Pencilmark: Logic Puzzles

Pencilmark is a logic puzzle app where you never have to guess. Every Star Battle, Skyscrapers and Kakuro puzzle is checked by a solver: exactly one solution, reachable by pure logic. WHY PENCILMARK • Solver-certified puzzles: one solution, no guessing, ever • “Why?” hints that name the technique, show the cells involved and explain the deduction • A fresh daily set of three puzzles, the same for everyone • Streak with a weekly shield that covers a missed day • Technique codex with real examples from the puzzles • Notes, undo, error check and a clean, large-touch board • Spoiler-free sharing: your time and hint use, never the solution • Light and dark themes, 12 languages, full offline play • No ads, no account, no tracking THREE GAMES • Star Battle: place stars so every row, column and region has exactly one, and no two stars touch, even diagonally. • Skyscrapers: fill the grid with building heights so every edge clue matches what you can see. • Kakuro: a crossword of sums, digits 1 to 9 with no repeats in a run. PRIVATE BY DESIGN Your progress, streak and notes stay on your device. No sign-up and no third-party SDKs. More than 250 puzzles from easy to expert. For fans of Star Battle, Skyscrapers, Kakuro, Sudoku-style logic grids, Queens-style puzzles and brain training without ads. Stuck? Ask “Why?” and learn the next step instead of giving up.