Lucena Position

What move is best?

Its White to move.  Obviously White needs to promote the pawn, and they have successfully managed to keep Black's King away from the action, due to the excellent position of the White Rook.  But how do you proceed as White here?   

Show Solution

Solution: 1. Re4 builds the bridge ...!

Building a Bridge ...

Here is a series of moves to show how the bridge is built in what is known as the 'Lucena Position'.     

As usual, any comments are welcome ...