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Subject: A move of Junior7 that I could not reproduce at long time control.

Author: Uri Blass

Date: 02:52:37 07/11/01


This position is from haraled faver's games.

Junior 7,K - ChessTiger 14,K
[D]r1r2k2/pb3pp1/4p2p/3nP3/Nq6/3Q1N2/1P3PPP/R2R2K1 w - - 0 1

Junior played here 22.Nc3

I gave my Junior7 to anlayze the same position and it did not like Nc3

Analysis by Junior 7:

22.b3 Rd8
  =  (0.07)   Depth: 3   00:00:00
22.h3 Rd8
  =  (0.10)   Depth: 3   00:00:00
22.Nd4 Rd8
  =  (0.13)   Depth: 3   00:00:00
22.Qh7 Rd8
  ²  (0.27)   Depth: 3   00:00:00
22.Qh7!
  ²  (0.57)   Depth: 6   00:00:00  1kN
22.Qh7! Ne7 23.Qh8+ Ng8 24.Rd4 Qb5
  ±  (0.84)   Depth: 6   00:00:00  7kN
22.Qh7 Nf4 23.b3 Bxf3 24.gxf3 Nh3+ 25.Kg2 Qh4 26.Qh8+ Ke7 27.Qxg7 Qxf2+
  =  (-0.02)   Depth: 9   00:00:01  694kN
22.Qh7 Nf4 23.Rd7 Ke8 24.Rdd1 Ke7 25.b3 Nh3+ 26.gxh3 Bxf3 27.Rd6 Kf8
  =  (-0.05)   Depth: 12   00:00:11  8344kN
22.Qh7 Nf4 23.Rd7 Ng6 24.Rd4 Qb5 25.Nh4 Nxh4 26.Rxh4 Qxe5 27.Rb4 Bd5 28.Nc3 a5
  =  (-0.25)   Depth: 14   00:01:06  46907kN
22.h3 Nf4 23.Qd6+ Qxd6 24.exd6 Bxf3 25.gxf3 Rc2 26.h4 Rd8 27.Nc3 Nh3+ 28.Kg2
Nxf2
  =  (-0.24)   Depth: 14   00:01:10  49142kN
22.b3 Kg8 23.Qd4 a5 24.Qxb4 axb4 25.Rdc1 Rab8 26.Rxc8+
  =  (-0.05)   Depth: 14   00:01:14  52426kN
22.b3 Kg8 23.Qd4 a5 24.Qxb4 axb4 25.Rdc1 Nc3 26.Nd4
  =  (-0.16)   Depth: 15   00:01:24  58639kN
22.b3 Kg8 23.Qd4 a5 24.Qxb4 axb4 25.Rdc1 Nc3 26.Nd4
  =  (-0.16)   Depth: 16   00:02:36  105349kN
22.b3 Kg8 23.Qd4 a5 24.Qxb4 axb4 25.Rdc1 Nc3 26.Nd4 Be4
  =  (-0.17)   Depth: 17   00:05:12  203618kN

(Blass, Tel-aviv 11.07.2001)

I tried to give it the same position at tournament condition and here is the
analysis

Junior 7 - Blass,U
r1r2k2/pb3pp1/4p2p/3nP3/Nq6/3Q1N2/1P3PPP/R2R2K1 w - - 0 1

Analysis by Junior 7:

22.b3 Rd8
  =  (0.07)   Depth: 3   00:00:00
22.h3 Rd8
  =  (0.10)   Depth: 3   00:00:00
22.Nd4 Rd8
  =  (0.13)   Depth: 3   00:00:00
22.Qh7 Rd8
  ²  (0.27)   Depth: 3   00:00:00
22.Qh7!
  ²  (0.57)   Depth: 6   00:00:00  1kN
22.Qh7! Ne7 23.Qh8+ Ng8 24.Rd4 Qb5
  ±  (0.84)   Depth: 6   00:00:00  7kN
22.Qh7 Nf4 23.b3 Bxf3 24.gxf3 Nh3+ 25.Kg2 Qh4 26.Qh8+ Ke7 27.Qxg7 Qxf2+
  =  (-0.02)   Depth: 9   00:00:01  638kN
22.Qh7 Nf4 23.Rd7 Ke8 24.Rdd1
  =  (0.00)   Depth: 12   00:00:12  9070kN
22.Nc3 Nxc3 23.bxc3 Qxc3 24.Qd6+ Kg8 25.Nd4 Rd8 26.Rac1 Qxc1 27.Rxc1 Rxd6
28.exd6
  =  (-0.03)   Depth: 12   00:00:14  10323kN
22.Nc3 Qxb2 23.Ne4 Nf4 24.Qd6+ Kg8 25.Rab1 Qe2 26.Rxb7 Qxe4 27.Qe7 Nh3+ 28.Kf1
Qc4+ 29.Ke1 Qc3+ 30.Kf1
  =  (0.00)   Depth: 14   00:00:21  14864kN
22.Qa3 Qxa3 23.Rxa3 Ne7 24.Nd4 Ng6 25.Re3 Rab8 26.Nc3
  =  (-0.14)   Depth: 14   00:00:52  35689kN
22.Qa3 Qxa3 23.Rxa3 Nf4 24.Ne1 Ne2+ 25.Kh1 Rab8 26.Nc3 Nxc3 27.bxc3 a5
  =  (-0.17)   Depth: 16   00:01:02  42938kN
22.b3 Kg8 23.Qd2 a5 24.Qxb4 axb4 25.Rdc1 Nc3 26.Nd4
  =  (-0.16)   Depth: 16   00:01:39  67309kN

(Blass, Tel-aviv 11.07.2001)


Here is the analysis of Junior after 22.Nc3

Junior 7,K - ChessTiger 14,K
r1r2k2/pb3pp1/4p2p/3nP3/1q6/2NQ1N2/1P3PPP/R2R2K1 b - - 0 1

Analysis by Junior 7:

22...Nxc3 23.bxc3 Rxc3 24.Qh7 Bxf3
  ³  (-0.42)   Depth: 3   00:00:00
22...Nxc3 23.bxc3 Qxc3 24.Qxc3
  =  (-0.17)   Depth: 6   00:00:00  3kN
22...Nf4 23.Qh7 Nxg2 24.Ra4 Qxb2 25.Rb1 Qxc3 26.Qh8+ Ke7 27.Rxb7+
  ³  (-0.29)   Depth: 6   00:00:00  14kN
22...Nf4 23.Qd6+ Qxd6 24.exd6 Bxf3 25.gxf3 Rc4 26.d7 Ke7
  ²  (0.36)   Depth: 9   00:00:00  172kN
22...Nxc3 23.bxc3 Qxc3 24.Qd6+
  =  (-0.17)   Depth: 9   00:00:00  184kN
22...Nxc3 23.bxc3 Qxc3 24.Qd6+ Kg8 25.Nd4 a5 26.Qd7 Rc7 27.Ra3 Qe1+ 28.Rxe1 Rxd7
  ³  (-0.36)   Depth: 12   00:00:03  1590kN
22...Nxc3 23.bxc3 Qxc3 24.Qh7 Bxf3 25.gxf3 a5 26.f4 Qf3 27.Rd3 Qe2 28.Rd7
  ³  (-0.43)   Depth: 15   00:00:29  17321kN
22...Nxc3 23.bxc3 Qxc3 24.Qd6+ Kg8 25.Nd4 Rd8 26.Qa3 Qxa3 27.Rxa3 a5 28.f4 a4
29.Kf2 Be4
  ³  (-0.59)   Depth: 17   00:02:35  89481kN

(Blass, Tel-aviv 11.07.2001)

I wonder if the reason for Nc3 was some learning from hash tables,different size
of hash tables, autoplayer bug or another reason(Junior used 848 seconds to
caluclate the move Nc3 based on the pgn)

Uri

Re: A move of Junior7 that I could not reproduce at long time control. Harald Faber 03:26:29 07/11/01
- Re: A move of Junior7 that I could not reproduce at long time control. Uri Blass 04:42:49 07/11/01
  - Re: A move of Junior7 that Uri now can reproduce at long time control ! Harald Faber 05:04:53 07/11/01
    - Re: A move of Junior7 that Uri now can reproduce at long time control ! Uri Blass 05:52:37 07/11/01
    - Re: A move of Junior7 that Uri now can reproduce at long time control ! Chessfun 05:41:43 07/11/01
  - Re: A move of Junior7 that I could not reproduce at long time control. Chessfun 04:50:11 07/11/01
    - Re: A move of Junior7 that I could not reproduce at long time control. Uri Blass 05:41:03 07/11/01
    - Re: A move of Junior7 that I could not reproduce at long time control. Harald Faber 04:54:14 07/11/01
      - Re: A move of Junior7 that I could not reproduce at long time control. Chessfun 04:57:19 07/11/01
        
        Re: A move of Junior7 that I could not reproduce at long time control. Brian Kostick 16:00:22 07/11/01
        
        Re: A move of Junior7 that I could not reproduce at long time control. Chessfun 17:18:10 07/11/01
        
        Re: A move of Junior7 that I could not reproduce at long time control. Harald Faber 07:06:51 07/11/01

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Last modified: Thu, 15 Apr 21 08:11:13 -0700

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