Lightdoku: Daily Logic Puzzle

Lightdoku is a relaxing logic puzzle and brain game where every move is pure deduction. Each grid is split into colored regions. Place exactly one lighthouse in every row, every column and every region, and never let two lighthouses touch, not even diagonally. Easy to learn, deeply satisfying to master. 🧠 PURE LOGIC, NEVER A GUESS Every logic puzzle has exactly one solution, and you can always reach it by reasoning alone. No luck, no trial and error: just a calm brain teaser and that perfect click when the last light falls into place. ☀️ A NEW DAILY PUZZLE One fresh 8×8 daily puzzle, the same board for every player. Solve it each day to build your streak and fill your weekly calendar. 🗺️ 200 LEVELS TO MASTER Climb five chapters, from a gentle 4×4 warm-up to tricky 8×8 grids. Levels unlock one by one as your logic skills grow. ♾️ ENDLESS PRACTICE Choose any board size from 4×4 to 8×8 and a difficulty from Easy to Expert, and get a brand-new grid puzzle every time. 💡 PLAY YOUR WAY • Tap once for a lighthouse, again for an ✕ note, again to clear • Guard lights highlight every row and column your lighthouses cover • Three hearts per puzzle, so one mistake never ends your game • Undo anytime, plus 3 free hints every day • No timer on screen: a relaxing, zen puzzle experience 🌙 MADE WITH CARE • Clean, calm design in light and dark mode • Colorblind-friendly region patterns • Track streaks, best times and chapter progress • Play offline, no account or Wi-Fi needed Love Sudoku, nonograms, Star Battle or other brain training puzzles? Lightdoku is your new favorite daily logic game. Download free and light up your mind.