| Two Knights: Chigorin Gambit
1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 is the 2 knights defense, which I play sometimes. A common move here is 4.Ng5, which virtually wins a pawn by force. Black has some options like the traxler counter, but that will probably give white advantage. Most players move 4...d5, blocking the bishop, and after 5.exd5, inexperienced players make the dubious move of 5...Nxd5?!. Against weak or beginning players, play probably continues 6.Nxf7?! Kxf7 7.Qf3ch Ke6, the fegatello. However, this is not best for white, and black can defend. Much better is the lolli attack with 6.d4!, which you can look up, but I am writing this to tell black players: instead of 5...Nxd5?!, the best move is just to gambit the pawn with 5...Na5!, and after 6.Bb5ch (naturally, trying to keep the pawn, d3 is the morphy attack), black's most common reply is c6. Then 7.dxc6 bxc6 white should retreat the bishop. 8.Be2 (FM Schiller suggests 8.Qf3 first, which is playable too).
Here black is a pawn down, but the position is =. Black has better development and has the initiative. White hopes to defend and use the extra pawn in an endgame, but that is still far away. Beginners who play 2 knights should study this opening. It is very dynamic and both sides have chances.