I liked the concept of Heikki_Hietala but I wanted to hide the plugs.
In the same idea as I needed to resize them, I made it customizable.
Provided STLs are 30mm sides.
Chess Set Credit : Alien Chess Set from ethanjurman
Instructions
Highly recommanded to print the test part first to check tolerances
For a complete chess board game you will need to print :
-2 times "Corner Color 01"
-2 times "Corner Color 02"
-12 times "Edge Color 01"
-12 times "Edge Color 02"
-18 times "Center Color 01"
-18 times "Center Color 02"
• Download and install latest version of Openscad here. This is an opensource light software (21MB).
• Download the *.scad file and open it with Openscad
• Play with the values in the customizer panel (if it is hide go to view/hide customizer)

• Once you find the value you want/need, press F6 to render…and then F7 to export as STL.
The author marked this model as their own original creation.