Objective: Delete numbers from the grid so that each row and column adds up to its target sum (shown on the right and bottom edges).
How to Play:
- Click once on a number to mark it as deleted (red ✕)
- Click again to mark it as kept (green circle)
- Click a third time to reset it to neutral
- When a row or column's remaining numbers equal its target, the target turns green
Tips:
- Start with rows or columns where the target equals a single number in that line
- If a number is larger than the target, it must be deleted
- Look for combinations that can only work one way