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Subject: Re: Warp - Diep, WCCC

Author: Ulrich Tuerke

Date: 14:28:27 12/02/02

Go up one level in this thread


>
>[D]7k/p3Qp1p/1p2n3/4nqP1/2P5/2P3R1/P5RP/3r2BK w - -
>


Comet B54 (on k7-2k) likes Qxa7

Analysis by Comet B54:

...
1.Qxa7 Nxc4 2.Qa4 Qd5 3.Qe8+ Kg7 4.Rg4
  +-  (3.23)   Depth: 6/18   00:00:00  176kN
1.Qxa7 Nf4 2.Qa8+ Kg7 3.h4
  +-  (3.25)   Depth: 6/20   00:00:00  276kN
1.Qxa7 Nf4 2.Qa8+ Kg7 3.h4
  +-  (3.24)   Depth: 7/20   00:00:00  353kN
1.Qxa7 Nf4 2.Qa8+ Kg7 3.h4
  +-  (2.97)   Depth: 7/30   00:00:01  1091kN
1.Qxa7 Nf4 2.Qb8+ Kg7 3.Qxb6 Qxg5
  +-  (2.97)   Depth: 7/30   00:00:02  1537kN
1.Qxa7 Nf4 2.Qb8+ Kg7 3.Qxb6 Qxg5
  +-  (2.97)   Depth: 8/30   00:00:03  1804kN
1.Qxa7 Nf4 2.g6 hxg6 3.Qb8+ Kg7 4.Rg5
  +-  (3.04)   Depth: 8/32   00:00:04  3192kN
1.Qxa7 Nf4 2.g6 hxg6 3.Qb8+ Kg7 4.Rg5 Rxg1+ 5.Rxg1 Qe4+ 6.R1g2 Nxg2 7.Rxe5
  +-  (3.04)   Depth: 9/32   00:00:08  6032kN
1.Qxa7 Nf4 2.Qe7 Neg6 3.Qe8+ Kg7 4.Rb2 Ne5 5.h4 Nh5 6.Rgg2 Nxc4
  +-  (3.16)   Depth: 9/34   00:00:12  8802kN
1.Qxa7 Nf4 2.Qe7 Neg6 3.Qe8+ Kg7 4.Rb2 Ne5 5.Qa4 Qe4+ 6.Rf3 Nxf3 7.Qxd1 Nxg1+
8.Kxg1 Qxc4
  +-  (3.15)   Depth: 10/34   00:00:17  11903kN
1.Qxa7 Qe4 2.Qxb6 Nf3 3.Rxf3 Qxf3 4.Qf2 Nxg5 5.Qxf3 Nxf3 6.c5 Rd7
  +-  (3.00)   Depth: 10/36   00:00:44  30785kN
1.Qxa7 Qe4 2.Qxb6 Nf3 3.Rxf3 Qxf3 4.Qf2 Nxg5 5.Qxf3 Nxf3 6.Rg8+ Kxg8 7.h4
  +-  (2.99)   Depth: 11/38   00:01:49  76277kN
1.Qxa7 Qe4 2.Qxb6 Nf3 3.Rxf3 Qxf3 4.Qb8+ Kg7 5.Qe5+ Kg6 6.Qe2 Qxe2 7.Rxe2 Kxg5
  +-  (2.98)   Depth: 11/38   00:03:16  136180kN

>
>[D]8/p4pkp/1p2n3/2P1n1P1/8/1QP3R1/P5RP/2qr2BK b - -
>

It takes Comet 3.5 minutes to find Nf4

1...Nxc5 2.Qb5 Rxg1+ 3.Rxg1 Qxg1+ 4.Rxg1 Ned3
    (1.33)   Depth: 6/19   00:00:00  74kN
1...Nxc5 2.Qb5 Rxg1+ 3.Rxg1 Qxg1+ 4.Rxg1 Ned3
  +-  (1.60)   Depth: 6/19   00:00:00  108kN
1...Nxc5 2.Qb5 Re1 3.Re2
  +-  (1.86)   Depth: 6/19   00:00:00  168kN
1...Nxc5 2.Qb5
  +-  (1.86)   Depth: 7/25   00:00:00  233kN
1...Nxc5 2.Qb5 Ncd3 3.Qe8 Qa3 4.Qa8 Qa4
  +-  (1.62)   Depth: 7/26   00:00:00  298kN
1...Nxc5 2.Qb5 Ncd3 3.Qe8 Qa3 4.Qa8 Qa5 5.Rc2
  +-  (1.63)   Depth: 8/26   00:00:01  490kN
1...Nxc5 2.Qb4 Kg8 3.Qh4 Rd3 4.Rh3 Rxh3 5.Qxh3
  +-  (1.89)   Depth: 8/39   00:00:04  2142kN
1...Nxc5 2.Qb4
  +-  (1.89)   Depth: 9/39   00:00:05  2718kN
1...Nxc5 2.Qb4 Kg8 3.Re2 Nf3 4.Re8+ Kg7 5.Qg4 Nxg1 6.Rxg1 Rxg1+ 7.Qxg1 Qxc3
  +-  (1.65)   Depth: 9/39   00:00:06  3519kN
1...Nxc5 2.Qb4 Kg8 3.Qh4 Ng6 4.Qg4 Ne5 5.Qc8+ Kg7
  +-  (1.66)   Depth: 10/39   00:00:13  7192kN
1...Nxc5 2.Qb4 Kg8 3.Rh3 Ng6 4.Qb5 Ne6 5.Qe8+ Kg7 6.Rhg3 Ne5
  +-  (1.73)   Depth: 10/39   00:00:40  24629kN
1...Nxc5 2.Qb4 Kg8 3.Rh3 Ng6 4.Qb5 Re1 5.Qc6 Nf4 6.Qc8+ Kg7 7.Rc2
  +-  (1.73)   Depth: 11/39   00:00:56  35020kN
1...Nxc5 2.Qb4 Kg8 3.Rh3 Ng6 4.Qb5 Re1 5.Qc6 Kg7
  +-  (1.73)   Depth: 11/39   00:01:13  46216kN
1...Nxc5 2.Qb4 Kg8 3.Qb5 Qf4 4.Qe2 Rc1 5.Re3 Rxg1+ 6.Rxg1 Qxg5
  +-  (1.74)   Depth: 12/39   00:02:23  93259kN
1...Nf4 2.Rc2 Rxg1+ 3.Rxg1 Qe3 4.cxb6 Nf3 5.Rf1 Nd2 6.Qa4 Nxf1 7.Rg2
  +-  (1.73)   Depth: 12/39   00:03:32  146091kN, tb=2

>This is the game after Nf4 Rc2 Rxg1 Rxg1 Qe3.
>How long for your engine to show a draw score here?  Warp's score drops to +0.3
>at depth 12, in about 3.5 minutes.

Comet is bloody slow here: 9 minutes to drop to 0.08. I wasn't patient enough to
wait for the 0.0

1.cxb6 axb6 2.Qxf7+ Nxf7 3.Rgg2
  +-  (3.12)   Depth: 6/16   00:00:00  67kN
1.cxb6 Qe4+ 2.Rcg2 Nxg2 3.Qxf7+ Nxf7 4.bxa7
  +-  (2.85)   Depth: 6/22   00:00:00  156kN
1.cxb6 Qe4+ 2.Rcg2 Nxg2 3.Qxf7+ Nxf7 4.bxa7
  +-  (2.32)   Depth: 6/22   00:00:00  208kN
1.cxb6 Qf3+ 2.Rcg2 Nxg2 3.Qd1 Qxd1 4.Rxd1
  +-  (2.15)   Depth: 6/23   00:00:00  349kN
1.cxb6 Nf3 2.Rf1 Qe4 3.Qxf7+ Kxf7 4.bxa7
  +-  (2.14)   Depth: 7/30   00:00:01  1097kN
1.cxb6 Nf3 2.Rf1 Qe4 3.Qxf7+ Kxf7 4.bxa7
  +-  (1.87)   Depth: 7/30   00:00:02  1436kN
1.cxb6 Nf3 2.Rf1 Qe4 3.Rg2 Nd3
  +-  (1.87)   Depth: 7/30   00:00:02  1807kN
1.cxb6 Nf3 2.Rf1 Nd2 3.Qxf7+ Kxf7 4.Rxf4+ Qxf4 5.b7
  +-  (1.86)   Depth: 8/31   00:00:03  2420kN
1.cxb6 Qe4+ 2.Rcg2 Nxg2 3.Qb4 Qf3 4.c4 Nh4+ 5.Rg2
  +-  (1.59)   Depth: 8/33   00:00:05  3835kN
1.Qb1 Qf3+ 2.Rcg2 Nxg2 3.Rxg2 Ng4 4.Qg1 Ne3 5.cxb6 Nxg2 6.Qxg2 Qd1+ 7.Qg1 Qxg1+
8.Kxg1 axb6
  +-  (1.60)   Depth: 8/33   00:00:06  4459kN
1.Qb1 Qe4+ 2.Rcg2 Ned3 3.Qf1 Nxg2 4.Qxd3 Qxd3 5.cxb6
  +-  (1.59)   Depth: 9/33   00:00:07  5055kN
1.Qb1 Qe4+ 2.Rcg2 Ned3 3.Qf1 Nxg2 4.Qxd3 Qxd3 5.cxb6
    (1.32)   Depth: 9/33   00:00:11  7218kN
1.Qb1 Qe4+ 2.Rcg2 Ned3 3.Qf1 Nxg2 4.Rxg2 bxc5
    (1.25)   Depth: 9/33   00:00:13  8795kN
1.Qb1 Qe4+ 2.Rcg2 Ned3 3.Qf1 Nxg2 4.Rxg2 Nf4 5.Qb1 Qxb1+ 6.Rg1
    (1.24)   Depth: 10/33   00:00:15  9974kN
1.Qb1 Qe4+ 2.Rcg2 Ned3 3.Qf1 Nxg2 4.Rxg2 Nf4 5.cxb6 Nh3
    (1.24)   Depth: 10/34   00:00:28  18520kN
1.Qb1 Qf3+ 2.Rcg2 Nxg2 3.Rxg2 Ng4 4.Qg1 Ne3 5.Qxe3 Qxe3 6.cxb6
    (1.23)   Depth: 11/34   00:00:31  20493kN
1.Qb1 Qf3+ 2.Rcg2 Nxg2 3.Rxg2 Ng4 4.Qe1 Ne3 5.Qe2 Qe4
    (1.10)   Depth: 11/37   00:01:21  54425kN
1.Qb1 Qf3+ 2.Rcg2 Nxg2 3.Rxg2 Ng4 4.Qe1 Ne3 5.Qxe3 Qxe3 6.cxb6
    (1.09)   Depth: 12/37   00:01:43  71184kN
1.Qb1 Qf3+ 2.Rcg2 Nxg2 3.Rxg2 Nd3 4.Qg1 bxc5 5.Qxc5 Nxc5 6.Kg1
    (0.82)   Depth: 12/39   00:04:29  195053kN, tb=8
1.Qb1 Qf3+ 2.Rcg2 Nxg2 3.Rxg2 Nd3 4.Qg1 bxc5 5.Qxc5 Nxc5 6.Kg1
    (0.29)   Depth: 12/39   00:05:40  253040kN, tb=8
1.Qb1 Qf3+ 2.Rcg2 Nxg2 3.Rxg2 Nd3 4.h4 Nf4 5.Qb2 Qf1+ 6.Kh2 Nxg2 7.Qxg2 Qf4+
8.Qg3 Qxg3+ 9.Kxg3 bxc5
  =  (0.08)   Depth: 12/39   00:08:58  412453kN, tb=12


Thanks for posting these interesting positions, Peter. Seems like here is some
possibilty for improvements in my engine.

ciao,
Uli



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