Fun checker board designed to use 8mmX3mm magnets in the board and in the checkers to keep them attached to the board. The print file for the board includes the pause at layer 31 to insert the magnets, I also changed colors at this layer on my single color printer. If you do not want to use the magnets just enable support and the void will fill in. 

Print Settings 

Filament - Black PLA + Matte Purple PLA

Infill - 15% 

Nozzle Temp - 210C

Bed Temp - 60C

Support - None

Layer Height - 0.2mm