✦ SIGNAL LAB ✦

Free brain games & Korean fortune — no sign-up, just play

⚡ Reaction Time Test

3 rounds — simple, choice, and moving-target reaction. Human average is 273ms. Beat it?

🧠 Memory Test

Light sequences and chimp-style number memory. Are you a goldfish or an elephant?

🧮 Mental Math Sprint

60 seconds, problems get harder as you score. Can you reach Human Calculator?

🔮 K-Saju — Korean Four Pillars Reading

The 1,000-year-old Korean fortune system behind K-drama destiny talk. Your birth date and hour, decoded.

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한국어 · 日本語