Author: Kurt Utzinger
Date: 10:32:11 11/07/05
Go up one level in this thread
On November 07, 2005 at 12:21:26, Paul Jacobean Sacral wrote:
>On November 07, 2005 at 12:00:19, Thorsten Czub wrote:
>
>>solved in 2 minutes or 12 seconds.
>>i would like to see positions solved in 1 h or 30 minutes.
>>any ?
>
>I'm not sure, but what about this one?
>
>6k1/4pp1p/3p2p1/7n/p3P3/r4P2/P1PK2P1/1R5R w - - 0 28
>28.Rxh5!! and the black rook a3 is trapped.
>
>[Event "Omsk"]
>[Site "Omsk"]
>[Date "1996.??.??"]
>[Round "7"]
>[White "Kozirev, Alexander"]
>[Black "Varavin, Viktor"]
>[Result "1-0"]
>[WhiteElo "2370"]
>[BlackElo "2520"]
>[SetUp "1"]
>[FEN "6k1/4pp1p/3p2p1/7n/p3P3/r4P2/P1PK2P1/1R5R w - - 0 28"]
>
>28. Rxh5 $3 gxh5 29. Rb2 e6 30. c3 d5 31. exd5 exd5 32. Kd3 Kf8 33. Re2 f6 34.
>Kd4 Kf7 35. Rc2 Ke6 36. Kc5 d4 37. Kxd4 1-0
>
>Yours truly Paul J. Sacral
Is this really a good test position.
CM9_T05 does not find 28.Rxh5 within
reasonable time and does even not
assess the postion after 28.Rxh5 gxh5
as won for White. Is the game continuation
indeed forced. Further investigations
are required I think. Analysis under
CM-GUI on P4 1.8/32 MB hash
Kurt
[D]6k1/4pp1p/3p2p1/7n/p3P3/r4P2/P1PK2P1/1R5R w - - 0 28
Time Depth Score Positions Moves
0:02 1/9 1.06 343413 28.Rb2 Nf4 29.Rg1 f5 30.exf5 gxf5
31.Rb4 Nd5 32.Rd4 e6
0:04 1/10 1.04 748210 28.Rb2 Nf4 29.Rh2 Ne6 30.c3 Nc5
31.Rh1 e6 32.Rc1 f5 33.exf5 exf5
0:12 1/11 1.16 2351291 28.Rb2 Nf4 29.c3 f5 30.exf5 gxf5
31.Rc2 e6 32.Rb1 e5 33.Rb8+ Kf7
34.Rb7+ Ke6 35.g3
0:22 2/12 1.17 4451853 28.Rb2 Nf4 29.c3 f5 30.exf5 gxf5
31.Rc2 Nd5 32.Rh5 e6 33.Rh6 Nf4
34.Rb2
0:51 3/13 1.19 10376122 28.Rb2 Nf4 29.c3 Kg7 30.Rc2 h6
31.g3 Ne6 32.Kc1 Nc7 33.Kb2 Nb5
34.Rhc1 e6
2:28 4/14 1.11 29740963 28.Rb2 Nf4 29.c3 f5 30.exf5 gxf5
31.Rh4 Nxg2 32.Rh5 Nf4 33.Rg5+
Ng6 34.Rxf5 Kg7 35.Ra5 Ne5 36.f4
4:26 4/14 1.76 54153429 28.Rb8+ Kg7 29.Ra1 Nf4 30.c3 d5
31.Rb4 e5 32.g3 Nh5 33.exd5 Nxg3
34.d6 Kf6 35.Rg4 Nf5 36.d7
9:45 5/15 1.99 124025813 28.Rb8+ Kg7 29.Ra1 Nf4 30.c3 Nxg2
31.Rb4 Nf4 32.Kc2 Ne2 33.Rc4 f5
34.Kb2 Rxc3 35.Rxc3 Nxc3 36.Kxc3
fxe4 37.fxe4 h5 38.Rh1 Kf6
27:58 6/16 2.29 363103286 28.Rb8+ Kg7 29.Ra1 d5 30.exd5 Nf4
31.Rb5 Nxg2 32.c3 h5 33.Rb4 g5
34.Kc2 Ne3+ 35.Kb2 Rxc3 36.Kxc3
Nxd5+ 37.Kc4 Nxb4 38.Kxb4 g4 39.fxg4
hxg4 40.Kxa4
[D]6k1/4pp1p/3p4/7p/p3P3/r4P2/P1PK2P1/1R6 w - -
Time Depth Score Positions Moves
0:20 6/14 0.37 4555520 1.Ra1 e6 2.c3 d5 3.exd5 exd5 4.Kc2
d4 5.cxd4 Kf8 6.d5 Ke7 7.Re1+ Kd6
8.Kb2 Rd3
0:46 7/15 0.25 11276683 1.Ra1 e6 2.c3 d5 3.exd5 exd5 4.Kc2
d4 5.cxd4 Kf8 6.f4 Ke7 7.f5 Kd6
8.Kb2 Rd3
1:40 7/15 0.49 24191934 1.Rb2 e6 2.c3 Kf8 3.Rc2 d5 4.exd5
exd5 5.Kc1 d4 6.cxd4 Ke7 7.Kd2
h4 8.Ke2 Ke6
2:48 8/16 0.18 39233654 1.Rb2 e6 2.c3 Kf8 3.Rc2 d5 4.Kc1
d4 5.cxd4 h4 6.Rf2 h3 7.gxh3 Rd3
8.d5 exd5
5:15 8/16 0.27 74067695 1.Ra1 e6 2.c3 d5 3.exd5 exd5 4.Kc2
d4 5.cxd4 Kf8 6.d5 Ke7 7.Re1+ Kd6
8.Kb1 Rd3 9.Re4 Rd2
7:04 9/17 0.16 100133107 1.Ra1 e6 2.c3 d5 3.Kc2 d4 4.cxd4
Kf8 5.d5 Ke7 6.dxe6 Kxe6 7.Kb2
Re3 8.Rc1 a3+ 9.Kb1 Re2
11:53 9/17 0.35 169730426 1.Rb8+ Kg7 2.Rb2 e6 3.c3 d5 4.exd5
exd5 5.Rc2 h4 6.Kc1 d4 7.Kb2 Rxc3
8.Rxc3 dxc3+ 9.Kxc3 Kf6 10.Kb4
Ke5 11.Kxa4 f5 12.Kb4 f4
13:07 9/17 0.44 186521635 1.Rb2 e6 2.c3 d5 3.Rc2 d4 4.cxd4
Kf8 5.Ke2 Ke7 6.d5 Kd6 7.Rd2 f6
8.dxe6+ Kxe6 9.g3 Rc3
19:52 10/18 0.60 281820334 1.Rb2 e6 2.c3 d5 3.exd5 exd5 4.Rc2
Kf8 5.Kc1 d4 6.Kb2 Rxc3 7.Rxc3
dxc3+ 8.Kxc3 Ke7 9.Kb4 Kd6 10.Kxa4
Kc5 11.Kb3 h4 12.a4
This page took 0.01 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.