Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: Nice testposition from an ICC game Gromit-Bringer ( Tactics)

Author: Uri Blass

Date: 03:19:46 12/04/01

Go up one level in this thread


On December 03, 2001 at 15:37:56, Peter Berger wrote:

>Golem - Bringer1.9ß11
>[D]r5k1/4R1pp/2b2q2/2Bp4/p1p5/P4P2/1P1Q2PP/6K1 w - - 0 1 bm h4
>
>The account Golem is running a current version of Gromit on an Athlon 1400.
>
>In this position Gromit found the nice and surprising shot h4 - the only road to
>a winning advantage for white.
>
>I suspect every program will find this sooner or later - it's a little about
>time.
>
>Gromit played it in a 60(1o) game ( the cct-4 time control).
>
>How long does it take your (favourite) program to find the move?
>
>Cheers,
>pete


How long does it take Bringer to avoid the blunder Rb8

Here is yace's only material analysis after learning that Qxh4 is losing more
than a pawn(rook for a bishop)

It believes that c3 is only losing a pawn

New position
[D]r5k1/4R1pp/2b2q2/2Bp4/p1p4P/P4P2/1P1Q2P1/6K1 b - h3 0 1

Analysis by Yace 0.99.56:

1...Qxh4 2.Rc7 Re8 3.Bf2 Qf6 4.Bd4 Re2 5.Qxe2 Qxd4+ 6.Qf2 Qxf2+ 7.Kxf2 Be8 8.Rc8
  +-  (1.50)   Depth: 1   00:00:00
1...c3 2.Qxc3
  ±  (0.80)   Depth: 1   00:00:00
1...Ra6
  =  (0.00)   Depth: 1   00:00:00
1...Ra6 2.Qd4
  =  (0.00)   Depth: 2   00:00:00
1...Rb8 2.Qd4 Rxb2
  µ  (-0.80)   Depth: 2   00:00:00
1...Rb8 2.Qd4
  µ  (-0.80)   Depth: 2   00:00:00
1...Rb8 2.Qd4 Rxb2
  µ  (-0.80)   Depth: 3   00:00:00
1...Rb8 2.Qd4 Rxb2 3.Qxf6
  µ  (-0.80)   Depth: 4   00:00:00
1...Rb8 2.Qd4 Rxb2 3.Rxg7+ Kxg7 4.Qxf6+ Kg8
  ³  (-0.40)   Depth: 5   00:00:00  6kN
1...Rb8 2.Qd4 Rxb2 3.Rxg7+ Kxg7 4.Qxf6+ Kxf6 5.Bd4+ Kf7 6.Bxb2
  =  (0.00)   Depth: 5   00:00:00  6kN
1...Rb8 2.Qd4 Rxb2 3.Rxg7+ Kxg7 4.Qxf6+ Kxf6 5.Bd4+ Kf7 6.Bxb2
  =  (0.00)   Depth: 6   00:00:00  30kN
1...Rb8 2.Qd4 Rxb2 3.Rxg7+ Kxg7 4.Qxf6+ Kxf6 5.Bd4+ Kf7 6.Bxb2 Kf8
  =  (0.00)   Depth: 7   00:00:00  186kN
1...Rb8 2.Qd4 Rxb2 3.Rxg7+ Kxg7 4.Qxf6+ Kxf6 5.Bd4+ Kf7 6.Bxb2 Kf8 7.Kf2
  =  (0.00)   Depth: 8   00:00:01  598kN
1...Rb8 2.Qd4 Rxb2 3.Rxg7+ Kxg7 4.Qxf6+ Kxf6 5.Bd4+ Kf7 6.Bxb2 Kf8 7.Kf2 Kg8
  =  (0.00)   Depth: 9   00:00:03  1761kN
1...Rb8 2.Rc7 Qe6 3.Qe3 Qg6 4.Bd4 Rb3 5.Rc8+ Kf7 6.Qf4+ Ke7 7.Qf8+ Ke6 8.Rxc6+
Kd7
  ²  (0.40)   Depth: 10   00:00:07  4053kN
1...Rb8 2.Rc7 Qe6 3.Qe3 Qg6 4.Bd4 Kh8 5.Rxg7 Qb1+ 6.Kh2 Be8
  ±  (0.80)   Depth: 10   00:00:09  5168kN
1...Rb8 2.Rc7 Qe6 3.Qe3 Qxe3+ 4.Bxe3 Be8 5.Bd4 g6 6.Rg7+ Kf8 7.Rxh7
  ±  (0.80)   Depth: 11   00:00:43  24287kN
1...Rb8 2.Rc7 Qe6 3.Qe3 Qxe3+ 4.Bxe3 Be8 5.Bd4 g6 6.Rg7+ Kf8 7.Rxh7 Kg8 8.Rh8+
Kf7 9.Kf2
  ±  (0.80)   Depth: 12   00:01:33  52901kN
1...Rb8 2.Rc7 Qe6 3.Qe3 Qxe3+ 4.Bxe3 Be8 5.Bd4 g6 6.Rg7+ Kf8 7.Rxh7 Kg8 8.Rh8+
Kf7 9.Kf2 Ke6
  ±  (0.80)   Depth: 13   00:04:04  137272kN
1...Rb8 2.Qe3 Qf5 3.Bd6 Rd8 4.Be5 Qb1+ 5.Kh2 Rd7 6.Re8+ Kf7 7.Bd6 Kg6 8.Qe6+ Kh5
9.g4+ Kxh4 10.Bg3+ Kg5 11.Qxc6 g6
  ±  (1.20)   Depth: 14   00:11:17  374955kN
1...Rb8 2.Qe3 Qf5 3.Bd6 Rd8 4.Be5 Qb1+ 5.Kh2 Rd7 6.Re8+ Kf7 7.Bd6 Rd8 8.Rxd8 d4
9.Qxd4 Be8
  +-  (2.20)   Depth: 14   00:12:47  422194kN
1...Rb8 2.Qe3 Qf5 3.Bd6 Rd8 4.Be5 Re8 5.Rxg7+ Kh8 6.Rg5+ Rxe5 7.Qxe5+ Qxe5
8.Rxe5 Kg8
  +-  (2.30)   Depth: 14   00:15:31  513045kN
1...c3 2.Qxc3
  +-  (2.29)   Depth: 14   00:16:59  563432kN
1...c3 2.Qxc3 Qxc3 3.bxc3 Be8 4.Rc7 g6 5.Bf2 Bf7 6.g4 Kg7 7.Bg3 Kg8 8.Kf2 Be8
  ±  (0.80)   Depth: 14   00:18:40  620437kN

(Blass, Tel-aviv 04.12.2001)



This page took 0 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.