Author: Jouni Uski
Date: 22:59:50 11/05/02
Here's part of interview: We would like to get a short charactarization of Ruffian. Where do you see the strong points, and where do you feel that there is room for improvement? Do you think that Ruffian prefers longer time controls or do you think it does a better job at blitz? How do you assess its value for long-time-analysis like some correspondance chess players use. Does Ruffian need large hashtables? Maybe you can give some suggestions about the optimum hashsizes when using Ruffian for the different time controls? Per-Ola Valfridsson (Ruffian): As you have noticed, Ruffian is a "fast searcher" I also estimate ruffians endgame as quite strong. Ruffian also has some weak spots for example: no knowledge about pawn storms, opposite castle or center control. The opening book could also be improved. There is no optimal hash size, use as mush memory you can. I don't see any problem as long as you avoid swapping. I have no reason to believe that Ruffian will do any worth or better at longer time controls. I havn't done any test, I'm too impatient. 15. Interview team: What programming language have you used to write Ruffian? C++ or is most of the code in Assembler? Per-Ola Valfridsson (Ruffian): Ruffian is written in C with portability and performance in mind. The intel version is boosted with some inline assembler. So the secret for strong play is still SPEED. Jouni
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