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thotteu.com/mnemosine
DECODE THE SIGNAL — MATCH EVERY LETTER
INSTRUCTIONS
Click two tiles to reveal the letters underneath.
Match each UPPERCASE letter with its lowercase twin (e.g. A ↔ a).
Matched pairs stay revealed — wrong pairs flip back.
You have 50 attempts to clear all 15 pairs.
Fewer attempts and less time mean a better score.
SELECT DIFFICULTY: