Suduku koi fish

this game you can feel the emotion in a logical train of sudoku and fish grow.The fish grow according to your Sudoku solving
When you touch the screen, there is also fun to feed.
special feature----------------------
- You can feel the emotion and logic of fun together.- Provide hints- 4 levels in step- Undo / redo functionality- Highlights of selected cells- Highlight errors- Clean interface and smooth control- Sudoku storage capabilities- Users can change the font size and color you want the screen Sudoku- Error Check availability- A fun and interesting sound- Touch in the main can not afford to eat the fish