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Subject: test position

Author: Uri Blass

Date: 03:57:16 08/19/04

Fritz8 needs a very long time to find a known combination that was played by a
19 year old player in 1929(neidorf sorry if I mispell his name)

A3000 512 mbytes hash

New game
[D]r1b2rk1/pp1n2pp/2p1p3/3p1pNq/2PP1Pn1/3BP1P1/PP2N1Kb/R1BQ1R2 b - - 0 1

Analysis by Fritz 8:

1...Ndf6 2.Nf3 Ne4 3.Qc2 dxc4 4.Bxe4 fxe4 5.Qxe4
  µ  (-1.28)   Depth: 7/28   00:00:00  88kN
1...Ndf6--
  µ  (-1.00)   Depth: 8/28   00:00:00  210kN
1...Ndf6 2.Rh1 Ne4
  µ  (-1.00)   Depth: 8/28   00:00:00  252kN
1...dxc4!
  µ  (-1.03)   Depth: 8/28   00:00:00  322kN
1...dxc4!
  µ  (-1.19)   Depth: 8/28   00:00:00  335kN
1...dxc4 2.Bxc4 Nb6 3.Bb3 Nd5 4.Qd3 h6 5.Nf3 Rd8
  µ  (-1.25)   Depth: 8/28   00:00:00  380kN
1...dxc4--
  µ  (-0.97)   Depth: 9/33   00:00:00  718kN
1...dxc4 2.Bxc4 Nb6
  µ  (-0.97)   Depth: 9/33   00:00:00  755kN
1...Ndf6!
  µ  (-1.00)   Depth: 9/33   00:00:00  987kN
1...Ndf6 2.Rh1 Ne4 3.Nh3 Rf6 4.Bxe4 fxe4 5.Nc3 dxc4 6.Rxh2
  µ  (-1.06)   Depth: 9/33   00:00:01  1071kN
1...Ndf6--
  µ  (-0.78)   Depth: 10/35   00:00:02  2158kN
1...Ndf6 2.Rh1 Ne4 3.Nh3 b6 4.Qa4 Bb7 5.Rxh2 Nef2 6.Qc2 Nxd3
  µ  (-0.72)   Depth: 10/35   00:00:02  2913kN
1...dxc4!
  µ  (-0.75)   Depth: 10/35   00:00:02  2973kN
1...dxc4!
  µ  (-0.91)   Depth: 10/35   00:00:02  3014kN
1...dxc4!
  µ  (-1.22)   Depth: 10/35   00:00:02  3093kN
1...dxc4--
  µ  (-0.94)   Depth: 11/35   00:00:05  6018kN
1...dxc4 2.Bxc4 Nb6
  µ  (-0.94)   Depth: 11/35   00:00:05  6231kN
1...Ndf6!
  µ  (-0.97)   Depth: 11/38   00:00:11  12609kN
1...Ndf6 2.Rh1 dxc4 3.Bxc4 b5 4.Bb3 c5 5.Bxe6+ Bxe6 6.Nxe6 Nd5 7.Qe1 Ngxe3+
8.Bxe3
  µ  (-1.03)   Depth: 12/36   00:00:17  19947kN
1...Ndf6--
  µ  (-0.75)   Depth: 13/40   00:00:46  53059kN
1...Ndf6 2.Rh1 dxc4
  µ  (-0.75)   Depth: 13/42   00:00:52  60723kN
1...dxc4!
  µ  (-0.78)   Depth: 13/42   00:00:54  62422kN
1...dxc4 2.Bxc4 Nb6 3.b3 Nxc4 4.bxc4 c5 5.Rh1 b5 6.dxc5 Bb7+ 7.e4 bxc4 8.Qd7 Bc8
9.Qd6 Ne3+
  µ  (-0.97)   Depth: 14/41   00:02:20  164348kN
1...dxc4 2.Bxc4 Nb6 3.b3 Nxc4 4.bxc4 c5 5.Rh1 b5 6.d5 bxc4 7.Nf3 Bb7 8.Nc3 exd5
9.Rb1 Nxe3+ 10.Bxe3
  µ  (-0.78)   Depth: 15/47   00:05:24  385404kN
1...Ndf6!
  µ  (-0.81)   Depth: 15/47   00:06:37  471628kN
1...Ndf6 2.Nf3 dxc4 3.Bxc4 Ne4 4.Qe1 b5 5.Bd3 c5 6.Bxb5 Rb8 7.Qa5 Bb7 8.Bd7 Nef2
  µ  (-0.84)   Depth: 15/47   00:07:13  514726kN
1...Ndf6 2.Nf3 Ne4 3.Bxe4 dxe4 4.Ne5 Rf6 5.Nxg4 fxg4 6.Rh1 Rh6 7.Ng1 e5 8.fxe5
Be6 9.Qb3 b5
  µ  (-0.75)   Depth: 16/45   00:17:28  1244906kN
1...dxc4!
  µ  (-0.78)   Depth: 16/45   00:18:07  1291980kN
1...Bg1!
  µ  (-0.81)   Depth: 16/50   00:36:23  2609307kN
1...Bg1!
  µ  (-0.97)   Depth: 16/50   00:37:55  2720438kN
1...Bg1!
  µ  (-1.28)   Depth: 16/50   00:39:13  2814439kN
1...Bg1 2.Nxg1 Qh2+ 3.Kf3 e5 4.cxd5 e4+ 5.Bxe4 fxe4+ 6.Kxe4 Ndf6+ 7.Kd3 Nf2+
8.Rxf2 Qxf2 9.dxc6 bxc6 10.e4
  -+  (-1.72)   Depth: 16/50   00:46:12  3318206kN

(, MyTown 19.08.2004)

Re: test position [1000 second analysis by many chess engines] Dann Corbit 11:58:24 08/23/04
Re: test position [Many amateur programs can solve it under one minute] Dann Corbit 10:35:27 08/20/04
Re: test position - Palm Hiarcs 71 seconds. Mark Uniacke 05:36:58 08/20/04
Re: test position......CM-9000.....12 seconds..!! Rob Basham 11:50:14 08/19/04
Re: test position Robert Hyatt 11:23:29 08/19/04
Re: test position Martin Giepmans 10:05:19 08/19/04
Re: test position Vincent Lejeune 06:40:17 08/19/04
- Re: test position Uri Blass 09:07:10 08/19/04
  - Re: test position:Yace(A3000 512 mbytes) 104 seconds Uri Blass 10:06:58 08/19/04
  - Re: test position -> The King : 18 sec !!!! Vincent Lejeune 09:52:35 08/19/04
    - Re: test position -> The King : 18 sec !!!! Tom Brake 10:13:07 08/19/04
  - Re: test position Vincent Lejeune 09:18:04 08/19/04

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

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