I did just that. I found it helpful to visually represent the fact that 4 of the 5 female pieces were assigned in the case of the contrapositive (though, that's also true of the original conditional).
Thank you for putting it all into perspective. Beyond being determined to destroy the test, it's nice to know that the habits one must develop along the way will be useful down the road (and dedication, hard work, and sacrifice needed here are likel…