software engineer, father of two sons, amateur Olympic weightlifter, improving chess player
https://ratings.fide.com/profile/118155876
https://lichess.org/@/mamciek
俱乐部
Liga Team Poland
287 会员
Team Poland
797 会员
PZSzach
354 会员
Infoszach
7,793 会员
The Jesse Kraai Club
95 会员