Златен Член
Hi, I'm Jeff. I am a data scientist who enjoys playing daily chess in his free time. I also have a PhD in mathematics which I earned from the University of Wisconsin-Madison.
Клубове
Improvers
26 860 Членове
USChess - Members Only
3 397 Членове
Chess.com Community
56 578 Членове
Team USA
3 626 Членове
Chess Club UW-Madison
133 Членове