Anti-Fried Liver Defense

The Anti-Fried Liver Defense is a prophylactic reply to the Italian Game. Black wants to develop the king's knight to f6, but after the immediate 3...Nf6 White can answer 4. Ng5, attacking f7 with knight and bishop and steering toward the Fried Liver Attack and related sharp lines of the Two Knights Defense. The pawn move 3...h6 takes g5 away from the knight in advance, so that ...Nf6 can follow without allowing that attack. Unlike 3...Bc5, which also delays ...Nf6 but develops a piece, it does nothing for Black's development.

That cost is what White exploits. In an open game, a move that neither develops nor contests the center is a real loss of time, and the most common and best-scoring answer is 4. d4, striking at e5 at once. Black cannot simply go ahead with the planned knight move: after 4. d4 Nf6 the e5-pawn is lost. Black therefore has to deal with the central tension first, and White gets an open position with a lead in development, the bishop still aimed at f7, and fast castling.

The quieter options are 4. O-O and 4. d3, which together are played about as often as 4. d4. These allow Black to carry out the intended ...Nf6 and reach a normal-looking Italian position, one in which the pawn on h6 is a useful defensive move rather than a wasted tempo, since in slow Italian structures ...h6 is frequently played anyway to keep White's pieces off g5. With 4. d3 White scores slightly worse than with the other two main moves. The engine's preferred continuations are 4. d4, 4. O-O and the preparatory c3, consistent with the idea that White should aim for a central pawn advance while Black is still undeveloped.

The line is mainly an online phenomenon, chosen by players who want to avoid the theory of the Two Knights Defense; on Lichess it ranks among the hundred most frequently reached named positions. The engine gives White a slight advantage, larger than in the main replies to 3. Bc4, though Black's practical results are respectable and White's winning margin in the database is modest.