French Defense:King's Indian Attack

It is reached after 3 moves: 1. e4 e6 2. d3. It is a line of the French Defense.

Black is to move and has 30 legal moves. Over the next four moves — two for each side — the game can branch into 937,550 different games. Those games reach 300,285 different positions: most positions can be reached in more than one way, 3.1 on average.

The Lichess opening list names 3 further lines after this position, such as Franco-Hiva Gambit (2... f5) and Reversed Philidor Formation (2... d5 3. Nd2 Nf6 4. Ngf3 Nc6 5. Be2).

The same moves can be played in 2 different legal orders that all reach this position. For example 1. d3 e6 2. e4, which starts as the Mieses Opening.