The numbers are clues. Each number is a run of filled cells in that row or column, in order, with at least one gap between runs.
2 1
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✏️Fill mode: tap a cell to fill it. Correct → it locks in. Wrong → it turns to ✕ and you lose a life.
✕Mark mode: tap to leave a note ✕ where you think a cell is empty. No penalty — toggle freely.
🖱️Right-click (desktop) places a ✕ in any mode.
✨Finishing a row or column auto-marks ✕ on the rest and strikes out its clue.
🏆Win by filling every cell of the picture. Lose if your lives run out.
💡Tip: start with the biggest clues — they leave the fewest possibilities. Every puzzle is solvable by logic alone.