Author: Ed Schröder
Date: 09:41:58 05/28/03
Go up one level in this thread
On May 28, 2003 at 10:37:24, Art Basham wrote:
>I was wondering if anyone else has tested Rebel 12 lately...
>
>In this position...White plays BxP ch.
>
>[D]4rrk1/2q2ppp/p1b1p3/1p1pP1B1/2n5/P1PB4/1P2QPPP/R3R1K1 w - - 0 1
>
>On my computor...
>
>Rebel 3 finds it at only 6 ply in 1:48 min.
>
>Rebel 10..... finds it at only 6 ply in just 29 sec.
>
>but Rebel 12 takes longer...
>it finds it in 5:17 minutes at 11 ply...!
>
>I am just wondering why Rebel 12 would take longer than the other
>versions...
>
>On other test positions, Rebel 12 is the fastest, but on this one, it is not...
Art,
It's because Rebel Decade 3 and Rebel 10 by default start a special "tactical
search" when it is fed with a position, I took that out later. You can more or
less simulate the "tactical search" within Rebel 12 (DOS) via the OPTION menu.
OPTIONS -> Tactical Engine
And it will find Bxh7+ within seconds, 6 seconds to be precise on an A1200.
Ed
==================
00:00:04 10.00 0.62 1.Qh5 g6 2.Qh6 f5 3.exf6 Nxb2 4.Bxg6
hxg6 5.Qxg6 Kh8 6.Bh6 Rf7 7.Bg7 (4)
00:00:06 10.08 0.62 1.Bxh7+
00:00:07 10.08 0.62 1.Bxh7+
00:00:08 10.08 4.22 1.Bxh7+ Kxh7 2.Qh5 Kg8 3.Bf6 gxf6 4.Qg4
Kh7 5.exf6 Kh6 6.f4 Qxf4 7.Qxf4 Kh7 (7)
00:00:09 11.00 4.22 1.Bxh7+ Kxh7 2.Qh5 Kg8 3.Bf6 gxf6 4.Qg4
Kh7 5.exf6 Kh6 6.f4 Qxf4 7.Qxf4 Kh7 (8)
00:00:19 12.00 5.48 1.Bxh7+ Kxh7 2.Qh5 Kg8 3.Bf6 Nxe5 4.Rxe5
Qxe5 5.Bxe5 f6 6.Bd6 (14)
00:00:24 13.00 5.44 1.Bxh7+ Kxh7 2.Qh5 Kg8 3.Bf6 Nxe5 4.Rxe5
Qxe5 5.Bxe5 f6 6.Bd6 (21)
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.