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The chess opening characterised by the moves 1.d4 Nf6 2.c4 c5 3.d5 b5 (in algebraic notation) is known as both the Benko Gambit and the Volga Gambit. This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... Image File history File links ghjfdjdfjkghjgjghj File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... Image File history File links ghjfdjdfjkghjgjghj File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ... This image is originally from xboard. ... Image File history File links ghjfdjdfjkghjgjghj File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... Image File history File links ghjfdjdfjkghjgjghj File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ... Image File history File links ghjfdjdfjkghjgjghj File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... Image File history File links ghjfdjdfjkghjgjghj File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ... This image is originally from xboard. ... Image File history File links ghjfdjdfjkghjgjghj File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ... This image is originally from xboard. ... This image is originally from xboard. ... Image File history File links ghjfdjdfjkghjgjghj File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ... This image is originally from xboard. ... Image File history File links ghjfdjdfjkghjgjghj File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ... This image is originally from xboard. ... Image File history File links ghjfdjdfjkghjgjghj File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ... This image is originally from xboard. ... Image File history File links ghjfdjdfjkghjgjghj File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ... Image File history File links ghjfdjdfjkghjgjghj File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ... This image is originally from xboard. ... Image File history File links ghjfdjdfjkghjgjghj File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ... This image is originally from xboard. ... Image File history File links ghjfdjdfjkghjgjghj File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ... This image is originally from xboard. ... Image File history File links ghjfdjdfjkghjgjghj File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... Image File history File links ghjfdjdfjkghjgjghj File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... The first moves of a chess game are the opening moves, collectively referred to as the opening. ... Algebraic chess notation is the method used today by all competition chess organizations and most books, magazines, and newspapers to record and describe the play of chess games. ...

The main line continues with the moves 4.cxb5 a6 5.bxa6 Bxa6 followed by Black fianchettoing the f8 bishop. Black's compensation for the pawn takes several forms. White has an immediate problem with the f1 bishop, for instance: if he moves the e-pawn to oppose the bishop on a6, then Black will play ...Bxf1, and after recapturing with the king, White will have to spend time castling artificially with g3 and Kg2; while if the bishop is fianchettoed it will be in a rather passive position, hitting White's own pawn on d5. Black also obtains good control of the a1-h8 diagonal and can exert pressure down the half-open a and b files. These are benefits which can last well into the endgame and so, unusually for a gambit, Black does not generally mind if queens are exchanged; indeed, such an exchange can often usefully remove the sting from a kingside attack by White. In chess the fianchetto (Italian little flanking) is a pattern of development wherein a bishop is developed to the second rank of the adjacent knight file, the knight pawn having been moved one or two squares forward. ... Castling is a special move in the game of chess involving the king and either rook. ... A gambit is a chess opening, where something is sacrificed in order to achieve a better position. ...

Although the main line of the Benko is considered acceptable for White, there are various alternatives which avoid some of the problems entailed in the main line. The simplest is to just decline the gambit with 4.Nf3 or 4.a4. Another idea, which is popular at the Grandmaster level as of 2004, is to accept the pawn but then immediately give it back with 4.cxb5 a6 5.b3. The five original grandmasters of chess, from left to right: Lasker (seated), Alekhine, Capablanca, Marshall, Tarrasch (seated) The title International Grandmaster is awarded to world-class chess masters by the world chess organization FIDE. Apart from World Champion, Grandmaster is the highest title a chess player can attain. ...

The gambit's most notable practitioner has been its eponym, Pal Benko. Various other prominent players of a combative nature, such as English Grandmaster Michael Adams, have employed it at some time or another, though few have made it their main defence to 1.d4. Pal Benko is a chess grandmaster, who was born July 15, 1928 in France, but was raised in Hungary. ... Michael Adams (born November 17, 1971) is a British chess player. ...