Pipes Sudoku

Sudoku's brain, a plumber's hands. Deduce the one pipe that links inlet to outlet from the row and column counts. One solution. Pure logic. Zero guessing.

Pipes Sudoku is a calm, brain-bending logic puzzle: Sudoku's deduction meets the satisfaction of laying pipe.

One continuous pipe must travel from the inlet to the outlet across the grid. The numbers along the top and left edges tell you exactly how many cells in each row and column carry pipe. From those counts alone you can deduce the entire route. Every puzzle has exactly one solution, reachable by pure logic. No guessing, ever.

Drag pieces onto the board or tap to place them, mark your deductions with the X and ? notes, and watch the pipe pressurize when you solve it.

FEATURES • Three grid sizes: Easy 6×6, Medium 8×8, Hard 10×10 • One guaranteed solution per puzzle, solvable by logic, never luck • Endless, randomly generated puzzles • Teaching hints that show the next deduction, not just the answer • Undo, restart, and give-up-to-reveal • Every game auto-saves, resume any time • Relaxing, tactile design with soft sounds; a fidget-friendly thinking space • Play in English, Portuguese, or Spanish • Universal: iPhone, iPad, and Mac. No ads. Plays fully offline.