Guys, please click on the full screen button .

 Basically u can use any piece in the standard chess game (chess v1.0) by pressing the key corresponding to  it ('q' for queen, 'r for rook) and u can use its characteristic moves to kill enemies that spawn randomly and each kill would be considered as a single score. So carefully think about where to use which piece. 

I also have a seed thing, where the random spawns would be the same for two games with the same seed (as seeds in minecraft) so it can be made a multiplayer game where after a player there is a reset button to reset the board, and it also logs your score and time and players can manually compare them.

 the game kinda takes some time to actually render as its on the web so it would be a bit unresponsive at first.