An idea in a study. White pieces control the squares that black pieces could go to, and as a result they are captured.
Rinck, Henri
La Stratégie, 1920
win
echo
Repetition in different variations of an identical mate (or stalemate) pattern, but shifted, reflected or rotated on a chessboard. The term may have a broader meaning including an identical maneuver, idea, combination, etc.
Chameleon echo – an echo in which a mated king stands on the square of the opposite color.
Tura, Waldemar
E. Iwanow-75
Rozmaitosci Szachowe 2008
1st-2nd Prize
helpmate in 3 moves
b) Nf8->g5
Mat 2021 – 1st TT
The editor of the monthly MAT (the official journal of the Polish Chess Federation) Tomasz Makowski – announces an international formal competition with original helpmates in 2 moves [h#2] – twins formed as a result of taking a white or black piece from a chessboard. Multiple twins [b, c, d etc.], set play and multi solutions are allowed.
Fairy pieces and conditions are not allowed.
3 prizes: 100, 60, 40 euro.
Judge: Krzysztof DRĄŻKOWSKI – national master of chess composition.
Deadline: September 10, 2021.
The director of the competition is GMI Waldemar TURA.
Compositions on diagrams or in notation with the full solution should be sent to the competition director:
The director will present the submitted compositions to the judge in an anonymous form.
The verdict will be announced in the December 2021 issue of MAT and sent electronically to all participants.
An announcement of Mat 2021 thematic tourney (PDF)