15'000 puzzles, eight difficulty levels, the world's best hint functionality and statistics. The only Sudoku app you'll ever need! ••••• Game Play ••••• ★ Eight different Sudoku variants: Classic & Jigsaw puzzles (aka Squiggly), Asterisk-, Centerdot-, Color-, Hyper-, Percent- & X-Sudokus ★ Eight difficulty levels: very easy, easy, moderate, advanced, hard, very hard, fiendish, nightmare ★ Six input methods (digit first, cell first, mixed, Andoku cell first, Andoku digit first, popup) ★ Pencil marks with auto set or auto erase ★ Persistent undo/redo ★ Auto save ★ Bookmarks ★ Highlighting of selected digits and pencil marks ★ Highlighting of completed digits ★ Highlighting of incorrect digits ★ Coloring mode (cells and pencil marks) to support coloring solving techniques ★ Very advanced hint functionality ★ Analysis functionality to rate the difficulty of a Sudoku puzzle and to get a detailed list of required solving techniques ★ Game statistics: fastest, average, slowest times for each difficulty level ★ Extremely configurable ••••• Additional Features ••••• ★ Sudoku Editor: create your own Sudoku puzzle from scratch ★ Sudoku Importer: import Sudoku puzzles in five different formats: *.sdk, *.sdm, *.adk, *.opensudoku, *.1gsudoku. Supports all *.adk formats including jigsaw/squiggly puzzles with extra regions. ★ Sudoku Generator: generate new Sudoku puzzles in eight difficulty levels ★ Sudoku Solver: solve any Sudoku in milliseconds ★ Sudoku Manager: create, delete, rename folders and puzzles, filter by game status, difficulty and type ★ Synchronization of games and settings across multiple devices ••••• Supports ••••• ✔ Left-handed players (landscape) ✔ Portrait and landscape mode ✔ All screen types and sizes ✔ Touch screen, keyboard and trackball ✔ Installation on external storage (e.g. sdcard) ✔ Android 1.6-6.x Android N ••••• Hint Functionality ••••• ★ Full House ★ Hidden Single ★ Hidden Subset (Pair, Triple Quad) ★ Naked Single ★ Naked Subset (Pair, Triple Quad) ★ Locked Candidates (Pointing Claiming) ★ X-Wing (Regular, Finned Sashimi) ★ Swordfish (Regular, Finned Sashimi) ★ Jellyfish (Regular, Finned Sashimi) ★ XY-, XYZ-, WXYZ-, VWXYZ-, UVWXYZ-, TUVWXYZ-, STUVWXYZ-, RSTUVWXYZ-Wing ★ W-Wing ★ Almost Locked Candidates (Pair, Triple Quad) ★ Avoidable Rectangle (type 1 2) ★ Hidden Unique Rectangle ★ Uniqueness Test (type 1, 2, 3, 4 5) ★ BUG 1, BUG 2, BUG 3 and BUG 4 ★ Aligned Pair Triple Exclusion ★ Sue de Coq ★ ALS-XZ, ALS-XY-Wing ★ Remote Pairs ★ Bidirectional Cycles ★ Forcing X-Chains ★ Forcing XY-Chains ★ Nishio Forcing Chains ★ Double Forcing Chains ★ Contradiction Forcing Chains ★ Region Forcing Chains ★ Cell Forcing Chains If you like the game, don't forget to rate it! The free version is ad supported

Fixed some crashes related to in-app purchases