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Photograph of the front and back of the encoding card.


Your encoding card will be printed on a standard sized plastic ID badge and fit wherever you carry credit cards so you‘ll always have a quick reference ready to go when puzzling. It features all of the encodings commonly seen in puzzle events.

Get one now for only $15! And add additional cards to your order for only $10 per card.

Buy for $15 Powered by Stripe

I don‘t want to buy direct. Where else can I buy one?

You can also buy our encoding cards on Etsy.

Can I cancel my purchase?

Sure, to cancel your small order contact us before it ships for a full refund.

To cancel large orders you must contact us before production begins. The refunded amount will exclude Stripe‘s payment processing fee of approximately 3%.

Something is wrong with my card, what should I do?

Please contact us so we can make it right.

I‘m not happy with my card, what should I do?

☹️ For small orders if you ship it back to us at your expense within a week of delivery we will refund it when we receive it. Please contact us to let us know it is coming.

Large orders are not refundable.

Can you customize the card design for me?

Maybe! Contact us to talk about what customization and quantity you are interested in.

Can you ship outside of the United States?

No. Figuring out the rules for import/export and data privacy in other jurisdictions is complicated and it isn‘t clear there would be enough interest to justify it. If you want to buy 100, contact us and maybe we can figure it out.

Do you charge sales tax?

We charge sales tax if shipping to an address in Washington state.

Do you charge for shipping?

Shipping to anywhere in the United States is already included in the listed price.