How a player will win in this game, if you cant give check?
Lets say white is in turn 10, he cant check the oponent king.
So, to white be able mate/capture the king in turn 12, black would need to
make changes the board position, by some movement and/or capture on turn
11, and that would then allow white capture king on turn 12.
But the problem is: A player cant put his king in check, and so in turn 11
black would not be able to make this movement that put his king in check.