Anticipatory self-unpin
A piece makes a move to prevent a possible pin of another piece of the same side.
See also: Anticipatory pin; Anticipatory unpin; Anticipatory self-pin.
Alias: Pin prevention.
Feather, Christopher John
Macleod, Norman Alasdair
Magyar Sakkélet, 1980
1st Prize
h#2 b) bKc5→c4
(5+11)
a) 1.Sxh5
Rg6
2.Sc3
Qc4#
b) 1.Sxg8
Qf3
2.Sc7
Rc5#
Zappas, Byron
Sabra Tourney, 2001
1st-2nd Prize
h#2 b) bKf6→f7
(4+8)
a) 1.Qc2
Se5
2.Qf5
Scd7#
b) 1.Qd8
Sd7
2.Qe8
Sce5#
Baier, Roland
Benidorm TT, 1990
2nd Prize
h#2 b) wKe2→d5
(4+11)
a) 1.Rg6
Kd3
2.Bg5
Sg3#
b) 1.Bh4
Kd4
2.Rg5
Sf6#