-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)
+Beautify styles
+Translations ? (probably not)
+Fill some puzzles: http://www.logicmazes.com/games/puz1to4.html