Chess Spare Knight was created to replace lost pieces. It is part of special Chess game which is for 3 players. So pices are not black and white but red, blue and green.
I tried to found some similar figure on the 3D portals, but didn't found any similar one.
So I created it in TinkerCad by myself at the end. It is really hard task to made knight figure from solif box as you can see on picture.
Figure consist from two parts, to be printable without support.
Those to parts can be connected together with piece of filament and drop of glue.
The author marked this model as their own original creation.