????????
      +---------
TWWPG | EULUPLWR
       -LTPWR
        =====
        TTQXQL
       -TPREHU
        ======
          RWMWW
         -MMELE
          =====
           RPHHR
          -MMELE
           =====
           ?????

base: 12
letters: EGHLMPQRTUWX
difficulty: medium