Author: Jeremiah Penery
Date: 16:35:52 12/04/03
Go up one level in this thread
On December 04, 2003 at 18:07:37, Dann Corbit wrote: >On December 03, 2003 at 23:50:42, Robert Hyatt wrote: > >>On December 03, 2003 at 20:42:57, Jeremiah Penery wrote: >> >>>On December 03, 2003 at 19:54:49, Robert Hyatt wrote: >>> >>>>On December 03, 2003 at 19:37:13, Jeremiah Penery wrote: >>>> >>>>>On December 03, 2003 at 16:22:27, Robert Hyatt wrote: >>>>> >>>>>>On December 03, 2003 at 15:54:45, Tord Romstad wrote: >>>>>> >>>>>>>On December 03, 2003 at 14:59:03, Robert Hyatt wrote: >>>>>>> >>>>>>>>=====================10 seconds per position======================== >>>>>>>>test results summary: >>>>>>>> >>>>>>>>total positions searched.......... 300 >>>>>>>>number right...................... 299 >>>>>>> >>>>>>>That's really impressive, even considering the fast hardware. The last >>>>>>>time I tried, I got 289/300 at 1 second/position, 293/300 at 3 seconds, >>>>>>>294/300 at 5 seconds, 295/300 at 10 seconds, and 298/300 at 20 seconds. >>>>>>> >>>>>>>The remaining two positions, number 100 and 230, are *never* solved. >>>>>>>I can let my program analyse for hours, but it still doesn't find >>>>>>>the solutions. In both positions, it thinks it is winning, but >>>>>>>never finds the right moves. >>>>>> >>>>>>I have gotten 230 in the past, but when I made some passed pawn changes of >>>>>>some sort, it went away. But even back then it took several minutes to choose >>>>>>the rook toss... >>>>> >>>>>If you compile with the #define DETECTDRAW it will find almost instantly that >>>>>any move other than Rb4 is a blocked position draw. :) >>>> >>>>Have you tried it already? I'll give it a whirl tonight when I get home.. >>>> >>>>Although the opteron seems to be down right now. They were installing a >>>>firewall, so I might be dead until tomorrow. >>> >>>Yes, I wrote that code, remember? :) >> >>Yes I remembered. :) I was specifically talking about it with respect to >>WAC 230. I remembered some results from some of those stupid positions >>with the pawn locked where one side offers a rook that should not be >>taken. :) >> >>I didn't know it also worked on wac 230. > >It detects the potential draw, but does not help to solve WAC.230: It works fine for me: Crafty v19.6 White(1): easy pondering disabled. White(1): epdlrec wac.epd 230 Black(1): analyze Analyze Mode: type "exit" to terminate. clearing hash tables time surplus 0.00 time limit 22.50 (3:30) depth time score variation (1) 1 0.00 -2.91 1. ... a4 1-> 0.00 -2.91 1. ... a47 2 0.00 -- 1. ... a4 2 0.00 -0.01 1. ... a4 2. Ba3 2-> 0.00 -0.01 1. ... a4 2. Ba3 3 0.01 -0.01 1. ... a4 2. Ba3 Bd7 3-> 0.01 -0.01 1. ... a4 2. Ba3 Bd7 4 0.01 -0.01 1. ... a4 2. Ba3 Bd7 3. Rb1 4 0.01 ++ 1. ... Kb5!! 4 0.01 -2.06 1. ... Kb5 2. Ba3 Ka4 3. Bc5 4-> 0.01 -2.06 1. ... Kb5 2. Ba3 Ka4 3. Bc5 5 0.02 -2.16 1. ... Kb5 2. Kf4 Rf7+ 3. Ke3 Rf5 4. Be7 5-> 0.02 -2.16 1. ... Kb5 2. Kf4 Rf7+ 3. Ke3 Rf5 4. Be7 6 0.02 -2.03 1. ... Kb5 2. Ba3 Ka4 3. Bc5 Rf7 4. f3 6-> 0.03 -2.03 1. ... Kb5 2. Ba3 Ka4 3. Bc5 Rf7 4. f3 7 0.04 -2.17 1. ... Kb5 2. Kf4 Rh7 3. f3 Rh4+ 4. Kg3 Rh5 5. Kf4 7-> 0.05 -2.17 1. ... Kb5 2. Kf4 Rh7 3. f3 Rh4+ 4. Kg3 Rh5 5. Kf4 8 0.09 -2.20 1. ... Kb5 2. f3 Rf7 3. Ba3 Ka4 4. Bd6 Bd7 5. Bc5 8 0.16 -2.32 1. ... Rh7 2. Rb1 Rh5 3. Kg4 Kb5 4. Ba3 Ka4 5. Bb2 8-> 0.17 -2.32 1. ... Rh7 2. Rb1 Rh5 3. Kg4 Kb5 4. Ba3 Ka4 5. Bb2 9 0.21 -2.38 1. ... Rh7 2. Rb1 Rh5 3. Kg4 Kb5 4. Rb2 Ka4 5. Kf4 Rh2 9-> 0.22 -2.38 1. ... Rh7 2. Rb1 Rh5 3. Kg4 Kb5 4. Rb2 Ka4 5. Kf4 Rh2 10 0.29 -- 1. ... Rh7 10 0.33 -2.21 1. ... Rh7 2. Rb1 Rh5 3. Kg4 Kb5 4. Ba3 Bd7 5. Kf4 Ka4 6. Bb2 10 0.53 -2.25 1. ... Kb5 2. Rb1 Rf7 3. Ba3 Bd7 4. Rb2 Ka4 5. Bc5 Bc6 6. f3 10-> 0.54 -2.25 1. ... Kb5 2. Rb1 Rf7 3. Ba3 Bd7 4. Rb2 Ka4 5. Bc5 Bc6 6. f3 11 0.71 -2.27 1. ... Kb5 2. Rb1 Rf7 3. Ba3 Rf5 4. Kg4 Rxf2 5. Rb2 Ka4 6. Kg3 Kxa3 7. Rxf2 11-> 0.81 -2.27 1. ... Kb5 2. Rb1 Rf7 3. Ba3 Rf5 4. Kg4 Rxf2 5. Rb2 Ka4 6. Kg3 Kxa3 7. Rxf2 12 1.04 -1.99 1. ... Kb5 2. Rb1 Rf7 3. Ba3 Rf5 4. Kg4 Rxf2 5. Rb2 Ka4 6. Rxf2 Kxa3 7. Kf4 12-> 1.24 -1.99 1. ... Kb5 2. Rb1 Rf7 3. Ba3 Rf5 4. Kg4 Rxf2 5. Rb2 Ka4 6. Rxf2 Kxa3 7. Kf4 13 1.62 -2.16 1. ... Kb5 2. Rb1 Rf7 3. Ba3 Rf5 4. Kg4 Rxf2 5. Rb2 Ka4 6. Rxf2 Kxa3 7. Kf4 Bd7 13-> 1.96 -2.16 1. ... Kb5 2. Rb1 Rf7 3. Ba3 Rf5 4. Kg4 Rxf2 5. Rb2 Ka4 6. Rxf2 Kxa3 7. Kf4 Bd7 14 2.45 -- 1. ... Kb5 14 2.73 -0.01 1. ... Kb5 2. Rb1 Rf7 3. Ba3 Rf5 4. f4 Ka4 5. Bb2 Bd7 6. Ra1+ Kb5 7. Kg4 a4 8. Kh4 Rxf4+ 9. Kh3 a3 14 11.86 -1.18 1. ... Rb4 2. cxb4 a4 3. Rb1 c3 4. Rc1 b2 5. b5+ Kxb5 6. Ba3 bxc1=Q 7. Bxc1 Kc4 8. Be3 a3 9. Kf4 Kb3 14-> 12.04 -1.18 1. ... Rb4 2. cxb4 a4 3. Rb1 c3 4. Rc1 b2 5. b5+ Kxb5 6. Ba3 bxc1=Q 7. Bxc1 Kc4 8. Be3 a3 9. Kf4 Kb3 15 15.01 1/16? 1. ... Rb4 It performs identically in game mode.
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