Sicilian Defense:Grand Prix Attack

White plays an early f4 for a kingside attack. It is named after the British weekend Grand Prix tournaments of the 1980s, where it was a favourite.

It is reached after 5 moves: 1. e4 c5 2. Nc3 Nc6 3. f4. It is a line of the Sicilian Defense.

Black is to move and has 26 legal moves. Over the next four moves — two for each side — the game can branch into 724,021 different games. Those games reach 239,395 different positions: most positions can be reached in more than one way, 3 on average.

The Lichess opening list names 1 further line after this position, such as Schofman Variation (3... g6 4. Nf3 Bg7 5. Bc4 e6 6. f5).

The same moves can be played in 6 different legal orders that all reach this position. For example 1. Nc3 c5 2. e4 Nc6 3. f4, which starts as the Van Geet Opening.