This App is Sudoku(Japan Puzzle GAME) the popular Anime/Manga/Comic "Attack on Titan(Shingeki no kyojin)".
There is no need to enter personal information and registration.
You can replace it with a "Titan special wallpaper" a Titan with extermination by the stage clear.
Sudoku(数独) originally called Number Place,is a logic-based, combinatorial number-placement puzzle.
The objective is to fill a 9×9 grid with digits so that each column, each row, and each of the nine 3×3 sub-grids that compose the grid contains all of the digits from 1 to 9. The puzzle setter provides a partially completed grid, which typically has a unique solution.
Attack on Titan is Japanese Anime/Manga/Comic "Shingeki no kyojin"
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