?????????
      +----------
ELQPH | HNLMNGJXR
       -HMXNYM
        ======
         XMXLYJ
        -JPEJWQ
         ======
          MPRENX
         -MJGRLR
          ======
           ERMPMR
          -EMHHHP
           ======
           ??????

base: 13
letters: EGHJLMNPQRWXY
difficulty: intermediate