Play the map and check if the passage is there. Check different sized maps.
just to show the problem with the i * 3 loop:
{F2559883}
```
~/0ad/binaries/system/pyrogenesis -conf=mod.enabledmods:"mod public" -quickstart -autostart="random/unknown" -autostart-seed=1563851758 -autostart-size=256 -autostart-player=-1
```