Top-ranked chess player Magnus Carlsen is auctioning his jeans, with proceeds going to charity. The jeans caused a dress code dispute at December's World Rapid and Blitz Chess Championships. Carlsen was fined $200 but refused to change his pants, resulting in a dress code change by the governing body. The jeans, a size 32 Italian luxury brand, are listed as pre-owned on eBay. As of February 21, the highest bid was $8,100. The auction ends on March 1. Proceeds will support Big Brothers Big Sisters of America, funding youth mentorship at chess clinics and community events. (This story was generated by Newser's AI chatbot. Source: the AP)