Play mirrored arithmetic decks in separate answer zones with live streak meters, local two-player mode and transparent scripted bots.
Useful to know
Is this a public leaderboard?
No. Eligible final solo scores can be saved only after explicit opt-in on this device, separated by rules and relevant settings. Local two-player sessions are unranked.
Can I play without a timer?
Yes. Choose Casual for word trails or Fixed cards for the maths games. Pause and explicit Resume are always available. Each session has a four-active-hour ceiling.
What happens to mistakes or skipped cards?
They remain in the review. A card accepts one scored response; a mistake cannot be erased by retrying. Skips and unanswered items are counted separately.
Do I need to fill in the settings before I can play?
No. Quick play starts a complete built-in round with sensible defaults. Open Customise this game only when you want to change the available settings.
Where are my files and inputs processed?
Play stays in this browser, with no account or remote leaderboard. Personal bests are saved only if you enable that option. Reset clears the round; use Erase device scores to remove those optional records from this browser. Private prompts and answers are excluded from the shared summary actions.
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Tell others how well Maths Battle worked for you. No account needed.