Since one bishop starts on a white square,

the other starts on a black square,

and they move only on the diagonal,

each bishop is confined to stay on its original color for the entire game.

This is an important thing to consider once the central pawn

formations have been established,

for if your opponent's pawns are primarily on white squares,

your black-squared bishop can more easily penetrate his ranks.

Also, if your own pawns have settled on mostly white squares,

your white-squared bishop locked up behind them does you little good.

Applying this knowledge to your adversary,

try to capture whichever of his bishops will more easily sneak

through your pawn defense.

As you can see, all bishops are created equal,

but once defensive lines have been drawn, some are more equal than others.