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