YAXU
      ----------
 UXUU ) YAWQEFAE
       -FUTUA
        =====
         AXQYF
        -TUFUY
         =====
          XXYUA
         -AUQUF
          =====
           UFEWE
          -XUEUQ
           =====
            FUWU

base: 10
symbols: AEFHQTUWXY
difficulty: intermediate
missing: H