What is nerdDuel?
nerdDuel is a two-player math puzzle game from the nerdleverse. Both players try to solve the same hidden equation at the same time. Each player gets their own grid with independent feedback – the first to solve (or the one who solves in fewer guesses) wins the round.
The guessing rules are the same as nerdle: every guess must be a valid equation, and colour-coded tiles tell you how close you are:
- Green – correct character in the correct position.
- Purple – correct character, wrong position.
- Grey – character not in the solution.
Play against a friend or the bot
You can challenge a friend by sharing a link, or play against the nerdDuel bot if you want to practise solo. The bot provides a consistent challenge – it won’t make careless mistakes, so you need to be both fast and accurate to beat it.
nerdDuel is available to play any time – it’s not limited to one game per day like the daily nerdle puzzles.
Prefer words?
If you’d rather compete with words than numbers, try wordDuel – the same two-player format but with 5-letter words instead of equations. For multiplayer with more than two players, check out Nerdle Cup.