Really involving gameplay! Sometimes AI just ruins all game in one turn e.g. uncapturing pawn under pawn or not spawning needed figure all the game... But actually there are so many conditions like that in chess-based game to do it more playable without undos and to reduce need in this undo-shuffle-style gameplay, so that's definitely not possible to code in 48 hrs. And for me I interpret this game as a genius concept and the flawless proof of one at the same time! And I'm really can't wait some additional tweaks of AI conditions and build for Android to burn some time in trips with this game :)