????????
      ----------
MGUMW ) GRRTURMY
       -URWUP
        =====
        MLUURR
       - FWXLL
        ======
          YXRRM
         -PQUYW
          =====
           YGPYY
          -PQUYW
           =====
           ?????

base: 12
symbols: FGLMPQRTUWXY
difficulty: medium