??????
    --------
PXH ) RHFQQG
     -RYT
      ===
       QCQ
      -FGX
       ===
        HTQ
       -FGX
        ===
        YQTG
       -YGFQ
        ====
        ????

base: 11
symbols: CFGHMPQRTXY
difficulty: medium
missing: M