Step 1 created the app and step 2 put a view on screen. Now let’s draw the 8x8 chess board. We need to create a file to put our code in.
Click “Chess” folder on the left navigation panel and it turns blue. Right click to show the menu.
Select “New File…” to create a new file.
Select “Cocoa Touch Class” under “iOS”. Then click “Next” button to continue.