DailyThe standard daily challenge.
PracticeNormal rules, but you can reset infinitely.
Custom TriesSet your own guess limit!
ArchivePlay past daily puzzles.
InfiniteGives you infinite guesses!
Blind ModeColors fade after 3 seconds.
One MoveYou only get a single try!
ExpertOnly 3 guesses allowed.
Zen ModeUnlimited guesses, no stress.
SpeedrunA timer tracks your completion speed.
MemoryPrevious guesses disappear completely.
X-RayHints show if digits are higher/lower.
ChaosKeyboard scrambles after every guess.
No-MathGuesses don't need to be mathematically correct.
HardcoreMust use revealed hints in next guess.
Flash15 seconds per guess or game over!
MirrorThe equation board is reversed!