Chess Opening Theory/1. d4/1...Nf6/2. c4/2...c5/3. d5/3...b5

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< Chess Opening Theory‎ | 1. d4‎ | 1...Nf6‎ | 2. c4‎ | 2...c5‎ | 3. d5
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Benko Gambit
a b c d e f g h
8a8 black rookb8 black knightc8 black bishopd8 black queene8 black kingf8 black bishopg8 black kingh8 black rook8
7a7 black pawnb7 black kingc7 black kingd7 black pawne7 black pawnf7 black pawng7 black pawnh7 black pawn7
6a6 black kingb6 black kingc6 black kingd6 black kinge6 black kingf6 black knightg6 black kingh6 black king6
5a5 black kingb5 black pawnc5 black pawnd5 white pawne5 black kingf5 black kingg5 black kingh5 black king5
4a4 black kingb4 black kingc4 white pawnd4 black kinge4 black kingf4 black kingg4 black kingh4 black king4
3a3 black kingb3 black kingc3 black kingd3 black kinge3 black kingf3 black kingg3 black kingh3 black king3
2a2 white pawnb2 white pawnc2 black kingd2 black kinge2 white pawnf2 white pawng2 white pawnh2 white pawn2
1a1 white rookb1 white knightc1 white bishopd1 white queene1 white kingf1 white bishopg1 white knighth1 white rook1
a b c d e f g h
Position in Forsyth-Edwards Notation (FEN)

rnbqkb1r/p2ppppp/5n2/1ppP4/2P5/8/PP2PPPP/RNBQKBNR w

Moves: 1.d4 Nf6 2.c4 c5 3.d5 b5
ECO code: A57-A59
Parent: Benoni Defence

Benko Gambit

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Black offers the b5 pawn in return for a slight lead in development and a superior pawn structure. The main idea is that Black gets strong positional pressure against White's queenside, where they have two open files for his rooks (after ...a6), and an open diagonal for the fianchetto on g7. The pawn structure has lasting effect and often even if White enters the endgame up a pawn, they will find it hard to convert this advantage into a win. As theory has developed, however, it's become harder for Black to find lines with winning chances and with proper play white can usually weather the storm.

Theory table

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For explanation of theory tables, see theory table and for notation, see algebraic notation..

1. d4 Nf6 2. c4 c5 3. d5 b5

4 5 6 7
cxb5
a6		 bxa6
Bxa6		 Nc3
d6		 Nf3
g6		 ∞
Nf3
g6		 cxb5
a6		 Nc3
axb5		 e4
b4		 ∞
a4
b4		 Nd2
g6		 e4
d6		 Ngf3
Bg7		 ∞
Nd2

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References

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Wikipedia has related information at Benko Gambit

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