Author: Robert Hyatt
Date: 17:50:37 07/09/99
Go up one level in this thread
On July 09, 1999 at 16:25:45, Chris Carson wrote: >On July 09, 1999 at 16:13:37, Robert Hyatt wrote: > >>I was doing some testing today, and happened to pick wac230 as one of several >>test cases to do some profiling with. I was quite surprised to get the >>following on my quad xeon: >> >> 15-> 25.00 1.76 1. ... Rh7 2. Rb1 a4 3. Ba3 Bb7 4. >> Kf4 Kd7 5. f3 Bc6 6. Rb2 Rh1 7. Bd6 >> Rc1 8. Bb4 Rh1 <HT> >> 16 37.14 1.77 1. ... Rh7 2. Rb1 a4 3. Bc5 Rh5 4. >> Kg4 Ba6 5. Bd6 Bb7 6. Ra1 Kb5 7. Rb1 >> Rh2 8. Kg3 Rh5 <HT> >> 16 0:59 ++ 1. ... Rb4!! >> (2) 16-> 1:28 2.15 1. ... Rb4 >> 17 2:08 1.94 1. ... Rb4 2. cxb4 a4 3. b5+ Kxb5 4. >> Rb1 c3 5. Ba3 Kc4 6. Rh1 Bd7 7. Rd1 >> c2 8. Rd2 Kc3 9. Bc1 a3 10. Rxc2+ bxc2 >> 11. Bxa3 Kxd4 >> 17-> 2:11 1.94 1. ... Rb4 2. cxb4 a4 3. b5+ Kxb5 4. >> Rb1 c3 5. Ba3 Kc4 6. Rh1 Bd7 7. Rd1 >> c2 8. Rd2 Kc3 9. Bc1 a3 10. Rxc2+ bxc2 >> 11. Bxa3 Kxd4 >> 18 3:29 ++ 1. ... Rb4!! >> 18 6:47 2.88 1. ... Rb4 2. cxb4 a4 3. b5+ Kxb5 4. >> Rb1 c3 5. Ba3 Kc4 6. Kg4 Kxd4 7. Rc1 >> Kd3 8. Rd1+ Kc2 9. Rc1+ Kd2 10. Rh1 >> Ke2 <HT> >> 18-> 6:54 2.88 1. ... Rb4 2. cxb4 a4 3. b5+ Kxb5 4. >> Rb1 c3 5. Ba3 Kc4 6. Kg4 Kxd4 7. Rc1 >> Kd3 8. Rd1+ Kc2 9. Rc1+ Kd2 10. Rh1 >> Ke2 <HT> >> >> >> >>This is the first time Crafty has found this position... and as a result, it >>can now find all 300 within 60 seconds, for the first time (it has been 'stuck' >>on 299 for a year). >> >>I remembered Jouni asking about this position a while back. now the answer is >>'yes' someone can get this one. Cray Blitz got it very quickly, but because of >>some eval differences + singular extensions. It is now just within Crafty's >>grasp (although there is no guarantee it won't become impossible again as I >>make other changes..:) ) >> >>Bob > >Hip, Hip, Hurray!!!!!! :) > >Great work!!!!!! I assume this is Crafty 16.12? > >Best Regards, >Chris Carson yes... although you might try 16.11 to see what happens. Don't go more than one ply deeper than I went however... as if it doesn't find it by then, it won't find it for a while I guess...
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