The goal

Fill in the correct cells to reveal a hidden picture. The numbers beside each row and above each column tell you the lengths of the runs of filled cells in that line, in order, with at least one empty cell between runs. For example, “3 1” means a run of three filled cells, a gap of one or more, then a single filled cell. Every puzzle is solvable by pure logic.

Controls

• ⬛ Fill mode paints cells; click a painted cell to clear it.
• ✕ Mark empty mode places an × on cells you’ve deduced must stay empty — marks are just for you; only filled cells count.
• When a row or column matches its clue, the clue fades out.

Tips

• Start with big numbers: on a 10-wide line, a clue of 8 forces the middle six cells.
• Rows and columns of “0” are all empty — mark them with × right away.
• Work back and forth: every cell you fill in a row narrows down its columns.

Finishing

The timer starts when the puzzle opens and stops the instant your filled cells match the hidden picture — the × marks clear away to show it off. Sizes: Easy 8×8, Medium 10×10, Hard 12×12.