10 Printable Heptomino Duplicate Puzzles

Can you spot the matching heptomino?

This puzzle collection contains 10 visual challenges in which one heptomino appears twice. Study the shapes carefully, compare their outlines, and try to identify the matching pair.

The duplicate may be rotated, so two identical heptominoes can look surprisingly different at first. You can solve the puzzles directly online or print them for later.

10 Interactive Heptomino Duplicate Puzzles

Each puzzle contains several different heptomino shapes, but one shape appears twice.

Click or tap the heptomino you think has a matching partner somewhere else in the puzzle.

The game is interactive, so you receive immediate feedback. If you choose the correct shape, the duplicate pair is revealed. If your selection is wrong, simply continue and try another shape.

How to Find the Duplicate

Focus on the overall outline of each shape rather than the direction it is facing.

A heptomino remains the same shape even when it is rotated. This means the two matching pieces may be positioned very differently and may not look identical at first glance.

Look for characteristic corners, branches, gaps and proportions. When you think you have found the duplicate, select one of the matching shapes to check your answer.

Play Online or Print All 10 Puzzles

You can work through the complete set directly in your browser or print the puzzles and solve them on paper.

Printed versions are useful for longer puzzle sessions, classroom activities, family puzzle time, travel, or simply when you prefer working away from the screen.

With 10 puzzles available in one set, you can solve several challenges in succession without having to load a new page each time.

Reveal the Solution When You Need It

If one of the puzzles becomes too difficult, you can use the solution option to show the duplicate pair.

Try solving each challenge on your own first and use the answer only when you need help or want to confirm your choice.

What Is a Heptomino?

A heptomino is a geometric figure constructed from seven equally sized squares connected edge to edge.

When rotated and reflected versions are treated as the same shape, there are 108 different free heptominoes.

Their large variety and the many different ways they can be rotated make heptominoes especially suitable for visual matching and duplicate-finding challenges.

Improve Your Shape Recognition

Recognizing identical shapes in different orientations requires careful visual comparison.

Some heptominoes are easy to identify because they have a very distinctive outline. Others can be much more difficult, particularly when several similar shapes appear close together.

The more puzzles you solve, the easier it may become to notice characteristic structures and recognize rotated versions more quickly.

There is no time limit, so you can take as long as you need for every challenge.

Try More Heptomino Puzzles

These puzzles are selected from a growing collection of different heptomino patterns.

Work through all 10 challenges, print them for later, or let someone else try the same set and compare your results.

As the collection grows, additional puzzle variations can provide even more ways to explore heptominoes and other polyomino shapes.

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