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Subject: Re: Comet Analysis under SCID

Author: Ulrich Tuerke

Date: 12:00:18 06/11/02

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On June 11, 2002 at 13:40:50, Steve Coladonato wrote:

>On June 11, 2002 at 12:34:01, Ulrich Tuerke wrote:
>
>>On June 11, 2002 at 12:12:09, Steve Coladonato wrote:
>>
>>>Here's the analysis for a position arising out of a Milner-Barry line of the
>>>French Defence.  I opened up two desktops on Linux and in one ran SCID using
>>>crafty for analysis and in the other used Comet for the analysis.  I hope I have
>>>the correct syntax to get the diagram to display.  It took Comet a lot longer
>>>than Crafty to get to depth 11 and the line it is displaying is not good for
>>>black.
>>>
>>>Steve
>>>
>>>[D] r3kbnr/1p1b1ppp/p3p3/3pP3/3q4/2NB4/PP3PPP/R1BQ1R1K b kq - 0 11
>>>
>>> Crafty-18.13
>>> Depth:       11      Nodes: 38180437 (122495 n/s)
>>> Score:    -0.90      Time:    311.69 seconds
>>> 11. ... Be7 12. f4 Nh6 13. Qe2 O-O 14. Be3 Qb4 15. Rac1 d4 16. a3 Qc5
>>>
>>> 3 -1.27  11. ... Qxe5 12. Re1 Qf6 (0.04)
>>> 4 -0.87  11. ... Qxe5 12. Re1 Qd4 13. Qe2 (0.05)
>>> 4 -0.87  11. ... Qxe5 12. Re1 Qd4 13. Qe2 (0.16)
>>> 5 -1.01  11. ... Qxe5 12. Re1 Qd6 13. Bg5 Nf6 (0.18)
>>> 5 -1.01  11. ... Qxe5 12. Re1 Qd6 13. Bg5 Nf6 (0.37)
>>> 6 -0.85  11. ... Qxe5 12. Re1 Qd6 13. Bd2 Nf6 14. Rc1 (0.46)
>>> 6 -1.02  11. ... Bb4 12. Qe2 Bxc3 13. bxc3 Qxc3 14. Bd2 Qc5 (1.36)
>>> 6 -1.02  11. ... Bb4 12. Qe2 Bxc3 13. bxc3 Qxc3 14. Bd2 Qc5 (1.56)
>>> 7 -0.88  11. ... Bb4 12. f4 Bxc3 13. bxc3 Qxc3 14. Rb1 b5 15. Be3 (3.77)
>>> 7 -0.97  11. ... Nh6 12. f4 Rc8 13. Ne2 Qc5 14. Bd2 Nf5 (6.74)
>>> 7 -0.97  11. ... Nh6 12. f4 Rc8 13. Ne2 Qc5 14. Bd2 Nf5 (7.44)
>>> 8 -0.92  11. ... Nh6 12. Bxh6 gxh6 13. f4 Rc8 14. Qc2 Ba3 15. bxa3 Rxc3 (10.86)
>>> 8 -1.02  11. ... Bb4 12. Rb1 Qxe5 13. Re1 Qd6 14. Qg4 Qc5 15. Qe2 (21.43)
>>> 8 -1.02  11. ... Bb4 12. Rb1 Qxe5 13. Re1 Qd6 14. Qg4 Qc5 15. Qe2 (23.35)
>>> 9 -0.71  11. ... Bb4 12. Ne2 Qxe5 13. Qb3 Qd6 14. a3 Bc5 15. Qxb7 Bc6 (45.39)
>>> 9 -0.92  11. ... Nh6 12. Be3 Qxe5 13. Re1 Qd6 14. Rc1 d4 15. Ne4 Qe5 (62.49)
>>> 9 -0.93  11. ... Rc8 12. f4 Nh6 13. Ne2 Qc5 14. b4 Qc7 15. Qd2 Nf5 (71.48)
>>> 9 -0.93  11. ... Rc8 12. f4 Nh6 13. Ne2 Qc5 14. b4 Qc7 15. Qd2 Nf5 (73.37)
>>> 10 -0.78  11. ... Rc8 12. f4 Nh6 13. Ne2 Qc5 14. b4 Qxb4 15. Rb1 Qa5 16. Rxb7
>>>Qxa2 (83.49)
>>> 10 -0.84  11. ... Be7 12. f4 Nh6 13. Re1 Qf2 14. Re2 Qh4 15. g3 Qg4 16. Rd2
>>>Qxd1+ 17. Rxd1 (145.50)
>>> 10 -0.84  11. ... Be7 12. f4 Nh6 13. Re1 Qf2 14. Re2 Qh4 15. g3 Qg4 16. Rd2
>>>Qxd1+ 17. Rxd1 (178.45)
>>> 11 -0.90  11. ... Be7 12. f4 Nh6 13. Qe2 O-O 14. Be3 Qb4 15. Rac1 d4 16. a3 Qc5
>>>(244.93)
>>> 11 -0.90  11. ... Be7 12. f4 Nh6 13. Qe2 O-O 14. Be3 Qb4 15. Rac1 d4 16. a3 Qc5
>>>(311.69)
>>>
>>>COMET-B46
>>>Depth:       11      Nodes: 44858323 (1274 n/s)
>>
>>The n/s looks peculiar. So, it took 10 hrs to reach this depth ?
>
>NO.  It took between 10 and 15 mins. to get to this depth.  I wasn't watching
>closely but it was about 2-3 times what it took crafty to get there.

This could be okay. Comet looks to many more nodes per iteration than Crafty.

However look at the analysis of the B.46 DOS exe (K6/450).

Comet-B.46    Tue Jun 11 21:03:24 2002

depth	score	  sec	  nodes		  pv
 1.	+2.11	    0	      821	 d4e5
 2.	+1.82	    0	     2397	 f8b4  d1e2  b4c3  b2c3  d4c3
 3.	+1.95	    0	     7362	 d4e5  f1e1  e5d4
 4.	+1.82	    0	    13241	 f8b4  d1e2  b4c3  b2c3  d4c3
 4.	+1.82	    0	    24885	 f8b4  d1e2  b4c3  b2c3  d4c3
 5.	+1.76	    0	    45195	 f8b4  a2a3  b4a5  d1e2  a5c3  b2c3  d4c3
 5.	+1.76	    1	    79838	 f8b4  a2a3  b4a5  d1e2  a5c3  b2c3  d4c3
 6?	+1.62	    1	   107812	 f8b4  d1e2  b4c3  b2c3  d4f2
 6?	+1.35	    3	   243750	 f8b4  f2f4  b4c3  b2c3  d4a4
 6.	+1.29	    5	   384157	 f8b4  f2f4  g8e7  d1e2
 6.	+1.29	    6	   448879	 f8b4  f2f4  g8e7  d1e2
 7!	+1.42	    6	   529311	 f8b4  f2f4  g8e7  c1d2
 7.	+1.45	    7	   592174	 f8b4  f2f4  g8e7  c3e2  d4c5  c1d2  f7f5
 7.	+1.63	    8	   680819	 d4e5  f1e1  e5d6  d1b3  d7c6  c1g5  f8e7
 7.	+1.63	    9	   782412	 d4e5  f1e1  e5d6  d1b3  d7c6  c1g5  f8e7
 8?	+1.49	   10	   834465	 d4e5  f1e1  e5d6  d1b3  d6h2  h1h2  g8f6
 8.	+1.45	   22	  1779677	 d4e5  f1e1  e5d6  d1b3  d7c6  h1g1
 8.	+1.45	   24	  1936205	 d4e5  f1e1  e5d6  d1b3  d7c6  h1g1
 9!	+1.58	   39	  3270488	 d4e5  f1e1  e5d6  d1b3  d7c6  e1e6  f7e6
 9!	+1.85	   68	  5678830	 d4e5  f1e1  e5d6  d1b3  d7c6  e1e6  f7e6
 9?	+1.85	   69	  5756175	 d4e5  f1e1  e5d6  d1b3  d7c6  c1d2  g8f6
 9.	+1.85	   76	  6347649	 d4e5  f1e1  e5d6  d1b3  d7c6  c1d2  g8f6
10?	+1.71	   79	  6605750	 d4e5  f1e1  e5d6  d1b3  d7c6
10.	+1.66	  136	 12205057	 d4e5  f1e1  e5d6  d1b3  d7c6  h1g1  f8e7
10.	+1.66	  137	 12234960	 d4e5  f1e1  e5d6  d1b3  d7c6  h1g1  f8e7

==> My Move: d4e5 in 2:17

I suspect very much that I have compiled some mixture of old and new sources on
the linux machine, perhaps new c- and old h-files.  -:)

So, this should really be named Comet-XXX. I wonder how it plays.

Uli

>>
>>
>>>Score:    -1.32      Time:  35187.00 seconds
>>>d4e5!  f1e1  e5d6  d1b3  d7c6  h1g1  g8f6  d3h7
>>>
>>> 6 -0.91  f8b4?  f2f4  b4c3  b2c3  d4c3  a1b1  b7b6  b1b6  c3e5 (137.00)
>>> 6 -0.84  f8b4  f2f4  b4c3  b2c3  d4c3  a1b1  b7b5  c1b2 (287.00)
>>> 6 -0.84  f8b4  f2f4  b4c3  b2c3  d4c3  a1b1  b7b5  c1b2 (325.00)
>>> 7 -0.84  f8b4  f2f4  b4c3  b2c3  d4c3 (437.00)
>>> 7 -0.97  d4e5!  f1e1  e5d6  d1b3  d7c6  c3a4  g8e7  d3a6 (487.00)
>>> 7 -1.13  d4e5  f1e1  e5d6  d1b3  d7c6  c1g5  f8e7 (525.00)
>>> 7 -1.13  d4e5  f1e1  e5d6  d1b3  d7c6  c1g5  f8e7 (625.00)
>>> 8 -0.99  d4e5?  f1e1  e5d6  d1b3  d6h2  h1h2  f8d6  f2f4  g8f6 (650.00)
>>> 8 -0.95  d4e5  f1e1  e5d6  d1b3  d7c6  h1g1 (1512.00)
>>> 8 -0.95  d4e5  f1e1  e5d6  d1b3  d7c6  h1g1 (1725.00)
>>> 9 -1.08  d4e5!  f1e1  e5d6  d1b3  d7c6  e1e6  f7e6  c3d5 (2387.00)
>>> 9 -1.35  d4e5!  f1e1  e5d6  d1b3  d7c6  e1e6  f7e6  c3d5 (3587.00)
>>> 9 -1.35  d4e5?  f1e1  e5d6  d1f3  g8f6  c1f4  d6b4  f4e5  f8e7  a1c1 (3725.00)
>>> 9 -1.35  d4e5  f1e1  e5d6  d1f3  g8f6  c1f4  d6b4  f4e5  f8e7  a1c1 (4212.00)
>>> 10 -1.21  d4e5?  f1e1  e5d6  d1b3  d7c6 (4575.00)
>>> 10 -1.19  d4e5  f1e1  e5d6  d1b3  d7c6  h1g1  g8f6  c1g5  h7h6  g5h4 (9975.00)
>>> 10 -1.19  d4e5  f1e1  e5d6  d1b3  d7c6  h1g1  g8f6  c1g5  h7h6  g5h4 (11112.00)
>>> 11 -1.32  d4e5!  f1e1  e5d6  d1b3  d7c6  h1g1  g8f6  d3h7 (35187.00)



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