to go- s0 n; T }0 k
ask turtles [if any? patches with [pcolor = red and not any? turltes-here] ) e- d: H$ c+ F; O7 E- k 5 f* _" O3 B, h' t[move-to one-of patches with [pcolor = red and not any? turtles-here]] 1 U. _% k5 N# r+ _[move-to one-of patches with [pcolor = blue and not any? turtles-here]]8 f7 j* o% f) v
end