
Math Duel
Do the math. Win the battle.
What it does
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.
Does a similar job
all alternatives →- IMI made a web game that makes practicing basic arithmetic fun2024 · worchle.com · ▲161
Hey, maker here. After launching a daily word search game, I randomly thought of this math game while driving. Finally got around to making it and I think it turned out pretty cool. It’s a math search game that’s meant to help you practice your quick addition, subtraction, multiplication, and division skills. I’m hoping it’ll help people (even those like me who aren’t big on math) learn and increase their speeds. (There are also some settings you can enable to make the game harder) If you try it out, please let me know if you found it fun, if you have anything you’d like me to add, or if you…
- IMI made an interactive math crossword puzzle with infinite levels2024 · scientific.place · ▲165
Hey there! I'm the brains behind the math crossword game on my site. This game is all about making math a little more fun – users just drag and drop numbers to fill in the blanks and move on to the next level if they get it right. Let me know if face any issues or have any suggestions! :)
Number DuelJun 2026 · numberduel.mathmindpuzzles.com · ▲1A free math strategy game: pick numbers, claim cells, win



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Launched alongside, May 2026
the whole month →

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Hey HN, Henry here from Cactus. We open-sourced Needle, a 26M parameter function-calling (tool use) model. It runs at 6000 tok/s prefill and 1200 tok/s decode on consumer devices. We were always frustrated by the little effort made towards building agentic models that run on budget phones, so we conducted investigations that led to an observation: agentic experiences are built upon tool calling, and massive models are overkill for it. Tool calling is fundamentally retrieval-and-assembly (match query to tool name, extract argument values, emit JSON), not reasoning. Cross-attention…
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