Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: Analysis question for these 2 EPD positions

Author: Uri Blass

Date: 23:42:44 01/08/05

Go up one level in this thread


On January 09, 2005 at 00:45:33, Les Fernandez wrote:

>Following are 2 positions that I would like analyzed so that I can compare the
>times it takes to solve these 2 positions on several differnet engines.  Can a
>few of you run, using different engines, these 2 positions and report the amount
>of time it takes to find the mate move along with the move?  After I get a few
>analyses and have had time to review them I will report back with my results.
>
>Position #1
>
>[D]1b3rk1/pp4pp/2p3n1/1P1p4/P2P2q1/R4NPb/3NBK2/3QR3 b - -

Fruit2(fast) solve both positions at depth 4 in less than a second.

New game,
1b3rk1/pp4pp/2p3n1/1P1p4/P2P2q1/R4NPb/3NBK2/3QR3 b - - 0 1

Analysis by Fruit 2.0:

1...Qxd4+ 2.Re3 Bd6 3.bxc6 bxc6
  =  (-0.08)   Depth: 1/10   00:00:00
1...Bxg3+ 2.Ke3 Qf4+ 3.Kd3 Bxe1 4.Qxe1
  ยต  (-0.98)   Depth: 1/10   00:00:00
1...Bxg3+ 2.Ke3 Qe6+ 3.Ne5 Bxe1 4.Qxe1 Nxe5 5.dxe5 Qxe5+ 6.Kd3
  -+  (-2.47)   Depth: 2/19   00:00:00
1...Qxg3+ 2.Ke3 Bf5 3.Bd3 Re8+ 4.Ne4 dxe4
  -+  (-2.77)   Depth: 2/19   00:00:00
1...Qxd4+ 2.Re3 Bxg3+ 3.Kg1 Qxe3+ 4.Kh1 Bxe1 5.Qxe1
  -+  (-7.13)   Depth: 2/19   00:00:00
1...Qxd4+ 2.Re3 Bxg3+ 3.Kg1 Qxe3+ 4.Kh1 Nf4 5.Bf1 Bxe1 6.Qxe1
  -+  (-7.43)   Depth: 3/19   00:00:00
1...Qxd4+ 2.Re3 Bxg3+ 3.Kg1 Qxe3+ 4.Kh1 Bg2+ 5.Kxg2 Qf2+ 6.Kh1 Rf5 7.Bf1 Rh5+
8.Bh3 Rxh3+ 9.Nh2 Rxh2#
  -+  (-#9)   Depth: 4/25   00:00:00
1...Qxd4+ 2.Re3 Bxg3+ 3.Kg1 Qxe3+ 4.Kh1 Bg2+ 5.Kxg2 Qf2+ 6.Kh1 Rf5 7.Bf1 Rh5+
8.Bh3 Rxh3+ 9.Nh2 Rxh2#
  -+  (-#9)   Depth: 5/25   00:00:00
1...Qxd4+ 2.Re3 Bxg3+ 3.Kg1 Qxe3+ 4.Kh1 Bg2+ 5.Kxg2 Qf2+ 6.Kh1 Rf5 7.Bf1 Rh5+
8.Bh3 Rxh3+ 9.Nh2 Rxh2#
  -+  (-#9)   Depth: 6/25   00:00:01  1505kN
1...Qxd4+ 2.Re3 Bxg3+ 3.Kg1 Qxe3+ 4.Kh1 Bg2+ 5.Kxg2 Qf2+ 6.Kh1 Rf5 7.Bf1 Rh5+
8.Bh3 Rxh3+ 9.Nh2 Rxh2#
  -+  (-#9)   Depth: 7/25   00:00:05  5391kN

(, MyTown 09.01.2005)

>
>Position #2
>
>[D]1b3rk1/pp4pp/2p3n1/1Pqp4/P2P4/R4NPb/3NBK2/3QR3 b - -

New game,
1b3rk1/pp4pp/2p3n1/1Pqp4/P2P4/R4NPb/3NBK2/3QR3 b - - 0 1

Analysis by Fruit 2.0:

1...Qxa3 2.bxc6 bxc6
  -+  (-3.08)   Depth: 1/3   00:00:00
1...Qxa3 2.Qc2
  -+  (-3.02)   Depth: 2/12   00:00:00
1...Qxd4+ 2.Re3 Bxg3+ 3.Kg1 Qxe3+ 4.Kh1 Bxe1 5.Qxe1
  -+  (-7.13)   Depth: 2/15   00:00:00
1...Qxd4+ 2.Re3 Bxg3+ 3.Kg1 Qxe3+ 4.Kh1 Nf4 5.Bf1 Bxe1 6.Qxe1
  -+  (-7.43)   Depth: 3/19   00:00:00
1...Qxd4+ 2.Re3 Bxg3+ 3.Kg1 Qxe3+ 4.Kh1 Bg2+ 5.Kxg2 Qf2+ 6.Kh1 Rf5 7.Bf1 Rh5+
8.Bh3 Rxh3+ 9.Nh2 Rxh2#
  -+  (-#9)   Depth: 4/25   00:00:00
1...Qxd4+ 2.Re3 Bxg3+ 3.Kg1 Qxe3+ 4.Kh1 Bg2+ 5.Kxg2 Qf2+ 6.Kh1 Rf5 7.Bf1 Rh5+
8.Bh3 Rxh3+ 9.Nh2 Rxh2#
  -+  (-#9)   Depth: 5/25   00:00:00
1...Qxd4+ 2.Re3 Bxg3+ 3.Kg1 Qxe3+ 4.Kh1 Bg2+ 5.Kxg2 Qf2+ 6.Kh1 Rf5 7.Bf1 Rh5+
8.Bh3 Rxh3+ 9.Nh2 Rxh2#
  -+  (-#9)   Depth: 6/25   00:00:00  925kN
1...Qxd4+ 2.Re3 Bxg3+ 3.Kg1 Qxe3+ 4.Kh1 Bg2+ 5.Kxg2 Qf2+ 6.Kh1 Rf5 7.Bf1 Rh5+
8.Bh3 Rxh3+ 9.Nh2 Rxh2#
  -+  (-#9)   Depth: 7/25   00:00:03  3209kN

(, MyTown 09.01.2005)




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.