Number Duel
Contact
For product feedback, bug reports, partnership ideas, classroom use, or privacy questions, email mars.love.free@gmail.com.
When reporting a bug, please include the game mode, browser, device, approximate time, and whether the issue happened in a bot match, daily challenge, or friend room.
What to Include
For gameplay issues, include the page URL, the game mode, the browser and device, and a short description of what happened. Screenshots or screen recordings are helpful when a move, score, friend room, or daily challenge result looks wrong.
Classroom and Partnership Questions
Teachers can also use this address for classroom feedback, lesson ideas, accessibility concerns, and suggestions for new math game modes. Partnership notes should include the audience, intended use, and any timing or publishing constraints.
Helpful Next Step
Use this page as a starting point, then move to the related playable game or guide. A short round followed by one explanation is usually more useful than repeating many rounds without reflection.
How to Use This Page
For the best result, choose one related game, play a short round, and then write down one thing that changed the outcome. That may be a calculation, a pattern, a missed fact, or a better move. Repeating this small cycle gives the page a practical purpose beyond browsing.