Vienna Game, Würzburger Trap

The Würzburger Trap is a chess opening trap in the Vienna Gambit. It was named around 1930 for German banker Max Würzburger.

 

1. e4 e5 2. Nc3 Nf6 3. f4

White plays the Vienna Gambit.

3… d5

Thought to be the best reply.

4. fxe5 Nxe4 5. d3

White also has lines beginning 5.Qf3 (Steinitz) and 5.Nf3, but neither achieves an advantage.[1]

5… Qh4+?

Initiating the trap. Black has other choices 5…Bb4 and 5…Nxc3.[2]

6. g3 Nxg3 7. Nf3 Qh5 8. Nxd5 Bg4

8…Nxh1? 9.Nxc7+ Kd8 10.Nxa8 leads to advantage for White.[2]

9. Nf4

White can obtain the better game with 9.Bg2 Nxh1 (9…Bxf3 10.Qxf3 Qxe5+ 11.Kd1 Nxh1 12.Bf4 Qxb2 13.Qe4+ +− Hamann–Schvenkrantz, Germany 1965; 10…Qxf3 11.Bxf3 Nxa1 12.Nxc7+ Kd7 13.Nxa8 Bc5 14.Bxh1 Nc6 15.Bf4± Arhangel’skij–Popov, USSR 1958; Larsen)[3] 10.Nxc7+ Kd7 (10…Kd8 11.Nxa8 Nc6 12.d4 Bxf3 13.Qxf3 Qxf3 14.Bxf3 Nxd4 15.Bg5+ Be7 16.Rd1+−; Larsen)[3] 11.Nxa8 Nc6.[2][4]

9… Bxf3 10. Nxh5 Bxd1 11. hxg3 Bxc2?

Black tries to win a pawn, but instead loses a piece.

12. b3 (see diagram)

The black bishop on c2 is trapped; White can move his king to d2 next turn, attacking it.
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