1
You get a grid of numbers. The numbers on the right edge and bottom edge are target sums — one for each row and one for each column.
2
Tap a number to delete it — it gets crossed out and doesn't count anymore.
Tap again to lock it ✓ (you're sure it stays).
Tap again to reset it back to normal.
3
Your goal: delete the right numbers so that what's left in each row and column adds up to the target. When a row or column hits its target exactly, it turns green ✅.
4
If a row or column goes over the target, it turns red ❌. That means you've kept too many numbers — delete more!
5
Every puzzle has exactly one solution. No guessing — pure logic! Tap 💡 for a hint if you're stuck (3 per puzzle).
🔗
Hit 🔗 Challenge at any time during a game to share that exact puzzle with a friend. Beat each other's times!
Quick Example — 3×3
3
7
5
8
4
2
6
8
1
8
9
10
4
2
20
Crossed-out numbers are deleted. Every remaining row and column hits its target ✅