Full list of all 45 Microsoft Sudoku (UWP) achievements worth 1,000 gamerscore. It takes around 80-100 hours to unlock all of the achievements on Windows.
Completed 500 puzzles
Reached Level 250
Won 12 Bronze Daily Challenge Badges
Won 8 Gold Daily Challenge Badges
Reached Level 100
Won 10 silver Daily Challenge badges.
Completed 100 Puzzles
Completed 10 Irregular puzzles
Completed 3 puzzles of each difficulty
Solved 100 Irregular Shapes
Completed a puzzle on each difficulty
Completed a Grandmaster puzzle
Completed 10 Expert puzzles without making mistakes
Used 15 hints
Completed 5 puzzles without making mistakes
Broke 250 ice blocks
Reached Level 30
Completed a Master puzzle
Completed a Master puzzle without using Notes
Solved 3 Expert puzzles in a row
Completed an Expert puzzle
Entered more than 500 Notes
Completed 5 Hard puzzles
Completed all Daily Challenge Days of a month
Completed at least one Daily Challenge on each day of the month's calendar
Won a diamond Daily Challenge badge.
Finished a puzzle by filling the corner cells last
Completed a puzzle where the last nine consecutive moves are the numbers 1-9
Reached Level 10
Broke 4 ice blocks in a single move
Finished a puzzle by correctly placing 7 consecutive sevens
Completed 5 Medium puzzles
Completed a puzzle where the last squares filled formed an “X” shape in the centre 3x3 block
Completed a puzzle with a theme that isn't named Simple
Completed a puzzle with the "Show Remaining" setting turned off
Completed a puzzle by solving the centre cell last
Entered more than 100 Notes
Placed 500 numbers correctly
Completed a puzzle in less than 1 minute
Solved 5 Easy puzzles in a row
Completed your first puzzle
Completed a puzzle without using Notes
Completed an Irregular Daily Challenge
Won your first Daily Challenge
Reached Level 2