"I fear not the man who has practiced 10.000 openings once, but I fear the man who has practiced one opening 10.000 times."
Clubes
Chess.com - Polska
50 208 Membros
MARIANCZELLO CLUB
48 781 Membros
Infoszach
7 814 Membros
Polski Związek Szachowy
24 658 Membros
Chess University - Poland
1 670 Membros