Dane Mattson
Superior, WI
کارمند Chess.com
بازیکن عنواندار
وبلاگنویس برتر
مربی Chess.com
National Master Dane Mattson. Chess.com Daily Puzzle curator, Lessons author. Fellow traveler on the road to chess improvement and fullfilment. Join us for the 2025 Improvement Challenge! 
https://www.chess.com/news/view/announcing-chess-improvement-challenge-2025
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