Queen's Gambit Declined:Harrwitz Attack

It is reached after 7 moves: 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bf4. It is a line of the Queen's Gambit Declined.

Black is to move and has 32 legal moves. Over the next four moves — two for each side — the game can branch into 1,525,664 different games. Those games reach 488,805 different positions: most positions can be reached in more than one way, 3.1 on average.

No later position on this line has a name of its own in the Lichess opening list: the names end here.

The same moves can be played in 36 different legal orders that all reach this position. For example 1. c4 d5 2. d4 e6 3. Nc3 Nf6 4. Bf4, which starts as the English Opening.