Nonograph

Nonograph is a nonogram (picture cross) puzzle where every solved grid develops into a real photograph. Use the numbers beside each row and column to work out which squares to fill: no math, just calm logic. 300 photo puzzles across 15 chapters, from quick 5x5 grids to relaxing 15x15 ones, a boss picture against the clock at the end of each chapter, a gallery of every photo you reveal, and a new 15x15 picture every day. A short tutorial teaches the rules if you have never tried a nonogram.

Use the numbers next to each row and column: they tell you how many squares in a row to fill, in order. Fill the right squares and the grid turns into a photo. A wrong square costs a heart.
Mouse: left click fills a square, right click marks it as empty, click and drag paints a whole line, hovering highlights the row and column clues, Esc goes back.
Touch: tap to fill a square, drag to paint a line; the black/white switch at the bottom chooses between filling squares and marking them empty.