Ponderchess / Openings
See the pawn structure behind a classical opening.
White challenges d5 with c4.
Black supports the centre with ...e6.
Develop pieces while watching the c8 bishop's route.
Play the guided film, or select a scene to pause and study its position.
Opening
The Queen's Gambit Declined in 3D
The Queen's Gambit is not a real gambit. White offers the c-pawn to lure Black's d-pawn away from the centre.
Rebuild the sequence yourself. The board responds to each move, and hints are available.
Click or drag to move · Arrow keys + Enter to play
Your turn · white to play
Select a piece, then its destination. Switch to 2D for a clear overhead view or rotate the 3D board to explore the position.
A solid wall on d5, and the pin that tests it.
The white pieces
Pressure d5 and the queenside, develop with Nc3, Bg5 or Bf4, and choose between the minority attack and a central e4 break.
The black pieces
Stay solid, complete development, and time ...c5 or ...e5 to release the position.
Look a little deeper · 01
Black's main challenge is the light-squared bishop, hemmed in by the pawn on e6. Freeing breaks with ...c5 or ...e5 solve most problems.
Look a little deeper · 02
After an exchange on d5, the Carlsbad structure appears. White often plays the minority attack, advancing b4-b5 to create a weak pawn on Black's queenside.
Look a little deeper · 03
Popular systems include the Orthodox Defence, the Tartakower Defence (...h6 and ...b6) and the Ragozin.
A solid wall on d5, and the pin that tests it.
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.
Make the idea yours
No timer. No score. Just a moment to check your understanding.
