Many of the Pokemon playtest cards were likely printed in 2024

[mika]

Thanks, done!

Yellow Dot Decoder - Fake Prototype Playtest Cards

You may have seen @pfm discovery regarding prototype cards, I recommend you read his post which explains the situation very well. So I decided to write a program to convert your pattern of yellow dots (which are in fact metadatas dropped during printing) into a readable format such as the print date, for example. To clarify, this won’t work on all cards, as it depends on the quality of the scan, the printer in question and also the quality of the prototype card, so this tool is only useful if …