A piece moves to a square from where it does not disturb the solution. (Definition from FIDE Album)
A more formal definition of a hideaway move: a unit could hypothetically have been removed from the board instead of being moved to a certain square (the thematic move) and the solution would still be successful. If the unit hypothetically remained on the original square, it would disturb the solution. This means that the thematic move must not be a tempo move. This definition is based on the definitiom of helpmate theme in the 9th WCCT.
Note: In Helpmate Analyzer, in the case of a pawn, the thematic move must not be the only legal move available to it.
Special cases of hideaways are: sacrificial, critical, capturing, checking, self-pinning, promotional hideaways.
See also: Allowing hideaway; Hideaway maneuver.
Feather, Christopher John
Moultings 2, 1991
1.Qh8
Bd3
2.e5
Rd5#
1.Qg8
Be2
2.f5
Re5#
Kirtley, Mark
The Problemist, 1988
1st HM
1.Bh7
Bd8
2.Rg6
Re2#
1.Rh6
Rf2
2.Bg6
Bc7#
Páros, György
Magyar Sakkvilág, 1940
2nd HM
1.b1=S
Bc1
2.d1=S
Bf4
3.f1=S
Qa2#
Shinkman, William A.
Detroit Free Press, 1884 (corr. 1921)
1.Rh1
Rg1
2.Bg8
Rxg8
3.Rxb1
Rxa8#
Pachl, Franz
Schach-Report, 1992
4th Prize
1.Bxe5
Sb4
2.Ke3
Bb6#
1.Sxd5
Sf7
2.Kf3
Qf5#
Morgner, Willy
Schachkongress Teplitz-Schönau im Oktober 1922, 1923
1.Re5
Ba8
2.Be6
Sb7+
3.Kd5
Se7#
Petkov, Petko A.
Shakhmatna Misl, 1990
a) 1.Sxb5
Rd3
2.Kxd3
Sf2#
b) 1.Rbxb3
Rd4+
2.Kxd4
Rc4#
c) 1.Bxc5
Rd5
2.Kxd5
Sf6#
Gurov, Valery
Probleemblad, 2001
1st Prize
1.Qxd2
b6
2.Sxa5
Sb5#
1.Qxa5
f5
2.Sxd4
Bf4#
1.Qxd4
a7
2.Sxd2
Ra6#
Kluxen, Wilhelm
Kniests Schachbriefe, 1943
1.Rh4
Ra8
2.Sg4
Sa7
3.Kxa3
Sxc4#
Gandev, Krasimir
Match Bulgaria-Romania, 1975
1st Place
1.Rf2
c4
2.R8f5
Rc3#
1.Qe4
Rh1
2.Bf5
Qg1#
FEN: 5r2/4K2b/4prq1/8/3n2p1/4k1P1/1pPpp1P1/1QR5
External links:
Semenenko, Valery
Y. Vladimirov-80 JT, Shakhmatnaya kompozitsiya, 2015
5th Prize
1...Bg1
2.f1=S
Bd4
3.g1=B
Kd1
4.Kg2
Ke2
5.Kh2
Kxf1
6.h3
Bxg1#
Paliulionis, Viktoras
4th FIDE World Cup, 2015
2nd Comm.
1.Qb8
Ka5
2.Kb7
Ba3
3.Kc6
Bd6
4.Kd5
Bxb8
5.Kc4
Bd6
6.Kb3
Ba3
7.Ka2
Kb4
8.Ka1
Kb3
9.Sb1
Bb2#
Blaustein, Yeshayahu
Israel Ring Tourney, 1967
2nd HM
1.Qa6
Qf6
2.Bb5
c4#
1.Qa3
Qg5
2.Rb3
c3#
Sobrecases, Guy
Loustau, Jean-Marc
Springaren, 2010
1.Qh8
Ke6
2.Ra8
Kf5
3.Rha1
Kf4
4.Kh1
Kxf3
5.h2
Kf2#
Garai, Toma
Thema Danicum, 1976
Prize
a) 1.Qg1
Sg3
2.Rf1
Se4
3.Ra1
Sc3#
b) 1.Qh8
Sf2
2.Bg7
Sd3
3.Ba1
Sc1#
Fougiaxis, Charalampos Harry
Shahmat, Israel Ring Tourney, 1985
1st Prize
a) 1.Qxc5
Qxe4
2.Se2
Qxa4#
b) 1.Rxd5
Qxc3
2.Sd2
Qf6#
Maslar, Zdravko
feenschach, 1990
3rd HM
1.Sf2
Kxf2
2.d1=S+
Kf3
3.Bf4
gxf4
4.c1=B
Bb1#
Semenenko, Oleksandr
Semenenko, Valery
9th WCCT, 2013
1st Place
1.Sxd3
Rg2
2.Qf6
Rg7
3.d5
Bd7#
1.Sxa4
Rh2
2.Bg4
Rh6+
3.Kf5
Sxd6#
1.Sxc4
Rf2
2.Sfe5
Rf8
3.Qe7
Sf4#
Macleod, Norman Alasdair
Mat (Belgrade), 1983
1.Qxd6
Sd2+
2.Qxd2
Sh4#
1.Qb1
Se1+
2.Qxe1
Sg5#
1.Qh8
Sh4+
2.Qxh4
Sd2#
1.Qg8
Sg5+
2.Qxg5
Se1#
Janevski, Zhivko
Kalkavouras, Ioannis
Mat Plus, 2007
1st Prize
1.Kxd4
Sxe5
2.Qxe5
Qd8#
1.Kxc4
dxc5
2.Rxc5
Qg8#
Gurov, Valery
9th WCCT, 2012
2nd Place
1.Qxg3
Sf6
2.Bh7
g6
3.Rf3
e3#
1.Qxh7
Be5
2.Rg3
f3
3.Bg6
e4#
Bakcsi, György
Sahs/Shakhmaty (Riga), 1961
2nd Prize
1.Sxe2
Rxg7
2.dxe5
Rf7#
1.Sh5
Rg6
2.Bxe5
Bc2#
1.Se4
Rg4
2.Sxe5
Rf4#
Csák, János
Mat-Pat, 1988
4th Prize
1.Se5+
Kg3
2.Qf5
Sd5#
1.Sf6+
Kf3
2.Qe6
Sg6#
Semenenko, Valery
Chorno-bili stezhyny, V. Stankevich-85 JT, 2016
3rd Prize
1...Rxc1
2.Kg6
Rxd1
3.c1=R
Rxe1
4.d1=S
Rxf1
5.e1=R
Rg2#
Kramár, Tibor
Olympic Tourney "Novi Sad", 1990
2nd HM
1.Bh7+
Bc3+
2.Rd4+
c7#
1.Rh6+
c7+
2.Bb5+
Bc3#
Ruppin, Rafael
Problem, 1956
2nd Prize
1.Qb8
Kg7
2.Bc7
f8=Q
3.Bh2
Qf1#
1.Qb2
Ke8
2.Rc2
f8=Q
3.Rh2
Qf3#
Csák, János
Meeting of Solidarity, 1989
1st Prize
1.Sc3
Sxg6
2.Sxg6
Rg7#
1.Sf6
Sxf3
2.Sxf3
Rc3#
Heinonen, Unto
Springaren, 1998
3rd Comm.
1.Sh4
Sc4
2.Kxc4
Qg8#
Maslar, Zdravko
(after D. Hersom)
The Problemist, 1986
1.h1=R
Kxf3
2.e1=S+
Kg3
3.Bg4
f4
4.d1=B
f5
5.Bh6
f6
6.c1=S
f7
7.Qh7
f8=Q
8.b1=B
Qf6#
Doré, Marcel
Themes-64, 1957
Spec. Prize
1.Bc1
Rxa7
2.Qa1
Rb8#
Chlubna, Friedrich
Schach-Echo, 1975
Comm.
1.Qh6
f6
2.Bb8
f7
3.Rg3
f8=Q+
4.Rg8
Qxh6#
1.Bc7
Kb7
2.Qe5
f6
3.Rh3
f7
4.Rh7
f8=Q#
Leck, Jakob
Sick, Oliver
Die Schwalbe, 2019 (v)
1.Rh1
Bxh1
2.c1=R
Be4
3.Bd3
Kxd3
4.b1=B+
Kd2
5.Sc4+
Kxc1
6.Ra3
Bxb1#