http://prntscr.com/hy4ich
When you choose "play against the machine" and you input a set up position, you can see that the window that appears has no "x" in the upper right corner in order to close this window.
When you choose "play against the machine" and you input a set up position, you can see that the window that appears has no "x" in the upper right corner in order to close this window.