Chameleon echo-mates
Echo mates, where squares with the black king are of different colors.
See also: Echo mates.
Grubert, Harald
Schachmaty (Baku), 1990
1st Prize
h#4 b) wSd4→f5
(5+1)
a) 1.Kf1
S4e6
2.Ke2
Kb4
3.Kd3
Sf4+
4.Kd4
Sc6#
b) 1.Kg2
f4
2.Kf3
Se6
3.Ke4
f3+
4.Kd5
Sc7#