Mac Chess app crashes each time i open it
This is a wonderful issue to follow the two articles Apple publishes on isolating issues (not that it's wonderful to crash, but this is a very small contained issue that should be easy to isolate and then fix):


https://support.apple.com/en-us/HT203161 - Isolating issues in Mac OS X


That sets the table for you to dive into software isolation (which this is clearly the first thing to try)


https://support.apple.com/en-us/HT201516 - Mac OS X: How to troubleshoot a software issue


In your case, making a new user account, verifying if the crash is system wide or just your account is the next step I’d take. Once that’s done, you can think about updates / verifying a backup, etc...