They very seldom do this, but they are departing runway 33L 33R and 9. Landing 26L and 26R. I’ve seen them do this awhile back an it makes it a good snapshot. Spacing shouldn’t be an issue.
Occasionally, O’Hare will operate with some very odd configurations. I have seen traffic departing 27L and 9L simultaneously which is probably the most unique. They also have some other strange configurations which are not as dramatic.
