Thanks zentara

for the canvas hint, maybe it would speed-up the averall program too. I have the tendece to use new-to-me Perl's tool, like Tk, starting with the simplest solution that my brain can formulate. So, rereading the tk windows manager documentation the 50th time, i realized the shortcut offered by grid and buttons solution. With this tendence every big project of mine is worth to be rewrite after enlightments received from around.

About the clickable hexagonal grid.. i'm without words: i have printed it and i'll enjoy the reading in the next quite moment.

I'll really appreciate comments, hints and critics from all other monks here around especially math fu ones.

L*