Cờ vua: Bẫy khai cuộc Kieninger trong Gambit Budapet 1925.

 

The Kieninger Trap is a chess opening trap in the Budapest Gambit named after the German International Master Georg Kieninger, who used it in an offhand game against Godai at Vienna in 1925. It is one of the most frequently seen opening traps.

1. d4 Nf6 2. c4 e5!? 3. dxe5 Ng4

The main line of the Budapest Gambit. Black has sacrificed a pawn to disorganize White’s position. In the next few moves, Black tries to regain the gambit pawn, while White tries to hold on to it, at least for the time being.

4. Bf4 Nc6 5. Nf3 Bb4+

Black wants to continue the attack on e5 with …Qe7, but first develops the bishop rather than blocking it in. Now 6.Nc3 Qe7 7.Qd5!?, holding onto the pawn, is playable, but White prefers to avoid doubled pawns.

6. Nbd2 Qe7

Now Black regains the pawn by force, so White tries to obtain the advantage of the bishop pair.

7. a3 Ngxe5!

Simply 7…Bxd2+ was possible, but this move sets the trap. Now White should play 8.Nxe5 Nxe5! 9.e3! Bxd2+ 10.Qxd2 with a small advantage. Capturing the bishop leads to disaster:

8. axb4?? Nd3#

White has been checkmated. If 8.Bxe5 Nxe5 White still cannot play 9.axb4 because of 9…Nd3#.
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