The Park Slope school that’s so desirable that staffers have resorted to playing detective to root out families that gave false addresses to enroll kids there has found one solution to its kindergarten crunch: boot the pre-K kiddies.

School officials yesterday said Brooklyn PS 107’s incoming pre-kindergarten class of 18 tots will be relocated in order to allow a fifth kindergarten class of 25 to move into the highly regarded school.

As of last week, the school had a waiting list of 48 families for kindergarten spots and had not determined the new location for pre-K children.