The act of pinning an enemy (or own) piece. It can happen directly, when the pinning piece moves to the pin-line, or indirectly, when the pinning side moves a masking unit off the pin-line.

Pinning of a piece can happen in six different ways. Firstly, there are two main categories: 1) pinning of an opponent's piece, and 2) self-pin. Former can take place in the following ways:

The latter can be carried out in the following ways:

See also: Unpin.

Janevski, Zhivko

Kotelec, 1987

Example: Pinning
h#2 4.1... (7+15)

1.Se4 d4+ 2.Kxd5 Qxd7#
1.Kd4 Qxb6 2.e5 Rxb4#
1.exd5 Be4 2.d4 Qe7#
1.f5 dxe6 2.dxe6 d4#

View in Helpmate Analyzer

FEN: q1rQ4/3p1pp1/1p2p3/1RbPk2n/1p3p2/1P2p1n1/2KP4/5r1B

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