Two colors first
1 of 3Yellow and Purple cover 16 of the 18 shards, and no two touching shards match.
Shard · How to play
Pick a mode and a palette, then fill the canvas with color. Here's how each mode works, shown on real boards from the game.
Most of Shard is free. A few options, like Large boards, Hard puzzles and some palettes, come with Premium. See what's free and what's Premium.
Create
There's nothing to match and no wrong answer. Choose a palette, tap a color, and tap any empty shard. When every shard has a color, the piece is finished and goes to your Gallery.
Change your mind as often as you like: the Eraser clears any shard you've filled.
How Art scores
Each shard scores once, so erasing and refilling doesn't add points. The finishing bonus is 90 on a Small canvas, 300 on Medium and 630 on Large.
Solve
Every shard needs a color, and shards that share an edge need different ones. Easy and Medium give you four colors; Hard gives you three.
You can try anything. If a color would match a neighbor, the game won't place it and the clashing shards flash. Every puzzle can be finished: with four colors that's guaranteed by the four-color theorem, and every three-color puzzle is checked before you see it.
Most of a puzzle can be painted with just two colors. Here and there, a shard already touches both of them, so it needs a third or fourth color. Those shards are your accents.
Each puzzle shows a target: the fewest accents the game could find. Finish at or under the target for the full accent bonus, or close to it for half. Some puzzles can be finished with two colors alone, and the game tells you when you've got one.
Hint in Puzzle
Hint lights up the shard with the fewest colors that still fit, a good place to go next. It doesn't cost any points.
Puzzle scores shards the same way as Art. At the finish you get 5 points per shard plus any accent bonus, multiplied by the difficulty: Easy ×1, Medium ×1.5, Hard ×2.
An Easy puzzle from the game: 18 shards, Classic palette, target 2.
Yellow and Purple cover 16 of the 18 shards, and no two touching shards match.
Each outlined shard touches both Yellow and Purple, so neither main color fits there. They need a third color.
Sky Blue fills both. That's 2 accents on a target of 2, so this puzzle earns the full accent bonus.
Accents 2 / target 2What this puzzle pays at the finish
Plus the points for each shard you fill. Bigger canvases and harder difficulties pay more.
Tools
Tap Eraser, then tap a shard or cell you filled to clear it. Shardoku givens can't be erased. Points you've already earned stay.
With a cell selected, colors already used in its row, column or box dim, and colors that fit get a ring. It's on to start; turn it off in the in-game Settings to see every color. Moves that break the rules are blocked either way.
The rules for each mode are in the game too: open Settings during play and tap How to play.
Accessibility
Shard is played in color, so the palette you pick matters. These palettes keep their colors far apart, including for the common kinds of color blindness, and Shardoku can add a shape to every color.
One family of colors under two names: Classic is the default in Puzzle and Shardoku, and Accessible is its version for Art. The colors come from a set made for people with color blindness, and they stay clearly apart even when red and green are hard to tell apart.
Its colors differ a lot in lightness, from deep navy to cream, so they hold up well even when hues look alike.
Harder to tell apart if reds and greens look similar to you: Pastel, Duet, Kaleidoscope and Studio each have colors that can look almost the same. And on any palette, the more colors a board uses, the closer they sit, so 9-color boards are the hardest.
Turn them on in Settings, under Accessibility. Every color gets its own shape, on the board and in the color row, so you can solve by shape as well as by color. They're especially handy on 9 × 9 boards. Symbols don't appear in images you share.
Shard also has light and dark themes: in Settings, choose Dark, Light or System.
Progress
Your points count when you finish a piece, in every mode. Your total raises your level, and new levels unlock new palettes.
Free play goes up to level 7, and your points keep counting past it. Premium removes the cap. Compare Free and Premium.