absolute pin

English

	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

There is an absolute pin on the black knight as moving it would illegally expose the black king to check from the white bishop.
There is a relative pin on the white knight as moving it would allow capture of the white queen by the black rook.

Noun

absolute pin (plural absolute pins)

1. (chess) A pin in which moving away the pinned piece would illegally expose the king to check.

See also

• relative pin
• partial pin

Further reading

• Pin (chess) on Wikipedia.Wikipedia