R            NN                      HMMMMMMMMH               HMMM   NN   MMMH          HMM              MMH       HM     HMMMMMMH     MH     HM   HMMM  NN  MMMH   MH   HME  HM            MH  EMH  HM  HME   HMMMMH   EMH  MH HM   HM  HMMENN MMH  MH   MHHM NHM NHM        MHN MHN MHHM NHM NHM        MHN MHN MHHM  H M H MMHNNHMM H M H  MHH M H M H   MMMM   H M H M HH M H  MH          HM  H M HH EMH   MMMH NN HMMM   HME HH   MH     MMMMMM     HM   HH    MMH            HMM    HH     EMMMH  NN  HMMME     HH         MMMMMMMM         HH            NN            H
Infiltration
Run fast and dig well ...
At the innermost chamber, stand on the leftmost or rightmost brick on top and dig the next brick in towards the center. Fall onto the enemy and run right or left, then dig to trap him.  You will have to be quick!
