HQYT
    +-------
FYR | NHQXHP
     -TUN
      ===
       TWX
      -JMG
       ===
       FPQH
      -FMRP
       ====
        FLGP
       - PNY
        ====
         FMY

base: 15
letters: FGHJLMNPQRTUWXY
difficulty: hard