About Pebble Mosaic

Pebble Mosaic is a sorting puzzle on a pixel picture. Every cell has a color it belongs to, but at first each one is covered by a pebble of the wrong color. Clear a pebble and the cell shows its true color, and a matching pebble circling on the track below flies up to fill it. The track has limited room, so deciding which pebbles to clear first is the puzzle. There are 23 pictures, from a heart to a frog.

How to play

1. Tap a pebble on the picture and it flies to the track below along with its connected same-colored neighbors (up to 10). Pebbles that already sit in the right spot cannot be moved.
2. When a cell is emptied and the track holds a pebble of that cell's color, the pebble flies up and locks in. A pebble you just moved down also locks in at once if an empty cell of its color already exists.
3. The track has a fixed number of slots (for example 5/12). You can only move as many pebbles as there are free slots; if the track is full and nothing more can be moved, you are stuck.
4. Finishing every cell of one color adds 3 track slots, and locking in several pebbles at once shows a praise message (INCREDIBLE! and so on). Fill the whole picture to clear the stage with a short celebration.
5. Three tools cost gold. Undo (20) cancels your last tap, Shuffle (30) re-mixes the colors of pebbles that are not yet in place, and Track +3 (40) adds track slots. You earn gold by finishing pictures, and more of it the fewer continues you use.
6. If you get stuck you can spend gold to get 6 more track slots and keep going (the cost rises with each continue, up to twice per run). Closing the prompt confirms the failure and lets you restart from the beginning. Clearing without continuing earns 3 stars, one continue 2, more than that 1; stars and gold are saved on this device.

Tips

• Empty the cells of colors that are already waiting on the track first. Those pebbles lock in immediately and free their slots again.
• Tapping a big cluster of one color fills a lot of the track at once. When room is tight, deal with small groups first.
• Completing a color adds track slots, so finishing the colors with the fewest cells first builds a buffer.
• A tap when the track is nearly full can be risky. Look for a color you can finish before you tap.