Logic9 (Sudoku) is well received

At the wake of my father-in-law, I met many friends and relatives. I introduce Logic9 (Sudoku) to them.

All of them (young and old) were interested in the puzzle, especially the three tips that I gave to them on solving the difficult puzzles.

Most of them have seen the puzzle before, but they did not know how to solve them. They enjoyed the puzzles, after learning my tips.

I was surprised that many young people were not familiar with the puzzle, although it has appeared in Today paper and MyPaper for a few months. When I taught an elderly lady, she became so engrossed in the puzzle that she spent a few hours on it.