by DATR » Wed Dec 21, 2011 10:54 am
Almost all the problems come from real games. Every week I analize the Week In Chess PGN files to find interesting tactical positions from the major world wide chess tournaments.
For more than 2 years I have had at least one computer, and often more than one, running software written by me analizing games 24 hours a day for 7 days a week!