The Chess Trap Tactic, Example 4:
Part of the Chess Tactics Guide

Chess Tactics Guide
Chess Trap Tactic
[Example 4]

Chess Trap, Example 4
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Chess Trap Tactic, Example 4 The Trap: Magnus Smith Trap

Trap Set By: White

If it Works: [1] Black will continue with his development, advancing the g-Pawn (...g7-g6), to complete the Fianchettoing of the dark-Bishop, and finally getting to Castle the King to safety, so less need to worry about White's Bc4-f7 threat.

However ...

[2] White will begin the process of 'removing the guards', which stand in the way of White's target (trapping and capturing Black's Queen).

The first to go is Black's Nc6, taken care of with a Knight Exchange (Nd4xc6 ...b7xc6).

[3] Next, White needs to open the door to Black's Queen, which is achieved with a Pawn sacrifice (e4-e5 ...dxe5).

[4] The crucial element in the trap is White resisting the temptation to capture the Queen immediately, instead, deferring with an Intermezzo, in a the form of a Bishop Sacrifice, which helps to Deflect Black's King away from the crucial e8-square (crucial, because the King will be the only piece guarding Black's Queen).

The Result: Black's unguarded Queen is Trapped. White's Queen not only captures the Queen, for a gain in material, but also for a positional gain, deep into Black's territory.

Chess Trap, Example 4
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Chess Trap, Example 4
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Chess Trap: Magnus Smith Trap
Trap Set By: White

Moves 1-6 completes the textbook Opening of The Sicilian Defence - Sozin Variation ...

And it's actually on the 6th Move that White sets the Chess Trap, by sending out his King's Bishop, to c4.

If The Trap Works ...

Move 6, Black's g-file Pawn will be advanced, to g6.

One theory for Black opting for this move could be to open a path for his Kingside Bishop, while at the same time, clearing the channel for Castling Kingside.

Anyway, as you'll see, it's a flawed move and one that brings reward, to White, for laying this Magnus Smith Trap ...

Move 7, White's kNight, on the 4th Rank, would capture (x) Black's Knight, on c6; Black's b-file Pawn would retaliate and capture (x) White's Knight, on c6.

Move 8, White's King's Pawn would advance to e5, which would result in a Relative Fork Attack against Black's d-file Pawn and remaining Knight ...

Black's d-file Pawn would then capture (x) White's Pawn, on e5.

Move 9, White's active Bishop would go on the attack, capturing (x) Black's Pawn, on f7 and placing Black's King in "Check" (+) ...

Position after 9. Bxf7+ ...
Lasker Trap, Example 4, Position after 9. Bxf7 check...
That sacrificial move, by White's Bishop, was done deliberately. It was part of a Deflection Tactic, to coax Black's King away from its e8 square, enabling White's Queen to safely capture Black's Queen.

Black's King would then protect itself by capturing (x) White's Bishop, on f7.

But, in doing so, it would vacate the e8 square, where it was offering protection to the Black Queen ...

Move 10, White's Queen would then stride all the way up the Board, to capture (x) Black's Queen, on d8.

White's successful use of the Magnus Smith Trap is all about gaining BOTH a material AND a positional advantage, on the board.

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