Lobby
Tournaments
Puzzles
Masterclasses
Players
Clubs
Watch
Journal
Switch to light theme
Active games
All my games
Start new game and compete for FIDE Online and Worldchess rating, or invite a friend and train with no hassle at all!
New game
Notifications
No notifications
My profile
Upgrade to Pro
Settings
Info & Bio
Sign out
Challenge
Mark Biernacki
26 y.
2010
Rapid
2010
Blitz
2010
Standard
About
Events
Statistics
Mark Biernacki
FIDE Rated
FIDE ID 2082322
Here since Nov 2016
Share Profile
Tweet
Embed
Share
Copy link
Challenge