| mountain, to test "can't retreat into mountain"
desi 2,0 ^
edit c 2 c 2,0 s 4 b 640 M 25000 T 100
+| a city for testing canals
+desi 4,0 c
| harbors, 0,2 efficient, 2,2 construction zone
desi 0:2,2 h
edit l 2,2 e 1
| target ships that want to retreat, but can't:
| sunk
edit s 10 U 30 E 20
-| #31 unused
-edit s 10 U 31
+| in canal
+edit s 10 U 31 L 4,0
| crewless
edit s 10 U 32 m 0
| in construction zone
edit s m L -4,4
edit l -6,4 M 100
retr m gg i
+| into canal 4,0
+edit s 10 U 46 L 5,1 U 47 t pt
+fleet n 46/47
+retr n y i
| missions for retreat to clear
miss s 40/41/42 int .
| target ships depth-charges: injured vs. depth-charged, depth-charged,