Pretty easy and straight forward achievement. Click on Daily Challenges and you will get the option of one of the 5 different styles of Solitaire. (Klondike, Spider, FreeCell, Pyramid, or TriPeaks). Depending on the level from Easy, Medium, Hard, or Expert, and the style is what determines the goal to win the challenge. Choose an Easy game and this should be no problem. I did this on Klondike Easy and had to have a score of 200.