Outsmart your opponents, one question at a time.
1v1 knowledge duel across science, history, geography and more. No login, no install — tap to play.
Pick a game
Two ways to train your memory — one against an opponent, one against yourself and the clock.
Head-to-head quizzes across science, history and geography. Race a friend or an AI opponent, 15 seconds per question.
Play now →Three fresh memory levels every day — number recall, sequence memory and colour recall. Same puzzle for everyone, streak built daily.
See all modes →Memorise the tile sequence, then tap it back. Same sequence for both players, server-scored — send a room code and compare.
See all modes →Digits flash one by one — type the whole string back. Same number for both players, server-scored, no login.
See all modes →Five colours appear, then vanish — rebuild each one on the wheel. Same colours for both players, closest match wins.
See all modes →A row of symbols flashes, then one is missing. Your opponent gets the exact same set — pick the ghost correctly.
See all modes →Numbers flash on the grid, then vanish. Your opponent gets the exact same grid — tap every cell that held a number.
See all modes →Words appear one by one. Your opponent gets the exact same words — mark each as seen or new.
See all modes →Choose your battle
Why MemoryDuel
Timed quizzes
15s pressure makes every round sharp.
6 languages
Play in your language, anywhere.
AI sparring
Always-ready opponent, any time.
Leaderboards
Weekly reset, badges for top 10%.
New here? Three steps.
Pick a category
Science, history, movies — choose what you know best.
Start a duel
Face the AI, match a random player, or share a room code with a friend.
Answer first to win
Beat the clock and your rival. Climb the ladder, earn badges.