???????
     ---------
JQUJ ) YRRUEQL
      -RUYR
       ====
       WWRRE
      - RUYR
       =====
        JWRXQ
       -QYLEX
        =====
         QTWTL
        -QJYJQ
         =====
         ?????

base: 11
symbols: EJLPQRTUWXY
missing: P
difficulty: medium