-Full detection of repeated positions (including turn)
-In UltimaChess, consider these rules modifications: http://www.inference.org.uk/mackay/ultima/ultima.html
-Reintroduce isAttackedBy in Ultima, and fix it for pawns --> underCheck + stalemate
---> take into account that an immobilized piece does not give check.
-(chameleons cannot be immobilized)
+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