The Würzburger Trap is a chess opening

Chess opening

A chess opening is the group of initial moves of a chess game. Recognized sequences of opening moves are referred to as openings as initiated by White or defenses, as created in reply by Black. There are many dozens of different openings, and hundreds of named variants. The Oxford Companion to...

 trap

Chess trap

- List of chess traps :Ordered by chess opening:*Albin Countergambit – Lasker Trap*Blackmar-Diemer Gambit – Halosar Trap*Bogo-Indian Defence – Monticelli Trap*Budapest Gambit – Kieninger Trap...

 in the Vienna Gambit.
It was named around 1930 for German

Germany

Germany , officially the Federal Republic of Germany , is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km2 and has a largely temperate seasonal climate...

 banker Max Würzburger.

The trap begins with the moves

1. e4 e5

2. Nc3 Nf6

3. f4

White plays the Vienna Gambit. Black's next move is thought to be the best reply.

3. ... d5

4. fxe5 Nxe4

5. d3 Qh4+

6. g3 Nxg3

7. Nf3 Qh5

8. Nxd5 Bg4

9. Nf4 Bxf3

10. Nxh5 Bxd1

11. hxg3 Bxc2?

Black tries to win a pawn

Pawn (chess)

The pawn is the most numerous and weakest piece in the game of chess, historically representing infantry, or more particularly armed peasants or pikemen. Each player begins the game with eight pawns, one on each square of the rank immediately in front of the other pieces...

, but instead loses a piece.

12. b3 (See diagram)

The black bishop

Bishop (chess)

A bishop is a piece in the board game of chess. Each player begins the game with two bishops. One starts between the king's knight and the king, the other between the queen's knight and the queen...

on c2 is trapped, and next turn white can move his king to d2, attacking the bishop.