Chess Board v2 -Pause edition-

This model was easily cut so the base layer is 2mm thick, and the top layer 1mm. 200x200x3mm
With a pause at the 2.2mm layer line, you can make a color chess board with one filament change, which would not be too hard to do manually at all.
Works great with a white base layer, and black top surface.
Orca and even Cura support pauses, but I used Bambu Studios.
You can also lower the model 0.2-0.6mm to save a few layers, adjusting the paused layer accordingly.

5x top layers, 4x bottom layers, 0.2 layer height, 2x wall, 10-15% infill.