Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: position without Ng5, good test

Author: Anthony Cozzie

Date: 16:33:17 10/18/02

Go up one level in this thread


On October 18, 2002 at 12:10:06, Will Singleton wrote:

>Adjusted position with the h7 pawn moved to h6, which prevents Ng5.
>I would be surprised if any amateur program can find this, other
>than Ruffian.
>
>[D]r1b1k2r/pp3pp1/4pb1p/2n5/3RB3/4BN2/PqP1QPPP/3R2K1 w kq - 0 1

Zappa does find it, although it needs 15(?!) ply and just over an hour.

1. Qc4 Bd7
 + (-1.00)      Depth: 5        00:00:00.26     31kN
1. Qc4 Nxe4 2. Bc1 Qb6 3. Rxe4
 = (-0.59)      Depth: 5        00:00:00.34     43kN
1. Qc4 Nxe4 2. Bxh6 Bxd4
 - (-0.84)      Depth: 6        00:00:00.64     86kN
1. Bc1 Qb6 2. Rd6 Qa5 3. Bd5 O-O
 = (-1.06)      Depth: 6        00:00:00.90     135kN
1. Qc4 Nxe4 2. Rxe4 O-O 3. Qb3 Qxb3 4. cxb3
 = (-0.94)      Depth: 7        00:00:01.78     354kN
1. Qc4 Nxe4 2. Rxe4 O-O 3. Bc5 Re8 4. Qa4 b5
 = (-1.15)      Depth: 8        00:00:03.80     1016kN
1. Qc4 Nxe4 2. Rxe4 O-O 3. Qb3 Qc3 4. Ra4 Qxb3 5. cxb3
 = (-0.94)      Depth: 9        00:00:07.84     2402kN
1. Qc4 Nxe4 2. Rxe4 O-O 3. Bd4 Bxd4 4. Nxd4 b6 5. c3 Bb7
 = (-1.17)      Depth: 10       00:00:24.53     8151kN
1. Qc4 Nxe4 2. Rxe4 O-O 3. Bd4 Bxd4 4. Nxd4 Bd7 5. Qb3 Qxb3 6. cxb3
 = (-0.94)      Depth: 11       00:01:00.04     20233kN
1. a3 Nxe4 2. Rxe4 O-O 3. Ra4 a5 4. Bc5 Re8 5. Bd4 Bxd4 6. Nxd4 Bd7
 = (-1.09)      Depth: 12       00:04:00.73     82694kN
1. Qc4 Nxe4 2. Rxe4 Bd7 3. Bd4 Qb5 4. Qxb5 Bxb5 5. Bxf6 gxf6 6. Nd4 Bc4 7. a4
 = (-1.03)      Depth: 13       00:12:17.16     254172kN
1. Nd2 O-O 2. Rc4 Nxe4 3. Nxe4 b6 4. Bc1 Qe5 5. Qf3 Be7 6. Nc5 b5 7. Qxa8 bxc4
 = (-1.02)      Depth: 14       00:41:49.80     898284kN
1. Rd8 Bxd8 2. Bxc5 Bd7 3. Qd2 Ba4 4. Qd6 Qxa2 5. Bxb7
 + (-0.77)      Depth: 15       01:00:26.49     1320066kN
1. Rd8 Bxd8 2. Bxc5 Be7 3. Bd4 Qb4 4. Bxg7 Rg8 5. Bxh6 Bf6 6. a3 Qb6 7. Kf1 Bd7
8. Bh7 Rg4
 = (-0.76)      Depth: 15       01:46:42.98     2283563kN



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.