Originally Posted by jdw_fire
It's not a math problem, it is a logic problem
Oh, so that's my problem. I forgot to mention that I'm not very good at "logic", either. Of all the math classes, trigonometry (sine, cosine, hypotenuse, etc.) was the most difficult for me. I would never make it as a mathematician or engineer. Will try changing the numbers to letters and see if that helps any.
Iswswein: Thanks for the sudoku website. I'll check it out and will tell my sister and friends (who love these puzzles) about the site. Maybe if I practice more, I'll get better?
John Tuttle: Your explanation about logic/math makes sense. I remember when I used to visit my brother-in-law at his office at the University of Washington where he was finishing up his Ph.D. in Theoretical (Astro) Physics. A lot of his research work involved proving theories, and I recall pages of papers he produced with line after line of equations and symbols and lines and squiggles. It did look like a foreign "language". It was definitely all Greek to me.