to go 3 o3 F% k- e8 @# N# y$ Z, ~# Zask turtles [if any? patches with [pcolor = red and not any? turltes-here]% z& Q; c8 R8 g5 |, c
j7 q- f4 j, j; {8 M9 d" R( M[move-to one-of patches with [pcolor = red and not any? turtles-here]]+ B" J+ o P" A4 }8 w6 N
[move-to one-of patches with [pcolor = blue and not any? turtles-here]]/ t+ V. [% x& M$ Q" y. c) Y
end