How to create a chess board with just one line of Rebol (I splitted t in 3 lines for beginers) :
Title: "Chess board"
Purpose: "Displays an empty chess board"
g:[style b box black 50×50 style w b white space 0×0 ]
loop 8 append g head reverse/part [b w b w b w b w return] 8 ]
view layout g