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.