Zchess Features problems organized by type, problem solving tips and biographies of famous players. http://www.geocities.com/matthew1585/ Geocities.com~Site InfoWhoisTrace RouteRBL Check
Chess Tempo Interactive site, contains over 11,000 chess problems, puzzles and members rated by Glicko rating system. http://chesstempo.com/ Chesstempo.com~Site InfoWhoisTrace RouteRBL Check