Daily Challenge
Everyone gets the same five-grid UTC race. Signs, Digits, or Mix focus rotates by day. Clear all five before the clock hits zero.
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Daily arithmetic puzzle
Think. Place. Balance.
A calm equation grid for iPhone. Fill digits and signs so every row and column evaluates true — then race the shared five-minute Daily Challenge.
App Store product page publishes with launch. Badge links to the Cody1 developer listing until then.
- 10,000
- On-device puzzles
- 05:00
- Daily race
- 5
- Grids per run
Gameplay
Place pieces until every equation balances.
Each grid is a set of interlocking arithmetic lines. Drag digits and operators from the tray into empty cells. Multiplication and division resolve before addition and subtraction. Division must be exact.
Training
Practice anytime from the same 10,000-puzzle bank. Shareable grid numbers keep practice deterministic — training never touches the boards.
Encore
Finish all seven daily runs in the UTC week to unlock Encore — an extra challenge for players who stayed the course.
Controls
Quiet tools for focused play.
The board stays central. Actions sit under the tray for one-handed clears.
Daily ChallengeStarts today’s five-grid, five-minute race.
TrayDrag digits and signs onto empty cells, or drag placed pieces back to remove them.
UndoReverses the last placement without resetting the whole grid.
SubmitChecks a full board. Correct clears advance; incorrect stays on the same grid.
TrainingCustom practice by family, difficulty, and shareable grid number.
ArchiveReview past daily results and revisit earlier runs.
RanksScore, Accuracy, Grids, and Streak — global and private groups.
BadgesLocal milestones for consistency, cleans, streaks, and Encore.
Puzzle library
10,000 unique puzzles. No download packs.
Daily Challenge and Training draw from the same offline bank: validated equation grids across Signs, Digits, and Mix, tuned from Intro through Expert.
Signs3,500 puzzles
Digits3,500 puzzles
Mix3,000 puzzles
DifficultyIntro → Expert
Every grid ships with a known integer solution. Multiplication and division precede addition and subtraction; dividing by zero is never allowed.
Scoring
Reward clean clears and leftover time.
Score builds from balanced equations, clean grids, difficulty, accuracy, and speed when you finish the full sequence before the buzzer.
Balance
Points land when equations evaluate true. Harder families and tiers pay more for the same clear.
Accuracy
Incorrect submits stay on the board and cost clean-grid bonuses. Flawless runs keep the accuracy line high.
Speed
Finish all five with time left for a speed bonus, plus a finish bonus when the sequence completes.
Ranks & friends
Climb Score, Accuracy, Grids, and Streak.
Completed daily runs can submit to Game Center and CloudKit boards. Create a private group, share a short invite code, and compare the same daily scores with friends.
Global boards
Filter by Score, Accuracy, Grids, or Streak across Today, This Week, and All Time.
Private groups
Start a group from Ranks → Private, share the invite code, and manage membership when you are admin.
Profile
Set a nickname and avatar in Settings so friends recognise you on every board.
Screenshots
Built for calm, focused number sense.
Ready for today’s five grids?
10,000 unique puzzles on device. A fresh daily race every UTC day. Think. Place. Balance.
