Blac Chyna’s accusing Kylie Jenner of playing a mean game of hide-and-seek … claiming it’s putting a damper on her lawsuit.

Chyna filed legal docs claiming a member of the Kardashian Klan in particular has continually refused to sit down for a deposition in BC’s case against the family. You’ll recall BC went after the Kardashians claiming they were in cahoots with E! to torpedo her “Rob & Chyna” show.

In docs, obtained by TMZ, Chyna says Kylie’s team has failed to make her available … making it nearly impossible to properly prepare for trial, which is currently slated for October 17. What’s more … Chyna says Kylie’s team has not produced a single document they’ve requested to prep for the case.

BC’s team says they will ask the judge to force Kylie to get to steppin’ if she doesn’t start cooperating.