????????
      +---------
GMXMM | WJANJPAM
       -JGWXG
        =====
        GXUMXP
       -GULNGA
        ======
         GLWLMA
        -UAPJMG
         ======
          GGJLMM
         -GULNGA
          ======
          ??????

base: 10
letters: AGJLMNPUWX
difficulty: intermediate