You are downloading the Sudoku Challenge XAP file v18.104.22.168 for Windows Phone. Sudoku Challenge is a free and fun Puzzle & Trivia game: Take the Sudoku Challenge. Compete against the world and try to get on the leaderboard in all four levels (Easy, Medium, Hard & ... You can now download the offline XAP file to install & try it.
Download Locations for Sudoku Challenge 22.214.171.124 XAP file
Important Notice: Now Due To Unspecified Limitations, You Can Not Use The Offline XAP File To Install It Any More.
To try to install it manually from an SD card, you should choose one of the server location above to get the offline Sudoku Challenge XAP file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.