NQLG
      +---------
EJNXT | THWNXTLT
       -TWYQN
        =====
         JTWNT
        -QYXHN
         =====
         EJCLQL
        -EQXNWQ
         ======
           NQHHT
          -YTQWC
           =====
            XYXT

base: 12
letters: CEGHJLNQTWXY
difficulty: intermediate
restrictions: no multiplication