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2️⃣ Letter 2-Back Lite — Same Letter Two Back?

Letters appear one by one. Tap when the letter matches the one two trials ago. Original letter n-back — not dual n-back, not a training clinic, and not an IQ. Pratique — pas un QI clinique.

IQ Test › Tests et jeux cérébraux › Letter 2-Back Lite — Same Letter Two Back?
Tap MATCH (or Space) if it matches two-back. Otherwise wait. About 24 letters after a short warm-up.
Comment ça marche

Tap MATCH (or Space) if it matches two-back. Otherwise wait. About 24 letters after a short warm-up. N-back tasks in papers specify n, timing and scoring. This letter-2-back original is not a working-memory IQ. Pratique — pas un QI clinique.

🔁 Test N-back (mise à jour de la mémoire de travail)2️⃣ Visual 2-Back Lite — Letter Identity🧩 Dual n-back lite — lettre + position🔠 Empan de lettres lite — endroit A–Z

❓ FAQ

Same as n-back or visual 2-back?Those URLs exist. This page is letters, n=2, original list. Pratique — pas un QI clinique.
Does training this raise IQ?Near transfer to this toy is expected. Far transfer to IQ is not a claim we make. Pratique — pas un QI clinique.
Is Space required?Click also works. Input method is another reason scores are not clinical. Pratique — pas un QI clinique.
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📅 Dernière mise à jour: 2026-08-27 · ✔ Vérifié par l'équipe éditoriale d'All-Lifes · À propos · Méthodologie
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