Chess Opening Theory/1. d4/1...d5/2. e4/2...dxe4/3. Nc3/3...e5

Blackmar-Diemer Gambit (BDG) rd nd bd qd kd bd nd rd pd pd pd pd pd pd pd pl pd nl pl pl pl pl pl pl rl bl ql kl bl nl rl Blackmar-Diemer Gambit (BDG): Lemberger Countergambit 3... e5 Black has advanced their pawn to e5 and offers a pawn transfer. If White takes the e5 pawn, then Qxd1 forces White to either give up the right to castle with Kxd1 or undevelop the knight with Nxd1. However, there are better options such as Nxe4, encouraging Black to take d4 with the queen and make a queen trade, or Nge2, declining the countergambit and protecting the d4 pawn. Traps The Sneiders attack with Qh5 can lead to a winning position on the 6th move with Nd5?!, with most opponents going Qd7? and blundering Qe5+! and Nxc7!. However, there are players who refute this with a counterattack of their own with Nf6, leading to a queen exchange with both knights capturing the opposing queens. Theory table . 1. d4 d5 2. e4 dxe4 3. Nc3 e5 4 5 6 7 8 Lange Gambit Nxe4 Qxd4 Qxd4exd4 Bf4Bf5 Bd3Bxe4 Bxe4 c6 ⩲ Endgame Variation dxe5Qxd1+ Nxd1Nc6 Bf4 Bf5 Nc3 O-O-O Bb5 Nd4= Sneiders Attack Qh5 exd4 Bc4 Qe7 Nd5?! Qd7?Qe5+! Ne7??Nxc7+! Kd8 + −... ...... ...... Nf6Nxe7 Nxh5Nxc8 Nc6⩲ Blackmar-Diemer Gambit References