Author: Will Singleton
Date: 23:52:40 03/23/03
Go up one level in this thread
On March 24, 2003 at 02:25:33, Bernhard Bauer wrote:
>On March 24, 2003 at 02:07:31, Will Singleton wrote:
>
>>Position from Baron – Amateur bm Qxc2
>>[D]2rr3k/pb3ppp/4p3/4P3/1n1B3R/1P4P1/P1q4P/1Q1RKB2 w - - 0 30
>>
>>For some reason, Ruffian and Crafty have a very tough time with this one. I
>>wonder whether this could be due to some similarity between them. A problem in
>>repetition detection, perhaps? On my machine, amd 1.6ghz:
>>
>> Fail-low solution
>>Yace 0:15 0:20
>>CM 0:15 0:30
>>Shredder 0:35 0:45
>>Amateur 0:20 0:50
>>Ruffian 2:34 3:54
>>Crafty 5:42 > 9 minutes
>>
>>---------------------------------
>>[Event "Computer chess game"]
>>[Site "MICRON"]
>>[Date "2003.03.23"]
>>[Round "1"]
>>[White "The Baron 0.99.5a"]
>>[Black "Amateur 2.44"]
>>[Result "0-1"]
>>[TimeControl "40/600"]
>>
>>1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Be7 5. Bg2 O-O 6. Qc2 c6 7. O-O Nbd7 8.
>>Nbd2 b6 9. e4 Bb7 10. e5 Ne8 11. b3 Rc8 12. Bb2 c5 13. Rac1 cxd4 14. Nxd4
>>Kh8 15. Rfe1 Nc7 16. cxd5 Nxd5 17. Qb1 Nc5 18. Red1 Qd7 19. Ne4 Rfd8 20.
>>Ne2 Qb5 21. Nd4 Qa6 22. Nxc5 Bxc5 23. Bf1 Qa5 24. Rc4 b5 25. Nxb5 Qxb5 26.
>>Rh4 Bxf2+ 27. Kxf2 Qc5+ 28. Bd4 Qc2+ 29. Ke1 Nb4 30. Bxa7 Qc3+ 31. Kf2 Qf3+
>>32. Kg1 Qh1+ 33. Kf2 Qf3+ 34. Kg1 h5 35. Rd6 g5 36. Rh3 Rxd6 37. exd6 Rc2
>>38. Qxc2 Nxc2 39. d7 Qd5 40. Bb6 Qxd7 41. Rxh5+ Kg7 42. Rxg5+ Kf6 43. Rb5
>>Qd1 44. a3 Bc6 45. Rb4 Nxb4 46. g4 Nd3 47. Bd4+ Ke7 48. Bc5+ Nxc5 49. h4
>>{Baron resigns} 0-1
>
>Crafty 19.3 needs 28 sec on an AMD 1,8 GHz. So I can't see a very tough time.
>Regards
>Bernhard
Very interesting. I was using Crafty 19.1. I just ran the position on 19.2 and
19.3, confirming your results with 19.3. 19.2, however, behaves likes 19.1,
taking several minutes. I'm off to check the source changes.
Crafty 19.2
-----------
White(1): analyze
clearing hash tables
time limit 2:36 (24:23)
depth time score variation (1)
6 0.26 -1.10 1. Bxa7 Rxd1+ 2. Qxd1 Qxa2 3. Rxb4
Qxa7 4. Qd4 Qa5
6-> 0.41 -1.10 1. Bxa7 Rxd1+ 2. Qxd1 Qxa2 3. Rxb4
Qxa7 4. Qd4 Qa5
7 0.94 -0.76 1. Bxa7 g5 2. Rc4 Qxh2 3. Rxd8+ Rxd8
4. Bf2 Nd5
7-> 1.06 -0.76 1. Bxa7 g5 2. Rc4 Qxh2 3. Rxd8+ Rxd8
4. Bf2 Nd5
8 2.36 -0.85 1. Bxa7 Rxd1+ 2. Qxd1 Qxa2 3. Rxb4
Qxa7 4. Qd4 Qa5 5. Kf2 Qc7
8-> 2.84 -0.85 1. Bxa7 Rxd1+ 2. Qxd1 Qxa2 3. Rxb4
Qxa7 4. Qd4 Qa5 5. Kf2 Qc7
9 6.34 -0.81 1. Bxa7 Rxd1+ 2. Qxd1 Qxa2 3. Rxb4
Qxa7 4. Rd4 Qb6 5. Rc4 Qe3+ 6. Qe2
Qxb3 7. Rxc8+ Bxc8
9-> 7.24 -0.81 1. Bxa7 Rxd1+ 2. Qxd1 Qxa2 3. Rxb4
Qxa7 4. Rd4 Qb6 5. Rc4 Qe3+ 6. Qe2
Qxb3 7. Rxc8+ Bxc8
10 20.12 -- 1. Bxa7
10 23.55 -1.44 1. Bxa7 Qc3+ 2. Kf2 Qf3+ 3. Kg1 h6
4. Rd6 Rxd6 5. exd6 Qh1+ 6. Kf2 Rc2+
7. Qxc2 Qf3+ 8. Kg1 Nxc2
10-> 30.46 -1.44 1. Bxa7 Qc3+ 2. Kf2 Qf3+ 3. Kg1 h6
4. Rd6 Rxd6 5. exd6 Qh1+ 6. Kf2 Rc2+
7. Qxc2 Qf3+ 8. Kg1 Nxc2
11 56.92 -1.07 1. Bxa7 Qc3+ 2. Kf2 Qf3+ 3. Kg1 h6
4. Rd6 Rxd6 5. exd6 Qh1+ 6. Kf2 Rc2+
7. Qxc2 Qf3+ 8. Kg1 Nxc2 9. d7 Qf6
11-> 1:05 -1.07 1. Bxa7 Qc3+ 2. Kf2 Qf3+ 3. Kg1 h6
4. Rd6 Rxd6 5. exd6 Qh1+ 6. Kf2 Rc2+
7. Qxc2 Qf3+ 8. Kg1 Nxc2 9. d7 Qf6
12 2:00 -1.30 1. Bxa7 Qc3+ 2. Kf2 Qf3+ 3. Kg1 h6
4. Rd6 Rxd6 5. exd6 Qh1+ 6. Kf2 Rc2+
7. Qxc2 Nxc2 8. Bc5 Qf3+ 9. Kg1 Ne3
10. Bd3
12-> 2:25 -1.30 1. Bxa7 Qc3+ 2. Kf2 Qf3+ 3. Kg1 h6
4. Rd6 Rxd6 5. exd6 Qh1+ 6. Kf2 Rc2+
7. Qxc2 Nxc2 8. Bc5 Qf3+ 9. Kg1 Ne3
10. Bd3
13 2:27 -- 1. Bxa7
13 5:08 -2.02 1. Bxa7 Qc3+ 2. Kf2 Qf3+ 3. Kg1 h6
4. Rd6 Rxd6 5. exd6 Rc2 6. Qxc2 Nxc2
7. Bc5 Ne3 8. Bh3 Be4
13 8:48 -1.81 1. Qxc2 Nxc2+ 2. Kf2 g5 3. Rg4 Rc7
4. Rd2 h5 5. Rxg5 Nxd4 6. Bg2 Bxg2
7. Kxg2 h4 8. gxh4
Crafty 19.3
-----------
White(1): analyze
clearing hash tables
time limit 2:36 (24:23)
depth time score variation (1)
6 0.25 -1.10 1. Bxa7 Rxd1+ 2. Qxd1 Qxa2 3. Rxb4
Qxa7 4. Qd4 Qa5
6-> 0.39 -1.10 1. Bxa7 Rxd1+ 2. Qxd1 Qxa2 3. Rxb4
Qxa7 4. Qd4 Qa5
7 0.91 -0.76 1. Bxa7 g5 2. Rc4 Qxh2 3. Rxd8+ Rxd8
4. Bf2 Nd5
7-> 1.03 -0.76 1. Bxa7 g5 2. Rc4 Qxh2 3. Rxd8+ Rxd8
4. Bf2 Nd5
8 2.31 -0.85 1. Bxa7 Rxd1+ 2. Qxd1 Qxa2 3. Rxb4
Qxa7 4. Qd4 Qa5 5. Kf2 Qc7
8-> 2.78 -0.85 1. Bxa7 Rxd1+ 2. Qxd1 Qxa2 3. Rxb4
Qxa7 4. Qd4 Qa5 5. Kf2 Qc7
9 6.25 -0.81 1. Bxa7 Rxd1+ 2. Qxd1 Qxa2 3. Rxb4
Qxa7 4. Rd4 Qb6 5. Rc4 Qe3+ 6. Qe2
Qxb3 7. Rxc8+ Bxc8
9-> 7.13 -0.81 1. Bxa7 Rxd1+ 2. Qxd1 Qxa2 3. Rxb4
Qxa7 4. Rd4 Qb6 5. Rc4 Qe3+ 6. Qe2
Qxb3 7. Rxc8+ Bxc8
10 20.12 -- 1. Bxa7
10 22.85 -2.64 1. Bxa7 Qc3+ 2. Kf2 Qf3+ 3. Kg1 h6
4. Rd6 Rxd6 5. exd6 Qh1+ 6. Kf2 Rc2+
7. Qxc2 Qf3+ 8. Kg1 Nxc2
10 38.06 -1.85 1. Qxc2 Nxc2+ 2. Kf2 g5 3. Rg4 Rc7
4. Be2 Rcd7 5. Bxa7 Rxd1 6. Bxd1 Rxd1
7. Rxg5
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