[en] The reactions antipp→3π-3π+ and antipp→3π-3π+π0 have been studied at 1.00 1.04 and 1.13GeV/c incident momentum. Total cross-sections and angular distributions are presented. The contributions of the various intermediate states to the final states have been determined by the maximum-likelihood method. The most important intermediate states results to be epsilon epsilonrho in the 6π annihilation and apsilonrhodeg in the 7π annihilation