My mother lang isn't English, so my gramer so poor, pardon.
Zos is great Sudoku game I have ever played, it's graphics and sound is very Excelent!
However I found some dis-ordinary situation(may be bug), and some suggestion.
1. I can't hear any ambiance sound in Custome mode.
2. When i turn on "Show incorrect number" and "Show Dups", and I put some dups number, that number only is flashing, other dups isn't. If I turn off "Show incorrect number", all dups number is flashing.
3. When I try to enter Web sudoku (http://www.websudoku.com/) as Hard or evil mode, Zos can't recognize the puzzle, the "Play" button isn't apper.
I hope that Zos is getting smarter and smarter, so ZoS become ultimate Sudoku game and powerful solving tools in the world. Please develop ZoS contiuously.
p.s.: The charging system is very convenient so I have purchased your copy of ZoS easly. thanks.