Ponderchess / Openings
Play the guided film, or select a scene to pause and study its position.
Opening
The Queen's Indian Defense in 3D
1.d4 Nf6 2.c4 e6 3.Nf3 b6. Black fianchettoes the queen's bishop to control e4, leading to solid, strategic positions.
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.
Queen's Indian Defense: Riumin Variation, move by move: d4 Nf6 c4 e6 Nf3 b6 g3 Bb7 …
The white pieces
Contest the long diagonal and aim for e4 under good circumstances.
The black pieces
Control e4 with pieces, and use ...c5 or ...d5 to challenge the centre.
Look a little deeper · 01
White often answers with g3 and Bg2, contesting the long diagonal directly.
Look a little deeper · 02
The Petrosian Variation (4.a3) prevents ...Bb4 before developing.
Queen's Indian Defense: Riumin Variation, move by move: d4 Nf6 c4 e6 Nf3 b6 g3 Bb7 …
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.
