FPME
      +---------
RQQQM | GRUYQGRL
       -UQQQE
        =====
        ERULGG
       -EEQQGT
        ======
         FUMNPR
        -FTQQUW
         ======
           MNLML
          -RQQQM
           =====
           FNLMQ

base: 13
letters: EFGLMNPQRTUWY
difficulty: hard