-For animation, moves should contains "moving" and "fading" maybe...
-Depth 2 or 3 depending on variant and if we detect smartphone or not?
-(static get SEARCH_DEPTH() { return 2; })
+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