RegHex: Regex Crosswords

Every clue is a pattern. Every cell is a deduction. RegHex turns regular expressions into crosswords. Fill the grid so every row, column, or hexagonal axis matches its clues. Start with a guided tutorial, build your confidence, and work up to expert puzzles that need several clues to fit together. 200 VERIFIED PUZZLES Explore 5 tutorial puzzles, 30 easy, 30 medium, 30 hard, 25 expert, and an 80-puzzle daily rotation. Every built-in puzzle has exactly one solution. Revisit recent daily challenges in the playable 30-day archive. RECTANGLES AND ROTATING HEXAGONS Play familiar rectangular grids or hexagonal boards with clues along three axes. Rotate hex boards in 120-degree steps to see a new angle. The selected-cell clue bar keeps the relevant patterns close at hand. LEARN AS YOU PLAY Live checking shows satisfied and violated clues. Prefer a sterner challenge? Turn off red feedback and keep only the green matches. Search the built-in regex reference for examples of character classes, repetition, groups, alternation, and backreferences. MAKE AND SHARE YOUR OWN Create rectangular or hexagonal puzzles in the editor. RegHex checks that each creation has one unique solution before you save it. Share a compact text code through your chosen apps, or paste a code to import a puzzle. BUILT FOR APPLE DEVICES Enjoy touch controls on iPhone and iPad, with keyboard-first play and menu commands on Mac. Track best times, statistics, daily streaks, and 12 local achievements. Optional iCloud sync keeps progress and custom puzzles available across your Apple devices using the same Apple Account. PLAY OFFLINE All built-in puzzles are included. No advertising, developer-run analytics, subscription, or RegHex account. Cloud sync uses your private iCloud storage. For developers, students, and puzzle lovers who enjoy thinking in patterns.