The chessboard example on the jwiki gives an example that uses this phrase which suggests to me that CELLCOLOR contains indexes into CELLCOLORS. In the checkerboard case, the only indexes are 0 and 1.
}."1]2|i.8 9 1 0 1 0 1 0 1 0 0 1 0 1 0 1 0 1 1 0 1 0 1 0 1 0 0 1 0 1 0 1 0 1 1 0 1 0 1 0 1 0 0 1 0 1 0 1 0 1 1 0 1 0 1 0 1 0 0 1 0 1 0 1 0 1 http://www.jsoftware.com/jwiki/Scripts/Chess%20Grid Also I found more information in the wiki: http://www.jsoftware.com/jwiki/Grid/Options ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
