Stay strong, don't smoke (and convénceles a tus seres queridos que no fumen tampoco)
https://onlinelibrary.wiley.com/doi/10.1111/j.1521-0391.2012.00290.x
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8179217/#ref-9
Klubi
ABSOLUTE BEGINNERS
738 članov
The Owings Mills Chess Club
27 članov
Chess.com Community
42.294 članov
The Mark Mental's Invitation Club
25 članov
Team Spain
2.545 članov