is ⚽️ and the other is 🏈

Each of the two on the left match to (at least) one of the two on the right, but its not clear which.

If and Only If: 🧑‍🍳 is 🛻 if and only if 🧑‍🍳 is ⚽️

Either both parts of the clue are true, or both are false.

Using The Facts

Let’s check out some sample facts:

The Farmer has a pet Rabbit.
The Rabbit is associated with either the Banjo or the Saxophone.
The Farmer and the Astronaut are grouped with the Dog and the Saxophone.

Now make deductions:

Place a ✓ at Farmer–Rabbit.
Since the Rabbit is either Banjo or Saxophone, mark ✗ on Rabbit–all other instruments.
By the same either/or, the Farmer must play either Banjo or Saxophone; mark ✗ on Farmer–all other instruments.
From the group fact, Farmer and Astronaut pair one-to-one with Dog and Saxophone. The Farmer doesn’t have the Dog, so he must be the Saxophone.
Therefore, the Astronaut has the Dog.

Helpful Tools

🔒

Locking: Tap the lock icon on a ✓ to automatically fill its row and column with ✗ marks.

↔️

Views: Toggle between Full and Simple modes. Simple offers a streamlined, single-column view suited for mobile.

↩️

Undo: Made a mistake? Use the undo button or Ctrl+Z.

Griddle is based on the well-known Zebra Puzzle, also known as Einstein's Riddle.

Griddle Solved!