Opposite colored bishop's endgame

 Hi everyone! This is Niranjan V Bharadwaj here and welcome to my first blog post! In today's post, I am going to be talking about a simple concept in chess, the opposite colored bishops endgames. In this endgame, there is one bishop per player and there is a pawn for one side. But, there bishop of one person, say white, is on the dark squares and the bishop of black is on the light squares. For example:

In this position, white wants to promote the pawn. The only problem is that the black bishop is covering one of the squares that the white pawn should cross. The bishop just stays on that diagonal without being captured and the game is a draw.

However if one side has two pawns, that 1 extra pawn can be a major difference. For example,

In this position, white has an extra pawn, and also the bishop cannot cover the two squares at the same time. So, white wins easily. Luckily the white king is also there to support the pawn, so this is a win. Work it out!