CXX
       +---------
WUUWLX | XXXWLUXC
        -WUUWLX
         ======
         MXLXXCX
        -MWUWCUC
         =======
          MLMLCLC
         -MWUWCUC
          =======
           CMCULU

base: 6
letters: CLMUWX
difficulty: easy