FlowConnect: Pipe Puzzle

Every puzzle has one solution, and it uses every square on the board. FlowConnect is a pipe-connecting puzzle with one rule that changes everything: joining all the matching pairs isn't enough. The board has to be completely full. Leave a single empty square and the level isn't solved — so there is always exactly one right answer to find, and never a lucky guess that happens to work. WHAT'S INSIDE • 240 puzzles across 10 packs, from a gentle 5x5 up to a 22-colour 12x12 • A new Daily Puzzle every day, with streak tracking • Time Trial: three minutes on the clock, +3 seconds for every clean solve • Rectangular packs (5x8, 6x9, 7x10) that break the square-grid habit EVERY PUZZLE IS PROVEN Each level is generated from a solution and then machine-verified to have exactly one. No puzzle ships until a solver has proved its answer is unique. So if you are stuck, the puzzle is solvable — and there is precisely one way through it. BUILT TO PLAY WELL • Draw pipes with your finger; the line follows exactly where you touch • Undo any move, or restart instantly • Hints when you want them, never pushed on you • Pattern fills for players who cannot rely on colour alone • Light and dark themes • Plays fully offline — no account, no sign-up, nothing to create Free to play, supported by ads.