Brain Buster: Multiplayer Math Puzzle Game

Fourteen. That's the whole duel, so a match stays short and tense. Every round puts one arithmetic problem on the board, and by question fourteen somebody's brain is celebrating while the other is seeing stars. No long grind, just a quick showdown.

Plain arithmetic: addition, subtraction, multiplication and division. Each round shows a single problem with four possible answers underneath. You don't type anything, you just spot the right number and tap it. Easy to understand, but the clock makes it tricky.

Be right and be first. Tap or click the correct answer before your opponent does and you win the point and land a punch on the other brain. Over the 14 questions, whoever answers more correctly, and faster, takes the duel.

Yes, it's built as a head-to-head duel. You and a rival play as two brains squaring up in an arena with a crowd in the stands. It's made for two players, so bring someone worth beating.

Nope, and that's the point. It's a mental math duel, so everything happens in your head. There's no time for second guesses either, because your opponent is racing you to the same four answer buttons.

It's free and runs right in your browser on desktop, so there's nothing to download or install. Open the page, pick your answers with a click, and start the duel. Developer Silent Dogs made it for quick matches.

It suits anyone who works out the restaurant bill in their head while everyone else hunts for a phone. If you like brain training, competitive games and fast rounds where speed beats everything, this duel is a good fit.

It's played in portrait orientation. You'll see two brains facing off in an arena while a crowd fills the stands. The math problem sits on the board with four answers beneath it, and each correct tap sends a punch flying.