Saragossa Opening

Named after the Spanish city of Zaragoza (Saragossa). One of the rarest first moves: 1. c3 prepares d4 but does little at once.

It is reached after a single move: 1. c3.

Black is to move and has 20 legal moves. Over the next four moves — two for each side — the game can branch into 222,861 different games. Those games reach 81,659 different positions: most positions can be reached in more than one way, 2.7 on average.

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