Highlighter Puzzle Book

A quiet puzzle book for your pocket. Thirteen pencil, paper and card games, drawn fresh every time, with nothing in the way: no ads, no tracking, no account and no internet connection needed. Play on a plane, on the underground, in a tent, or anywhere your phone has no signal. Everything runs on your device, and your progress stays there too. THIRTEEN GAMES Number puzzles • Sudoku: fill every row, column and box with 1 to 9 • Killer Sudoku: Sudoku where dashed cages add up to their sums • Kakuro: a crossword of sums, no digit twice in a run • Calcudoku: a Latin square where every cage adds up Shading, placing and loops • Nonograms: shade squares from the clues to reveal a picture • Star Battle: stars in every row, column and region, never touching • Nurikabe: shade the sea so every number is an island of its size • Slitherlink: draw one loop that agrees with every number • Minesweeper: no-guess boards, from Beginner up to a huge 30×30 field you can pinch to zoom Quick games • 2048: slide the cards, pair them up, chase 2048 • Sweets: swap sweets, line up three, set off chains and specials Cards • Klondike: classic patience, Draw 1 or Draw 3 • FreeCell: four spare cells and every card face up FRESH, FAIR PUZZLES Every logic puzzle is generated on the spot and has exactly one solution, so it can always be solved by reasoning alone. You'll never run out, and you'll never be forced to guess. MADE TO BE PLAYED, NOT TO HOOK YOU • No ads, ever • No tracking, no analytics, no data collected • No account or sign-in • Works fully offline • No energy, no lives, no waiting THOUGHTFUL TOUCHES • Difficulty levels for every game • Hints, undo and pencil marks where they help • Your round is saved as you play: leave mid-puzzle and pick up where you left off • Best times, scores and a daily streak • Star your favorites to keep them at the top • Light and dark appearance • Full hardware keyboard support on iPad • Set in Atkinson Hyperlegible, a typeface designed for readability A clean page, a highlighter and a good puzzle. That's it.