Vienna Game

After 1.e4 e5 2.Nc3, White develops the queen's knight before the king's knight. The knight defends e4 and controls d5, and it leaves the f-pawn free to advance, so f4 can strike at Black's e5-pawn in the spirit of the King's Gambit. Black's main replies are 2...Nf6, which attacks e4 and prepares ...d5, and 2...Nc6, which keeps the position closer to an ordinary open game.

Four lines are covered. The Mieses Variation, 1.e4 e5 2.Nc3 Nf6 3.g3, fianchettoes the king's bishop to g2, where it presses on d5 and the long diagonal. 1.e4 e5 2.Nc3 Nf6 3.Bc4 Nc6 4.d3 is a quieter set-up: White supports e4 with the d-pawn, aims the bishop at f7 and often follows with f4 later. The Vienna Gambit, 1.e4 e5 2.Nc3 Nf6 3.f4 d5, is the sharpest branch. Black answers the attack on e5 with a counter-strike in the centre, and after exchanges on d5 and e5 White often gains space with a pawn on e5 and play on the f-file. 1.e4 e5 2.Nc3 Nc6 3.Bc4 brings the bishop out at once, and both sides fight over d5 and f7.

The quieter lines usually reach slow positions with pawns on d3 and e4 against e5. White chooses between the f4 break and steady manoeuvring, while Black looks for ...d5 or ...f5. The gambit lines open files early and put both kings under closer watch. Start with "Vienna Game: Mieses Variation", the page's first video, then compare its fianchetto structure with the Bc4 and f4 lines.