Interactive Hexomino Duplicate Game

Can you find the matching hexomino pair? In this interactive puzzle, one of the hexomino shapes is hidden in the pattern twice. Take a close look at all the pieces and select the shape you believe has a duplicate.

When you choose the correct shape, both matching hexominoes are highlighted so you can immediately see the pair. If you pick the wrong one, no problem – simply choose another shape and keep searching.

Find the Duplicate Hexomino

Click or tap the hexomino shape that appears twice in the puzzle. The game responds instantly to your selection, so you can continue trying until you discover the correct matching pair.

Ready for the next puzzle? Click the New Puzzle button above to generate another randomly selected pattern. You can also reload the page in your browser whenever you want to start with a different puzzle.

How the Game Works

Every puzzle contains a collection of different hexomino shapes. Only one shape occurs twice.

The two matching hexominoes do not necessarily have the same orientation. One or both shapes may be rotated, which can make the duplicate much harder to recognize at first.

Compare the outlines carefully and select the hexomino that you think appears somewhere else in the pattern.

A correct choice reveals both matching shapes. If your selection is incorrect, you can continue searching immediately and try another one.

How Many Puzzles Can You Solve?

There is currently no time limit, allowing you to examine every puzzle at your own pace. Try solving several patterns one after another and see how quickly you become familiar with the different hexomino shapes.

Each puzzle also has its own number. This makes it easier to identify a specific challenge, share it with someone else, or compare puzzles with other players.

What Is a Hexomino?

A hexomino is a geometric figure constructed from six equally sized squares joined together along their edges.

There are 35 different free hexominoes when rotated and reflected versions are treated as the same shape.

Because the appearance of a hexomino can change considerably when it is rotated, these shapes are especially well suited for visual recognition games and duplicate-finding puzzles.

Discover More Hexomino Puzzles

The game chooses its puzzles from a growing library containing thousands of different hexomino patterns. Whenever you want a new challenge, simply press New Puzzle or reload the page.

Additional interactive game modes are also planned, including timed challenges and other variations designed to test how quickly you can recognize and match the different shapes.

Watch Hexomino Simulations on YouTube

If you enjoy these hexomino patterns, you may also want to visit the C4D4U YouTube channel. There you can find animated simulations that use the same type of hexomino arrangements and turn them into visual physics and animation experiments.

The interactive puzzles let you search for the duplicate yourself, while the videos show the patterns brought to life through animation and simulation.

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