Self-block
A piece moves to the square in its own king's field and blocks him. The opposite side takes advantage of it.
Distant self-block is a spacial case of a self-block when the blocked square lies outside the king's immediate field.
Passive self-block. The self-blocking piece does not move, but either the king moves or both pieces are static.
See also: Distant self-block; Blocking piece replacement; Pseudo Stocchi blocks; Stocchi blocks; Bukovina theme; Chernous theme; Chumakov theme; Feather 2 theme.
Sonnenfeld, Felix Alexander
Schach-Echo, 1976
1.Rxg3
Rb1
2.Rxg5
Rf1#
1.Bxd2
Bf1
2.Bxg5
Bh3#
1.h6
d3
2.hxg5
dxe4#
1.Se6
Sg6
2.Sxg5
Sh4#
Paliulionis, Viktoras
Chorno-bili stezhyny, V. Chornous-85 JT, 2018
1st Prize
1.Rf7
Be6
2.Ke4
Bg4
3.Rd4
Kc2
4.Bd3+
Kd1
5.Qe5
Ke1
6.Sf4
Kf2
7.Rf5
Bf3#
1.Bc4+
Kb4
2.Re2
Bg8
3.Re6
Bh7
4.Kd5
Kc3
5.Qd6
Kd2
6.Se5
Ke3
7.Rc5
Be4#