dkm Sudoku HD app for iPhone and iPad

The popular online DKM Sudoku where over 50 million puzzles have been generated is now available in the appstore.

Features include:

- Carefully crafted puzzles at four difficulty levels.
- Extensive solving aids from a gentle hint to a step by step walkthrough on solving next cell when advanced techniques are required.
- Option to fill in all possible values for each cell.
- Input puzzles from other sources and then solve with all the solve aids.
- Use pencil to fill in possible cell values.
- Undo all the way back to beginning.
- Two different modes to input cell values.
- Customize colors of grid and input.
- Tutorials to teach some advanced solving techniques.
- Specifically designed for iPad.
- Statistics of best and average times.