Concentration Cache Builder

Make your own memory matching geocache with a sharable play link.

Concentration is a memory game. A grid of face-down tiles hides pairs of geocaching icons. Players flip two at a time to find the matches, and clearing the whole board reveals your final coordinates or keyword. The layout of the board stays on the server and is dealt fresh for every player, so nothing is hidden in the page for someone to peek at. You can add a mistakes limit and a time limit to make it a real challenge.

Anything you create here is public to anyone with the link, and you are responsible for what you publish. Keep a copy of your edit key, it is the only way to change or delete your puzzle later.

Your puzzle

Title

Geocache code (optional)

Shown to players as a link to your cache page.

Your email (optional)

Only the site admin can see this, in case they need to reach you about your cache. Never shown to players.

Board size

How many matching pairs are on the board. More pairs means a bigger, harder board.

Time limit

None Easy Medium Hard

No time limit. Players can take as long as they like.

Limit mistakes
End the game after too many wrong pairs, so players cannot simply flip every tile to learn the board. Leave off for a relaxed, no-pressure cache.

Hint (optional)

Intro message (optional)

On solve, reveal

Shown only after a player clears the board. Reveal either the final coordinates or a keyword, not both.

Coordinates Keyword

Final coordinates

Message (optional)

Image URL (optional)

Where can I host an image for free?

Paste a direct https:// link to an image. Free image hosts that give a direct link include ImgBB, postimages.org, and Cloudinary. A geocaching.com image link works too. The link must start with https://.

I understand this puzzle is public, contains nothing sensitive or inappropriate, and I am responsible for its content. I also understand that caches which sit unused are removed automatically: one that is never played is deleted 30 days after it is created, and one with no plays for a full year may be deleted.

Keep your cache in play to keep it live. Share the play link so people visit it; unused caches are cleaned up over time.

Live preview

My Concentration cache