Here is what the canvas looks like in Blend:
Create the dynamic controls:
The following C# code does the heavy lifting to dynamically create an ‘offensive player’ (which is really an ellipse) and associated event handlers and is called by the ‘O’ button click event handler.
Remove the dynamic controls:
The following event handler removes the shapes that were dynamically created on the canvas. It assumes the existance of LayoutRoot and a global _shapeCount integer.