Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: nice queen sac

Author: Luis Smith

Date: 20:51:15 03/11/04

Go up one level in this thread


On March 11, 2004 at 23:21:17, Jon Dart wrote:

>From a game Chepla-Arasan, on ICC:
>
>[D] 3q1r1k/1P1n2p1/4R2p/2QBp2P/3pPb2/R1p2P2/5P2/5K2 w - -
>
>Qxf8+!
>
>It is decisively winning: the next move, Arasan did not
>predict this, but after the move showed a score of about -24,
>and resigned.
>
>Arasan 7.4 takes 39 seconds to find this move on an Athlon
>XP 2500+.
>
>--Jon

Fruit 0.98a on Athlon XP 2200+ with 16 MB hash takes 14 seconds to find and a
little over 1 minute to give it a good score.

Fruit 0.98b  UCI:
 1   00:00 -3.69   Qc5xf8+ Qd8xf8
 1   00:00 -3.09   Re6xh6+ g7xh6
 1   00:00 -0.39   b7b8Q Qd8xb8
 1   00:00  0.85   Qc5b4
 1   00:00  0.94   Qc5c4
 1   00:00  0.97   Qc5a7
 1   00:00  1.02   Qc5e7
 2   00:00  0.83   Qc5e7 c3c2
 3   00:00 -2.21   Qc5e7 c3c2 Ra3a1 c2c1Q+ Ra1xc1 Bf4xc1 Qe7xd8 Rf8xd8
 3   00:00  0.88   Qc5c4 Qd8g5 Qc4c7
 4   00:00  0.87   Qc5c4 Nd7b6 Qc4a2 Nb6d7
 5   00:00  0.96   Qc5c4 Nd7b6 Qc4a2 Nb6xd5 Qa2xd5
 6   00:00  1.16   Qc5c4 Nd7b6 Qc4c6 c3c2 Qc6xc2 Nb6xd5 e4xd5 Qd8xd5
 7   00:00  1.16   Qc5c4 Nd7b6 Qc4c6 c3c2 Qc6xc2 Nb6xd5 e4xd5 Qd8xd5
 7   00:00  1.20   Qc5c6 Nd7b8 Qc6c4 Kh8h7 Ra3a7 Qd8g5 Qc4c5
 8   00:01  0.93   Qc5c6 Qd8h4 Ra3a8 d4d3 Ra8xf8+ Nd7xf8 Re6g6 Qh4h3+ Kf1g1
Qh3h2+ Kg1f1
 8   00:01  1.29   Qc5c4 Kh8h7 Ra3a8 Nd7b8 Kf1e2 Kh7h8 Qc4c5 Kh8h7
 9   00:02  1.31   Qc5c4 Nd7b8 Ra3a7 Bf4h2 Re6g6 Bh2f4 Bd5e6 Qd8b6 Qc4a4
10   00:05  1.41   Qc5c4 Kh8h7 Ra3a8 Nd7b8 Kf1e2 Qd8d7 Ra8a7 Kh7h8 Ke2e1 Qd7f7
11   00:12  1.43   Qc5c4 Nd7b8 Ra3a7 Kh8h7 Kf1e2 Kh7h8 Qc4c5 Nb8d7 Qc5c8 Kh8h7
Qc8xd8 Rf8xd8
11   00:14  2.07   Qc5xf8+ Qd8xf8 Re6c6 Kh8h7 Rc6c8 Qf8xa3 Bd5g8+ Kh7h8 b7b8Q
g7g6 Bg8e6+ Kh8g7 Rc8g8+ Kg7f6 Be6xd7 g6xh5
12   00:16  2.95   Qc5xf8+ Qd8xf8 Re6c6 Kh8h7 Ra3a8 Nd7b8 Ra8xb8 Qf8xb8 Rc6c8
Qb8xb7 Bd5xb7 g7g5 Kf1e2
13   00:18  2.96   Qc5xf8+ Qd8xf8 Re6c6 Kh8h7 Ra3a8 Nd7b8 Ra8xb8 Qf8xb8 Rc6c8
Qb8xb7 Bd5xb7 Bf4d2 Kf1e2 Bd2f4
14   00:25  3.52   Qc5xf8+ Qd8xf8 Re6c6 Kh8h7 Rc6c8 c3c2 Ra3a1 Qf8d6 Bd5g8+
Kh7h8 Bg8f7+ Kh8h7 Bf7g6+ Qd6xg6 h5xg6+ Kh7xg6 Rc8xc2 d4d3 Rc2c7
15   01:04  13.38   Qc5xf8+ Qd8xf8 Ra3a8 Nd7b8 Re6c6 g7g6 Rc6c8 Kh8g7 Rc8xf8
Kg7xf8 Ra8xb8+ Kf8e7 Rb8g8 c3c2 b7b8Q c2c1Q+ Kf1g2 Qc1f1+ Kg2xf1 g6xh5
16   01:16  13.70   Qc5xf8+ Qd8xf8 Ra3a8 Nd7b8 Re6c6 g7g6 Rc6c8 Kh8g7 Rc8xf8
Kg7xf8 Ra8xb8+ Kf8e7 Rb8g8 c3c2 b7b8Q c2c1Q+ Kf1g2 Qc1c8 Qb8xc8 g6xh5

Movei sees it as quick but takes longer to get a reasonable score

Movei00_8_178  WB2:
 1   00:00  1.21   c5b4
 2   00:00 -1.98   c5b4 c3c2 e6c6 c2c1q c6c1 f4c1
 2   00:00 -1.97   b7b8q
 2   00:00 -1.68   b7b8q
 2   00:00 -0.64   b7b8q d7c5
 2   00:00 -0.63   c5a7
 2   00:00 -0.34   c5a7
 2   00:00 -0.64   b7b8q d7c5
 2   00:00 -0.63   b7b8r
 2   00:00 -0.64   b7b8q d7c5
 2   00:00 -0.63   c5d6
 2   00:00 -0.34   c5d6
 2   00:00 -0.64   b7b8q d7c5
 2   00:00 -0.63   c5e7
 2   00:00 -0.34   c5e7
 2   00:00  0.64   c5e7 c3c2 e7d8 f8d8
 2   00:00  0.65   c5c6
 2   00:00  0.94   c5c6
 2   00:00  1.00   c5c6 d7f6
 3   00:00  1.05   c5c6 d7b8 c6c5
 4   00:00  0.70   c5c6 d7b8 c6c4 d8g5
 4   00:00  0.71   c5c4
 4   00:00  0.82   c5c4 d7b6 c4b3 b6d5 e4d5
 5   00:00  0.55   c5c4 d7b6 c4b3 b6d5 e4d5 d8b8
 5   00:00  0.56   c5c6
 5   00:00  0.85   c5c6
 5   00:00  1.00   c5c6 d8h4 f1e2 f4c1 a3a8
 6   00:00  0.84   c5c6 d7b8 c6c4 d8h4 c4b4 h4h3 f1e2
 6   00:00  0.85   c5c4
 6   00:00  0.86   c5c4 d8h4 a3a8 h4h1 f1e2 h1b1 e6e7 b1c2 e2f1 c2d1 f1g2
 7   00:01  1.30   c5c4 d8h4 a3a8 h4h1 f1e2 h1b1 a8f8 d7f8 e6e8 b1c2 e2f1 c2c1
f1e2 c1d2
 8   00:03  1.56   c5c4 d7b8 a3a8 d8d7 c4c5 f8g8 e6e5 f4e5 d5g8 d7b7
 9   00:07  0.82   c5c4 d8h4 a3a8 f4e3 a8f8 d7f8 c4a2 d4d3 f1g2 h4g5 g2f1
 9   00:13  0.83   c5f8
 9   00:13  1.12   c5f8
 9   00:15  2.55   c5f8 d8f8 e6c6 h8h7 c6c8 f8a3 d5g8 h7h8 g8c4 h8h7 b7b8q a3a1
f1g2 a1g1 g2g1 d7b8 c4g8 h7h8 g8b3 h8h7 c8b8
10   00:23  3.73   c5f8 d8f8 e6c6 h8h7 c6c8 c3c2 a3a1 f8d6 d5g8 h7h8 g8f7 h8h7
f7g6 d6g6 h5g6 h7g6 c8c2
11   00:37  3.39   c5f8 d8f8 e6c6 h8h7 c6c8 c3c2 a3a1 f8d6 d5g8 h7h8 g8f7 h8h7
f7g6 d6g6 h5g6 h7g6 c8c2 g6f7
12   02:51  9.28   c5f8 d8f8 a3a8 d7b8 e6c6 g7g6 c6c8 h8g7 c8f8 g7f8 a8b8 f8e7
b8e8 e7e8 b7b8q e8d7 b8b5 d7d8 h5g6



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.