????????
      +---------
YGQMY | GQXQYYNM
       -YGQMY
        =====
        QNQMJY
       -QXXWPM
        ======
         MRQYXN
        -MYJNXL
         ======
          XMUJLM
         -LRYXUX
          ======
          ??????

base: 12
letters: GJLMNPQRUWXY
difficulty: easy