Create battle system mode so that it may be possible that the attacked piece could take out the attacking piece although weighted toward attacking piece, rank, and experience points. Imagine Zelda style zap into fight sequence with either turn based or real time FPS battle. Give attacker first hit. A pawn trying to capture a queen may not be the best idea. A bishop vs. bishop would be determined by skill in the battle system. Every time a particular piece wins a battle it increases experience points which increases that chance of critical hits or additional hit styles with more HP taken. Combine Chess with RPG in 3D display.