1. The Grid
You start with a 12×12 grid of single-digit tiles (0–9). Your goal is to form valid math equations by tapping tiles to change them into operators.
2. Tap to Change
Tap any tile to cycle through: digit → + → − → ÷ → × → = → digit.
7
→+
→−
→÷
→×
→=
→7
3. Auto-Detection
Equations are found automatically — no dragging needed! After every tile change, the board scans for valid equations in all directions.
4. Directions
Valid equations can run in four directions (forward-reading only):
→ Left to right
↓ Top to bottom
↘ Diagonal down
↗ Diagonal up-right
5. Multi-Digit Numbers
Adjacent digit tiles form multi-digit numbers. For example, tiles 1 and 0 next to each other form 10.
1
0
×
1
=
1
0
6. Wild Numbers
Long-press any digit tile to make it wild. A wild tile's value can be changed by tapping (cycles 0–9) without changing other tiles. Wild tiles show a special glow.
7. Hints
Use the Hint button for help, but each hint costs 10 points.