to go2 Z. u2 v; u9 ^3 S1 b$ {' k
ask turtles [if any? patches with [pcolor = red and not any? turltes-here] 9 X8 ?+ V$ F* q6 [ 1 t8 z, ^. b$ o5 R: M1 M/ C* R) e[move-to one-of patches with [pcolor = red and not any? turtles-here]]4 d6 A" Y( S4 M: Y: V6 _0 u& W( ^) u
[move-to one-of patches with [pcolor = blue and not any? turtles-here]]8 _! ^: D# h# c/ m, c
end