Thành viên vàng
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.
Các câu lạc bộ
USChess - Members Only
3.374 thành viên
Improvers
26.666 thành viên
Chess.com Community
55.929 thành viên
Team USA
3.620 thành viên
Chess Club UW-Madison
133 thành viên