Author: Uri Blass
Date: 13:14:50 03/12/04
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On March 12, 2004 at 14:49:28, Steve Maughan wrote: >Amazing! > >I'm amazed at Fruit's score. I've downloaded it and it seems like a robust >engine but I note that it's quite slow and according to the author has little >knowedge above and beyond piece tables. Monarch is my engine. It's nowhere >near as strong as Fruit - I'd estimate Fruit is +200 ELO stronger than Monarch. >Like Fruit, Monarch also has just piece tables and I believe that Monarch is >probably even a little faster than Fruit. Like Fruit Monarch also has Null >move, check extensions and hash table (2 probes) i.e. on paper they seem to be >close in spec. So the question is what makes Fruit so strong? > >a) Fewer bugs - quite possible! >b) ETC - Monarch doesn't have this - Fruit does >c) No PV cut-off's in Fruit >d) Better piece square tables >e) Combination of b, c & d >f) ? > >Of course another explanation is that Fruit is much more sophisticated than the >author claims but I see no reason to think this. > >Any thoughts? > >Steve It has some boolean features. I understood that it also has some pawn structure evaluation. Uri
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