Lighthouse Keeper's Logbook

On a foggy night, light the way for the ships as an apprentice lighthouse keeper. Lighthouse Keeper's Logbook is a sudoku puzzle you solve while clearing a fog-covered grid bit by bit. At first you can only see the rows and columns your lighthouses reach. Each time you write the correct number, the fog clears along that cell's row and column, and the hidden numbers appear. Where should you light next to reveal the next clue? The fun of clearing the fog in the right order is added to the logic of sudoku. ■ Fog Routes - The grid is covered in fog, and the given numbers are hidden too - The rows and columns of the lighthouse cells are clear from the start - A correct number clears the fog along its row and column - You can write numbers and notes in fog cells too (a wrong number counts as a mistake) - When you're stuck, a flare lights up the row and column of a cell you choose (once per puzzle) ■ 5 seas, 100 routes, and 100 bonus puzzles Sail across the sea chart from Cape Cove through the Misty Strait, Island Night and the Open Sea to the Farthest Lighthouse. The farther you go, the fewer the lighthouses and the deeper the fog. Light every route in a sea to open the route to the next one, plus 20 bonus puzzles for that sea. You can view the scenery of the seas you've lit full screen in the Ship's Log. ■ Ship's Log (classic sudoku) You can also play classic sudoku without fog: 400 puzzles across Easy, Medium, Hard and Expert. The list for each level shows which puzzles you've solved at a glance, and you can replay any one you like. ■ Easy to play - Notes, undo and hints - Highlights the row, column and box of the selected cell, and the same numbers - Your board is saved automatically for each puzzle, so you can pick up where you left off. You can also start over - Turn music and sound effects on or off separately - Share your result as an image in the style of the Ship's Log - A guide to how to play for first-timers ■ Available in English, Tiếng Việt and Japanese Switch languages from the language button on the home screen. ■ Recommended for - Sudoku and number place fans who want to try a slightly different rule - Anyone who wants a short brain workout - Anyone who loves a quiet fantasy world of fog and lighthouses * This app shows ads. From the second hint on, and for flares, you can use them by watching an ad.