Activity
Mon
Wed
Fri
Sun
Nov
Dec
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
What is this?
Less
More
Memberships
Dr. Mike's Chess Academy
775 members • Free
Software Engineering
291 members • Free
Contributions
@christian-schaefer-1917
Software Architect, Climber, Road-Biker
Active 4d ago
Joined Sep 9, 2025
Powered by