Edgey: Tile Logic Puzzle

Every tile has four edges. Every edge carries a mark. Place them so that each pair of touching edges agrees, and the board is solved. That is the whole rule. There is nothing else to learn and no tutorial to sit through — the first puzzle is four tiles and teaches itself. WHAT MAKES IT HARD The rule is simple. The boards are not. A 3x3 grid has one answer and several convincing near-misses, and by the time the shapes reach 6x6 you are holding three constraints in your head at once and finding that the fourth undoes them. Every level is hand-tuned. There is no generator quietly producing thousands of interchangeable boards — there are 26, each one built, solved and checked, and each one is a different idea. HOW IT PLAYS Lift a tile and drop it on another to swap them, or on an empty space to move it. Tap a tile to turn it a quarter. That is the entire control scheme. You are ranked on…