All Chess Positions Open the map

A45Opening

Trompowsky Attack

1. d4 Nf6 2. Bg5

a8b7c6d5e4f3g2h1

Black to move

Legal moves
21
Games in the next 4 moves
476,585
Different positions among them
164,358
Named lines from here
9

See it on the mapOn the opening map

Named after the Brazilian champion Octávio Trompowsky. 2. Bg5 attacks the f6 knight at once.

It is reached after 3 moves: 1. d4 Nf6 2. Bg5.

Black is to move and has 21 legal moves. Over the next four moves — two for each side — the game can branch into 476,585 different games. Those games reach 164,358 different positions: most positions can be reached in more than one way, 2.9 on average.

The Lichess opening list names 9 further lines after this position, such as Edge Variation (2... Ne4 3. Bh4) and Classical Defense (2... e6).

No other order of these moves reaches this position: each move depends on the one before.

Map of every game of the next four moves after the Trompowsky Attack
Every game of the next four moves from this position, as the map draws it. Each ring is one more move; the outer ring holds all 476,585 games.

Move by move

  1. 1. d4Queen's Pawn Game
  2. 1... Nf6Indian Defense
  3. 2. Bg5Trompowsky Attack

Named lines from here

Related openings

FEN

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