Amar Opening

Also called the Paris Opening, after Charles Amar, a Parisian player of the 1930s. The knight goes to the edge of the board, where it does less than on f3.

It is reached after a single move: 1. Nh3.

Black is to move and has 20 legal moves. Over the next four moves — two for each side — the game can branch into 198,502 different games. Those games reach 72,406 different positions: most positions can be reached in more than one way, 2.7 on average.

The Lichess opening list names 3 further lines after this position, such as Paris Gambit (1... d5 2. g3 e5 3. f4).