In this 1902 game between Ignatz von Popiel and Georg Marco and there are no additional friendly pieces to come to its defense .
Georg Marco is the black bishop on d4 is pinned to the rook on d7 .
In this 1902 game between Ignatz von Popiel and Georg Marco , the black bishop on d4 is pinned to the rook on d7 , and there are no additional friendly pieces to come to its defense .