This is how I chose to light my chessboard.
As shown in the image above, the lighting setup comprises two spot lights and one area light.
Two spot lights of complementary colours are diametrically opposed, casting lights on opposing profiles of two legions of pieces. I aim to show the dramatic animosity as if it’s a cartoon. Additionally area lamp with full specter is placed in the middle of the field to connect these two lighting bubbles. I think specter means how much ambient colour of the light affects the local colour of the board.
I also learnt that items such as lights and cameras can’t have modified property data applied.