??????
     +-------
YENR | PPPYYN
      -JQXJ
       ====
        RJEY
       -NMNW
        ====
        YQJFN
       -YRRYP
        =====
        ?????

base: 11
letters: EFJMNPQRWXY
difficulty: hard
hints: J << N, P << W