Author: Mark Rawlings
Date: 08:09:39 04/07/04
Go up one level in this thread
On April 07, 2004 at 09:38:45, Thomas McBurney wrote: >On April 06, 2004 at 10:00:39, Art Basham wrote: > >>[D]5k2/1pp2ppp/5n2/3r4/7Q/r4P2/q5PP/2B1RB1K w - - >> >> >>Novag FORTE takes about 8 minutes to find QxN...! >>Mondial .....38 seconds >>Turbo 432 .....26 sec. >>Super VIP.....1 min, 46 sec. >>Bovag Scorpio......39 seconds > >Here are some results from my own dedicated chess computers... > >Scisys Tandy 1850 - 1 min 45 seconds >Scisys Chess Champion 2150L - 23 seconds > >I also have a Novag Amethyst, a Scisys Tandy 1650, a Fidelity Mini Sensory Chess >Challenger, but I cannot test those because they do not show best move when >thinking. > > >My own chess engine, Kanguruh, found it in 11.6 seconds on an Athlon 650. > >2 52 18 801 h4b4 f8g8 b4a3 >3 35 20 1336 h4b4 f8g8 b4a3 a2f2 >4 50 34 11071 h4b4 c7c5 b4a3 a2a3 c1a3 f8g8 >5 66 79 46326 h4b4 c7c5 b4a3 a2a3 c1a3 f8g8 f1b5 >6 71 379 308247 h4b4 c7c5 b4a3 a2a3 c1a3 f6d7 f1b5 b7b6 >6 72 1161 1036153 h4f6 !! >6 71 4267 3245531 h4f6 a3e3 c1e3 a2a5 f6h4 h7h6 e3f4 >7 381 6906 5636020 h4f6 a3e3 c1e3 a2a5 f6h4 h7h6 e3f4 f8g8 >8 411 33399 26742963 h4f6 !! >8 511 58760 47080153 h4f6 a3e3 c1e3 a2a5 e3d2 d5d7 f6g7 f8g7 d2a5 b7b6 Thought I'd brag a little... My first attempt at chess programming finds it after only 879 million nodes :) Searching: ply nodes eval best move --------------------------------------------------------------------- 1 268 -231 c1a3 2 804 -231 c1a3 a2a3 3 22,961 -52 h4b4 c7c5 b4a3 4 73,024 -52 h4b4 c7c5 b4a3 f8g8 5 1,599,529 -36 h4b4 c7c5 b4a3 a2a3 c1a3 6 6,211,033 -22 f1c4 a3a4 c4d5 a4h4 d5a2 c7c5 7 263,297,402 -4 h4b4 c7c5 b4a3 a2a3 c1a3 b7b6 f1d3 8 879,375,377 299 h4f6 a3e3 c1e3 a2a5 f6h4 b7b5 f1e2 The capture extensions I do increase the node count quite a bit. Also, the only move ordering I currently have is following the best continuation fron the previous ply. Mark
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