En passant has been added. I find if it is legal by making sure the pawn capturing is on its fifth rank and the pawn being captured is moved 2 forward. Thats all I need for en passant (also only available for the first go it is there). I also made my program more efficient by ensuring I only rely on an array for finding what piece is on an index and drawing. Everything else uses bitboards which helps me fully utilise bitboards. I now have 2 things left: 50 move rule and Insufficient Material. Both of these end in a draw and are the last things I need for my program to have all the rules of chess! Next I will add the 50 move rule