Math Duel — free browser math battle, no install needed 🧮⚡ ~30 seconds per game. Pick a difficulty, smash the CPU’s HP with fast answers. Chain combos → hit 5 in a row → Fever Mode = ×2 score 🔥 Weekly + monthly leaderboards. PWA-installable on iOS & Android.

Framer — Launch websites with enterprise needs at startup speeds.

Launch websites with enterprise needs at startup speeds.

Hey Product Hunt! 👋 I built Math Duel because I wanted a math practice tool that actually felt fun to pick up — not a worksheet, not a quiz app, but something closer to a game. The core loop: answer math questions to deal damage to a CPU opponent. Answer faster → higher score multiplier. Chain correct answers → Combo bonus. Hit 5 in a row → Fever Mode kicks in (×2.0 score for 8 seconds). Most games wrap up in under 30 seconds, so it’s easy to play one round and get hooked into another. There are 4 difficulty levels — Easy covers basic arithmetic, while Extreme throws in arithmetic sequences and Gaussian sums. Weekly and monthly leaderboards reset regularly so there’s always a fresh chance to climb, and the all-time history board tracks every past period permanently. It runs entirely in the browser — no install, no account required to play. PWA-installable on iOS and Android if you want it on your home screen. Would love to hear: which difficulty felt most satisfying to you? And if anything felt confusing or off, I’m all ears. Thanks for checking it out! 🙏

Math Duel has weekly and monthly leaderboards

and you can filter by difficulty.

Tap Easy / Normal / Hard / Extreme to see

who ranks where. Or hit "All" to watch the

Math Duel has weekly and monthly leaderboards

and you can filter by difficulty.

Tap Easy / Normal / Hard / Extreme to see

who ranks where. Or hit "All" to watch the

Framer — Launch websites with enterprise needs at startup speeds.

Launch websites with enterprise needs at startup speeds.

Math Duel

Do the math. Win the battle.

Do the math. Win the battle.

Forum Threads

Math Duel has weekly and monthly leaderboards

Forum Threads

Math Duel has weekly and monthly leaderboards