Drawing a chessboard v3.0

The ImageJ scripting language is really powerful. Here is an application in my series Drawing a chessboard...

Using the Process > Math > Macro..., the script for drawing a chessboard (previously published) is really simplified:

Chessboard_iterator.ijm                                        
+++ IJ snippet +++

+++ end of IJ snippet +++

I couldn' t find another version ... and you?