Sudoku by MindMagik

Choose from over 3600 uniquely solvable puzzles, or add your own. Earn up to 70 different medals for achieving challenges.

An intuitive drag-and-drop interface allows numbers to easily be added, moved, replaced or removed.

With a single tap, zoom in and efficiently add multiple pencil notes across a block. This is great for adding notes in pairs.

Learn solving techniques by using small or big hints. Solving techniques range from basic to advanced with step-by-step explanations.



Features:



* Improve your Sudoku skills by solving puzzles with small hints. Small hints indicate what to look for without directly revealing the next step. Switch to a big hint, if necessary, while learning a particular solving technique.



* Enter a custom puzzle, or add one from a book, paper or magazine. The puzzle difficulty is automatically categorized and is available to play or solve with a step-by-step explanation.



* Over 60 types of hinting algorithms, including Single/Pair/Triple/Quad/Quint types, X-Wings, XY-Wings, XYZ-Wings, seven different categories of Unique Rectangle, Swordfish, Jellyfish, Squirm-bags, Finned and Sashimi fish , and several other advanced chaining techniques.



* Highlight all instances of a pencil note or notes, to help identify note elimination techniques.



* Unlimited undo and redo. Retrace your steps all the way back to the beginning of the game or to a particular point in the game.



* Improve on the time for a previously solved puzzle, or solve again without using hints to earn more stars.



* Save the current position as a bookmark. Return to the saved position at any time. The game is autosaved when switching applications or after an unexpected power failure.



* Interactive tutorial available.