Here is the full list of all 33 SQR 3 achievements.
Pass the random endless level.
Win 3 games in a row on 2nd endless level.
Pass the 2nd endless level.
Pass the 4th level.
Pass the 3rd level.
Pass the 2nd level.
Pass the 1st level.
Pass the 5th level.
Pass the 6th level.
Pass the 7th level.
Pass the 8th level.
Pass the 9th level.
Pass the 10th level.
Pass the 11th level.
Pass the 12th level.
Pass the 13th level.
Pass the 14th level.
Pass the 15th level.
Pass the 16th level.
Pass the 17th level.
Pass the 18th level.
Pass the 3rd endless level.
Pass the 4th endless level.
Pass the 5th endless level.
Pass the 6th endless level.
Pass the 7th endless level.
Win 3 games in a row on 3rd endless level.
Win 3 games in a row on 4th endless level.
Win 3 games in a row on 5th endless level.
Win 3 games in a row on 6th endless level.
Win 3 games in a row on 7th endless level.
Win 5 games in a row on endless level.
Win 10 games in a row.