(In reply to re(2): computer aided solution.... to be expanded
I am far away from home and not sure whether there are more solutions that make the three digits (7,8,4) into letters strictly from set (irk tlm ue) .
At least TUMMY, TELLS & TELLY (not mentioned by you) qualify.
Telly(noun) - an electronic device that receives television signals and displays them on a screen; "the British call a tv set a tel.
But nothing in the d4 puzzle precludes words like TWEED, *ORRY (*=W or S), provided no more than 3 new letters are added (8 digits in the alphametic and "$" in the coded word leave you only 3 "free" choices).
2. tweed(noun )- : a rough, woolen cloth that is woven with different colored threads.
I think that very slight modification of your program (like possible choices of the double letter or the positions of vowels) will allow you to fully solve the puzzle.
Edited on June 8, 2014, 10:36 am