More than 100 000 chess games for analysis to explode your potential! You can use it for simple descriptive analysis (e.g. white/black percentage wins), upsets (ELO difference), most common opening moves, and most common ECO. You could also try to predict the winner based on his previous performance or try to improve the ELO ratings by minimizing the logloss. If you are a veteran, you may wish to train an ML model (the first 50 moves are included in this dataset along with the final move).