Overloading

Krasenkow–Karpov

	a	b	c	d	e	f	g	h
8									8
7									7
6									6
5									5
4									4
3									3
2									2
1									1
	a	b	c	d	e	f	g	h

Black to play

Overloading is a chess tactic in which a defensive piece is given an additional defensive assignment which it cannot complete without abandoning its original defensive assignment.

This article uses algebraic notation to describe chess moves.

Examples

Krasenkow–Karpov,^[1] in the first round of the 2003 Corus chess tournament, reached the diagrammed position with Black to play. As the white rook on f1 is tied to the defense of the pawn on f3, Black won immediately with 1... Re1, overloading the rook: If 2. Rxe1 or 2. Qc4, then 2... Qxf3#. If 2. Kg2, then similarly, 2... Rxf1 3. Kxf1 Qxf3+ and 4... Qxd5.

An overload was also used in Rotlewi versus Rubinstein.

References

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