Author: Ernst A. Heinz
Date: 13:36:23 01/11/00
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Hi Bruce, >Let's have another thread about the Nolot positions. Yeah -- that is always serious fun! >Here are my results as of now: I put the results of "DarkThought WCCC'99" on a 500MHz Compaq Alpha-21264 XP1000 right behind yours in the table below. "DarkThought" searched each position for 15 min. The "(d = ...)" information specifies the iteration depth at which the program locked onto the solution move. The "[...]" data lists the move "DarkThought" prefers for the positions it does not solve. > DT Ferret DarkThought WCCC'99 > 4x450 500MHz Alpha-21264 > ------ ------ ------------------- >1 6hr 12:25 min (d = 12) >2 2min 31sec / [Bf6] >3 / [Be2] >4 2.5hr / [Be2] >5 2hr / [h4] >6 / [Bd7] >7 6hr / [Rb7] >8 / [Re1] >9 9min / [Rxc5] >10 2min 11sec / [Bb3] >11 5min 48sec 04:32 min (d = 15) BTW, I am amazed how closely the solution times of "Ferret" seem to correlate with those of "Deep Thought": except for position #9, "Ferret" gets exactly those positions right that "Deep Thought" also solved quickly. Maybe, this is another indication for singular extensions working particularly well with this test set. >As of this moment I am starting a run at >two hours per position. Great, I try to do a run with 4h per position later. Cheers, =Ernst= P.S. WWW pages of "DarkThought" at http://supertech.lcs.mit.edu/~heinz/dt/. "Scalable Search in Computer Chess" now at Amazon.de and MKP online. http://www.amazon.de/exec/obidos/ASIN/3528057327/ http://www.mkp.com/books_catalog/3-52805-732-7.asp :-) Visit http://supertech.lcs.mit.edu/~heinz/node1.html for more information about the book.
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