Benoni structure
An asymmetrical structure where White has a pawn on d5 and Black has pawns on c5 and d6, giving White a space edge and Black a queenside pawn majority and active piece play.
White's d5 pawn is the key feature. No black pawn can ever challenge it, because Black's c-pawn sits on c5 and the e-pawn is gone, so it cramps Black for the whole game. Black's compensation is the half-open e-file, a queenside majority of three pawns against two, and the dark-squared bishop on g7.
Black's main plan is the queenside advance ...b5, usually after ...a6, to create a passed pawn or open lines. Knights go to e5 or to c5 via d7, and the pieces aim at e4. White's key weapon is the central break e4-e5, which can crush Black if it works.
White's plan is to keep e4 well protected, often with f3 or a bishop on d3, to slow ...b5 with a4, and to prepare e5 or f4-f5. White can also aim pieces at the d6 pawn, which no other black pawn can protect.
Common errors for Black are playing too slowly and letting White's e5 break come, and for White playing e5 without enough support. Practical tip: before Black plays ...b5, check that White cannot break with e5; before White plays e5, check that Black's pieces are not ready to punish it.
A neighboring idea is King's Indian structure. The King's Indian structure arises when White's pawns on c4, d4 and e4 meet Black's pawns on d6 and e5; once White pushes d5 the center locks, and play splits into a White queenside attack and a Black kingside attack.
Also worth reading is Queenside majority structure. A pawn structure where one side has more pawns on the queenside than the opponent, such as three against two, and can create a passed pawn there while the other side holds a kingside majority.
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Related terms
A pawn majority is a larger number of pawns on one wing or in one area of the board than the opponent has there, giving the chance to create a passed pawn.
A pawn structure where one side has more pawns on the queenside than the opponent, such as three against two, and can create a passed pawn there while the other side holds a kingside majority.
A space advantage means controlling more squares, usually through advanced pawns, so that your pieces have room to maneuver while the opponent has little room and finds it hard to exchange or regroup.
A pawn lever is a pawn that stands in direct contact with an enemy pawn, attacking it so that a capture or exchange is possible and the structure can be opened or damaged.
Dynamic play is a style of handling a position that prizes activity, initiative and fast-changing threats over lasting structural features, accepting concessions such as weaknesses or material in return for time and attacking chances.
The King's Indian structure arises when White's pawns on c4, d4 and e4 meet Black's pawns on d6 and e5; once White pushes d5 the center locks, and play splits into a White queenside attack and a Black kingside attack.
Openings where it occurs
Guides that go further
Most popular chess openings and win rates
The most played openings, how often White wins, and how the numbers change with rating, computed from public games.
What to decide first, the questions to ask, what a first lesson should show and the red flags to avoid.
A game review, a read on your level and a written study plan from George Li.
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