Mexican Defense Trap

Black gets a winning position on move 6

Club A50 Winning advantage Springs the trap: Black

Mexican Defense (A50) is a real game that ended in a trap. On move 6, White played 6.Nd2? — a natural-looking move — and Black replied 6...Nd3+. The result: Black gets a winning position on move 6.

Watch the trap, then test yourself

The moves, one by one

  1. 1.
  2. 2.
  3. 3.
  4. 4.
  5. 5.
  6. 6.

Tap a move to jump to it. The red move is the mistake.

Why the trap works

The mistake 6.Nd2 looks harmless, but it allows 6...Nd3+. No piece is lost immediately, but the trapper gets a clearly winning position. With this single move the engine evaluation swings by roughly 11.1 pawns in Black’s favour.

How to avoid it

Instead of 6.Nd2, safe options are Nxe5, Qb3, Bf4, Bg5. The habit that saves you: before every natural-looking move, ask what your opponent’s best reply is — here it is 6...Nd3+.

How to set it

Playing Black? Follow the moves above up to move 6, then wait for 6.Nd2. If your opponent finds Nxe5 instead, just keep playing sound chess and look for the next chance.

Trap facts

Opening
Mexican Defense
ECO code
A50
Difficulty
Club
Springs the trap
Black
The mistake
6.Nd2?
The punishment
6...Nd3+
Safe moves
Nxe5, Qb3, Bf4, Bg5
Game
Venert - Mechkarov (1970)
Position before the mistake (FEN)
r2qkb1r/ppp1pppp/3p1n2/3Pn3/2P3b1/2N2N2/PP2PPPP/R1BQKB1R w KQkq - 1 6

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Frequently asked questions

What is the Mexican Defense trap?

Mexican Defense (A50) is a real game that ended in a trap. On move 6, White played 6.Nd2? — a natural-looking move — and Black replied 6...Nd3+. The result: Black gets a winning position on move 6.

How do you avoid the Mexican Defense trap?

Instead of 6.Nd2, safe options are Nxe5, Qb3, Bf4, Bg5. The habit that saves you: before every natural-looking move, ask what your opponent’s best reply is — here it is 6...Nd3+.

How fast does the Mexican Defense trap win?

Black gets a winning position on move 6, after White falls for 6.Nd2.


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