+Chakart :)
Checkered1 & 2 --> avec switch, coup roi sur roi.
-Chakart
-
-Add problems
-https://www.janko.at/Retros/Glossary/Dynamo.htm
-https://www.janko.at/Retros/Problemkiste/N1995-04.htm#3718
+Ambiguous chess
+https://www.chessvariants.com/mvopponent.dir/ambiguous-chess.html
+[Sittuyin (burmese chess) --> probably not]