I play chess on the internet on chess.com Microsoft Edge appeared to be the preferred browser in my initial setup of surface pro 6. I used it to play my chess games flawlessly by using the pen to move the pieces. However, the program included a feature to help with playing strategy. Here I run into the problem of not being able to move the pieces. I did a lot of exploring to find a solution. It turned out that chess.com prefers to use Firefox as its preferred browser. Using Firefox made my playing experience again a joy. There is also the possibility that Google's Chrome can also be used (have not yet tried it). So, for all you chess lovers keep in mind to choose the right browser!