????????
      ----------
RYCXR ) CPHCRTTX
       -XWXQX
        =====
         QWUJT
        -QJCQQ
         =====
          GUCQT
         -GQCPG
          =====
           PYPJX
          -RYCXR
           =====
           ?????

base: 12
symbols: CGHJPQRTUWXY
difficulty: medium