Full list of all 20 Microsoft Mahjong achievements worth 200 gamerscore. It takes around 3-4 hours to unlock all of the achievements on Windows Phone.
Achievements they've won
Achievements they've not won
Complete any puzzle in 2 minutes or less.
Complete four different puzzles in the hard category.
Complete your first hard puzzle on your phone.
Complete a puzzle on your phone with the "Show available tiles" option turned on.
Match 3 sets of wild tiles in a row.
Try out a different theme on your phone.
Complete your first puzzle on your phone.
Complete any puzzle without using Undo.
Match 20 pairs of tiles in a row where all 20 pairs are unique.
Complete the same puzzle 20 times.
Complete an expert puzzle in five minutes or less.
Win 10 games of Mahjong in a row.
After reaching "No More Moves", undo at least 10 moves in a row and then complete the puzzle.
Complete the Dragon puzzle 15 times.
Complete four different puzzles in the easy category.
Complete four different puzzles in the medium category.
Earn 10 Medals total across a Windows 8 device and your phone.
Earn 20 Medals total across a Windows 8 device and your phone.
Play 1,000 Mahjong Games or Begin a game on a Windows 8 device and finish it on your phone.
Complete 100 puzzles.