-Beautify styles
-Translations ? (probably not)
-Fill some puzzles: http://www.logicmazes.com/games/puz1to4.html
+Checkered chess: need another FEN element, last non-capturing checkered move (if applicable)
+ + need to stack these indicators for alpha beta search
+MarseilleChess: revise bot and test
+Translations (including About page), refresh rules