What is the safe opening for Level 27?

Dispatch red 24 first and orange 40 second, then follow the side group that has actually reached the outlet.

When should I touch the question-mark buses?

Wait until the surrounding route has opened and a departure has created space; the hidden buses are queue blockers, not shortcuts.

Bus Fever Party level guide

hard 6 colors

Red 24 then orange 40 open the squared double loop. Purple stays sealed behind the top band, so a lower-row bus or ? bus sent now just parks.

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Dispatch red 24, then orange 40, and let the left red and orange blocks open before filling another regular bay.
Use the next blue or red dispatch when its side group reaches the outlet, allowing the 32 and high-30s counters to create departures.
Bring purple into the holding row after the upper purple band opens; leave the black question-mark buses in the queue.
Follow the route through the large yellow lower bend and green and blue side arms, recycling a bay after each departure.
Clear the shrinking purple, red, and orange tail, then take the late yellow and blue groups as they touch the outlet.
Finish the last side pocket, then wait for the final bus to leave.

Colors in this level:

Blue, Green, Orange, Purple, Red, Yellow

Probing a question-mark bus before red and orange has released a holding-row bay.
Selecting a lower-row color while the matching route group is still sealed behind the upper loop.

Protect the first two bays for red and orange.
Leave the question-mark buses alone until their surrounding route color is exposed.
Use departures to reach purple and yellow instead of stacking same-color buses early.

Board notes 5 details

Layout: The squared double-loop has red across the top-left, orange on the left vertical, purple across the top-right, yellow on the lower bend, and green and blue side arms. The opening row shows red 24 and orange 40. The queue contains a long colored row plus black question-mark blockers near both sides.
Goal: Use the red and orange opening to release a bay, then reach the purple top band and yellow lower bend without probing hidden question-mark buses too early.
Opening: Dispatch red 24, then orange 40. Use the next blue or red bus only when its side group touches the outlet, then bring purple forward after the top band opens.
Danger Zone: Selecting a black question-mark bus or a lower-row color before red and orange has created space can occupy the holding row while the purple and yellow route remains sealed.
Mechanics: The route contracts from a squared double-loop into a shallow U and then into small side pockets.

What is the safe opening for Level 27?
Dispatch red 24 first and orange 40 second, then follow the side group that has actually reached the outlet.
When should I touch the question-mark buses?
Wait until the surrounding route has opened and a departure has created space; the hidden buses are queue blockers, not shortcuts.