http://www.chess.com/explorer/
http://chessok.com/?page_id=352
http://www.365chess.com/opening.php
http://gameknot.com/chess-games-database.pl?h=1&bd=0&fb=0
http://www.shredderchess.com/online-chess/online-databases/opening-database.html
http://www.chessgames.com/perl/explorer
http://www.chessage.com/database/opbrowser.php
http://www.chessebook.com/openings3.php
http://www.masterchessgames.com/Chess-Openings-Explorer.htm
http://www.eudesign.com/chessops/
http://en.wikibooks.org/wiki/Opening_theory_in_chess
http://www.csm.astate.edu/~wpaulsen/chess/chess.htm
http://www.chesscenter.com/twic/twic.html
http://www.chesslive.de/
http://chesslab.com/PositionSearch.html
http://www.newinchess.com/NICBase/Default.aspx?PageID=400
http://www.at-krays.com/chess.html
http://ingo-schwarz.de/category/schach/icofy-base-schach/
http://www.ruschess.com/
www.chessbase.com
tmam ya negm
شكرا
http://www.chess.com/explorer/
http://chessok.com/?page_id=352
http://www.365chess.com/opening.php
http://gameknot.com/chess-games-database.pl?h=1&bd=0&fb=0
http://www.shredderchess.com/online-chess/online-databases/opening-database.html
http://www.chessgames.com/perl/explorer
http://www.chessage.com/database/opbrowser.php
http://www.chessebook.com/openings3.php
http://www.masterchessgames.com/Chess-Openings-Explorer.htm
http://www.eudesign.com/chessops/
http://en.wikibooks.org/wiki/Opening_theory_in_chess
http://www.csm.astate.edu/~wpaulsen/chess/chess.htm
http://www.chesscenter.com/twic/twic.html
http://www.chesslive.de/
http://chesslab.com/PositionSearch.html
http://www.newinchess.com/NICBase/Default.aspx?PageID=400
http://www.at-krays.com/chess.html
http://ingo-schwarz.de/category/schach/icofy-base-schach/
http://www.ruschess.com/
www.chessbase.com
http://www.at-krays.com/chess.html
http://ingo-schwarz.de/category/schach/icofy-base-schach/
http://www.ruschess.com/