Author: Tord Romstad
Date: 07:48:10 02/02/04
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On February 02, 2004 at 10:30:16, Robert Hyatt wrote: >There are some "impressions" I get when playing other programs. IE with >my dual xeon, when playing "deep shredder" I always have the feeling that >Shredder knows everything my program knows, but searches deeper. I win >some games, but it always feels like I am pushing a bus uphill to make any >progress. (Snip) >The new hiarcs seems to feel a lot like shredder, (Another big snip) >The search never "crumbled" as sometimes happens on my xeon when my >opponent has better hardware and a better search too (shredder/hiarcs for >example). This raises the obvious question: What do Shredder and Hiarcs do to achieve the bus pushing effect without having a massive hardware advantage? How are they able to outsearch strong and (NPS-wise) much faster programs like Crafty? They do forward pruning, of course, but I wish I had a better idea of precisely what tricks they use. One of the many reasons I look forward to the Palm OS version of Hiarcs is that I will finally have the chance to play with the engine myself and see if I can figure out some of its secrets. Tord
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