Although most of my photography now is in colour, there are certain times when black and white suits the subject better, particularly in minimalism where high contrast works very well. I do enjoy subjects in strong sunlight and deep shadows as can be seen in this example. More of my black and white minimalism can be found here in my sales gallery.
I very rarely intend to take black and white images deliberately, but sometimes there is so little colour that it just makes sense to convert them to monochrome. In my sales gallery here you will find many examples of my work in this style.