Ponderchess / Openings
Play the guided film, or select a scene to pause and study its position.
Opening
The Benko Gambit in 3D
1.d4 Nf6 2.c4 c5 3.d5 b5. Black gives a queenside pawn for lasting pressure on the half-open a- and b-files, which often persists into the endgame.
Rebuild the sequence yourself. The board responds to each move, and hints are available.
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Your turn · white to play
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Benko Gambit: Zaitsev System, move by move: d4 Nf6 c4 c5 d5 b5 cxb5 a6 …
The white pieces
Consolidate the extra pawn: castle, keep a2 and b2 protected, and use a4, Nd2-c4 or Nb5 to blunt the queenside pressure. The e4-e5 break is the main active plan.
The black pieces
Pile up on the a- and b-files with ...Qa5, ...Rfb8 and ...Nbd7-b6, and use the g7 bishop on the long diagonal. Trading queens is often fine for Black, because the queenside pressure remains.
Look a little deeper · 01
In the accepted lines, 4.cxb5 a6 5.bxa6 Bxa6, Black follows with ...g6, ...Bg7, ...d6 and ...O-O. The rooks go to a8 and b8, and the queen often to a5 or b6, aiming at a2 and b2.
Look a little deeper · 02
One main line runs 6.Nc3 d6 7.e4 Bxf1 8.Kxf1 g6 9.g3 Bg7 10.Kg2: White trades the light-squared bishops and tucks the king away by hand. In the Fianchetto Variation White castles normally after g3 and Bg2.
Look a little deeper · 03
White can avoid the main lines. 5.Nc3, the Zaitsev System, lets Black regain the pawn with 5...axb5 in return for central play with e4, and 4.Nf3 and 4.a4 decline the gambit altogether.
Benko Gambit: Zaitsev System, move by move: d4 Nf6 c4 c5 d5 b5 cxb5 a6 …
Keyboard: Space pauses, the arrow keys step. Gold arrows are White's moves, violet are Black's, red rays are threats, green shows support, blue shows plans.
