Fit and fuse flat shapes to fill the silhouette exactly, but some pieces can't be flipped, so think before you place.
You are given a silhouette, a set of grid cells, and a collection of flat polyomino pieces. Place the pieces so every cell of the outline is covered exactly once, with no overlaps and nothing spilling outside. Some pieces can't be flipped, and two free pieces can be fused into one compound shape for the level, so orientation and grouping matter as much as fit.
Tangle is about decomposing a silhouette into shapes that fit it perfectly, building spatial and geometric reasoning.
Covering a silhouette exactly with flat polyomino pieces is a tiling puzzle, the family that runs from pentominoes to the tangram.
Two original constraints: some pieces cannot be flipped, and two free pieces may be fused into one compound shape for the level.
Forbidding a flip is the sharper of the two. A polyomino and its mirror image are usually treated as the same piece, and removing that freedom roughly doubles the number of distinct shapes you must reason about — which is why handedness matters here in a way it does not in the classic puzzle.
Tangle is an original, free browser game about decomposing a silhouette into shapes that fit it perfectly. It is built in-house and plays in your browser.