Durbar theme

All moves of White are made with a king.

Pachl, Franz; Müller, Dieter
harmonie, 2003
Prize
FIDE Album 2001-2003

helpmate in 2 moves
b) Qf3->f2
c) Pc2->b5

Kiss theme

Cyclic shift of the keys and mates in 2 or more variations.

Scheme:
1.A 1…a 2.B, 1…b 2.C
1.B 1…a 2.C, 1…b 2.A

complete Kiss theme

Cyclic changes between key and 2 mates in 3 phases.

Scheme:
1.A 1…a 2.B, 1…b 2.C
1.B 1…a 2.C, 1…b 2.A
1.C 1…a 2.A, 1…b 2.B

Caillaud, Michel
1st TT Pat a Mat, 1992-94
1st Prize
FIDE Album 1992-94

mate in 2 moves

Keller paradox

White moves to a square on which an additional guard has just been placed by Black.

Keller paradox 2

Two squares are guarded by at least two black units. Black removes a guard from one guard and White immediately plays to the other.

Iwanow, Eugeniusz; Kapica, Ryszard
J.Knöppel Memorial, Springaren, 1998-99
3rd Prize
FIDE Album 1998-2000

selfmate in 3 moves

Erokhin theme

Scheme:
1.A 1…a 2.B
1.X ~ 2.B, 1…a 2.A

double Erokhin theme

Scheme:
1.A ~ 2.B, 1…a 2.C, 1…b 2.D
1.C ~ 2.D, 1…a 2.B, 1…b 2.A

Gvozdjak, Peter; Lačny, L’udovit
Hlas l’udu, 1988
1st Prize
FIDE Album 1986-88

mate in 2 moves

duel

At least three different moves of one and the same piece followed by three different moves of the other piece of the opposite color.

white-black duel

At least three tries are refuted by three different moves of the same black piece.

black-white duel

At least three black moves followed by different moves of the same white piece.

square-piece duel

At least three moves of black to the same field followed by different moves of the same white piece.

piece-square duel

At least three moves of the same black piece followed by different white moves to the same square.

Stambuk, Sveto
Sahovski vjesnik, 1952
FIDE Album 1945-55

mate in 2 moves