Due to the less regular board topolgy I would call it a necessity rather than excessive. There is ample room to show two diagrams side by side where you now show one. Or you could show two piecec in one diagram, marking the target squares for each of those in different colors.
Due to the less regular board topolgy I would call it a necessity rather than excessive. There is ample room to show two diagrams side by side where you now show one. Or you could show two piecec in one diagram, marking the target squares for each of those in different colors.