How it works
Each tile has a load value.
When a tile is ON, its value counts toward its row and column.
Keep every row and column at or under the limit while keeping your total load at or above the target.
Hint nudges one tile toward a guaranteed solution.
Solve shows a valid board instantly.
Save behavior
Your progress saves automatically in this browser.
Share the same puzzle with the link button.
Increased difficulty
You cannot move onto the next level until you clear the current one. Higher levels have larger boards and tighter limits, but the same mechanics.