Sudoku 4ever 2.4.0

Unlimited number of puzzles, eight difficulty levels, world-class hint engine and game statistics - simply the best Sudoku app on the market. ••••• 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 and total time played for each difficulty level ★ Extremely configurable ★ The integrated solver solves any Sudoku in milliseconds ••••• Supports ••••• Portrait and landscape mode All screen types and sizes Touch screen, keyboard and trackball Installation on external storage (e.g. sdcard) Android 1.6-4.x ••••• 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 supported by unobtrusive ads