Unpin
A move that eliminates a pin. With pinning side initiative, this can be done in two ways:
- Direct unpin - withdrawal of the pinning piece off the pin-line;
- Indirect unpin - moving another piece on the pin-line.
With pinned side initiative, this can be done in the following ways:
- Direct self-unpin by capturing a pinning piece;
- Indirect self-unpin by:
- moving another piece on the pin-line;
- moving the king off the pin-line.
See also: Pinning; Abdurahmanovic 1 theme; Onkoud-St German theme.
Bansac, Pierre
Magyar Sakkelet, 1966
1st Prize
h#2 5.1... (4+13)
1.Bf6
Be4
2.d4
Rc1#
1.Bc6
Bb1
2.b2
Ba2#
1.Sf6
Bxh5
2.f2
Be2#
1.d6
Be8
2.Bb5
Bxb5#
1.Se6
Be4
2.Se5
Bxd5#
Indirect unpin of wS (5x).
Kiss, Janos
(corr. Y. Bilokin, 2021)
Schach-Echo, 1975
h#5 (3+15)
1.Bg8
Sxe5
2.Qa8+
Sc6
3.Qa1
Sxd4
4.Rb2
Sxe2
5.Rc1
Sc3#
5 consecutive unpins of wS.
View in Helpmate Analyzer
FEN: 4q3/2n4b/3p2N1/1p2b3/1r1pK1p1/3P1pp1/2p1n3/1k2r3
External links:
- PDB: P0517203