Author: Jeff Lischer
Date: 09:37:39 06/17/00
Go up one level in this thread
On June 16, 2000 at 19:44:14, Hans Gerber wrote:
>On June 16, 2000 at 18:18:25, Ed Schröder wrote:
>
>>On June 16, 2000 at 14:44:39, blass uri wrote:
>>
>>>[D]2rr4/1b1n1k2/3Bp3/pp4p1/2pPPp2/P4P2/1PB2KP1/R4R2 b - - 0 1
>>>
>>>The test is to avoid c3 that is not good because of b4.
>>>
>>>Nimzo7.32 failed and played c3 after 18 hours and now some moves after c3 it had
>>>to admit that Ham has more than 1 pawn advantage.
>>>
>>>I am interested in the results of other chess programs.
>>>
<snipped>
>>Rebel Century 2.0 (beta) running under EPD2DIAG plays 1..Nb6 after 2:59
>>but the score compared to 1..c3 is pretty small.
>>
>>00:11 10.00 -0.17 1..c3 2.b4 Rc4 3.bxa5 Nb8 4.Rh1 Rxd4 5.Rh7+ Kg6 6.Rxb7 Rd2+
>>00:18 10.02 -0.13 1..Nf6 2.e5 Nd5 3.Rh1 Rh8 4.Rxh8 Rxh8 5.Be4 Rh2 6.Rc1 Bc6
>>00:32 11.00 -0.13 1..Nf6 2.e5 c3 3.bxc3 Ne8 4.Rac1 Nxd6 5.exd6 Rxd6 6.Rh1 Bd5
>>7.Rh7+ Kf6
>>00:39 11.01 -0.08 1..c3 2.b4 Nb6 3.Bc5 Nd7 4.Rfd1 Nxc5 5.bxc5 Kg6 6.Rab1
>>01:02 12.00 -0.11 1..c3 2.b4 Nb6 3.Bc5 Nd7 4.Rad1 Nxc5 5.bxc5 Rh8 6.Rh1 Bc6
>>02:17 13.00 -0.13 1..c3 2.b4 Rc4 3.Rad1 Nf6 4.Bc5 Nd7 5.Rh1 Nxc5 6.dxc5 Rxd1
>>7.Rxd1 Ke7 8.Rh1 g4
>>02:59 13.04 -0.10 1..Nb6 2.e5 c3 3.bxc3 Nc4 4.Rac1 Nxd6 5.exd6+ Rxd6 6.Rh1
>>Ba6 7.Bd3
>>04:30 14.00 -0.11 1..Nb6 2.e5 c3 3.bxc3 Nc4 4.Rac1 Nxd6 5.exd6 Rxd6 6.Rh1 Ba6
>>7.Rh7
>>11:55 15.00 -0.07 1..Nb6 2.e5 Nd5 3.Rh1 Rh8 4.Be4
>>
>>PC: Ahtlon 600, 60 MB hash table.
>>
>>Ed
>
>Ok, I play 2. Bc5, and now what does REBEL CENTURY do? Nd7 again? Then I play
>Bd6. Perhaps you give me please the line if REBEL does now plan c3 again? Or a
>draw?
>
>
>Hans Gerber
Here's what I get with an overnight analysis using Rebel Century 1.2
(Anti-GM=Strong, PC: PIII 600, 60 MB hash table):
:
00:15:08 14.00 -0.15 1..c3 2.b4 Nb6 3.Bc5 Nd7 4.Rad1
axb4 5.Bxb4 Nf6 6.Rh1 g4 7.e5 g3+ (535)
00:18:24 14.01 -0.10 1..Nf6 2.e5 Nd5 3.Rh1 Rh8 4.Be4
Ba8 5.a4 b4 6.Rac1 Ne3 7.g3 (908)
00:30:46 15.00 -0.08 1..Nf6 2.e5 Nd5 3.Rh1 Rh8 4.Be4
Ba8 5.Bc5 Ne3 6.a4 bxa4 7.Bb6 Rxh1 (1530)
01:08:38 16.00 -0.05 1..Nf6 2.e5 Nd5 3.Rh1 Rh8 4.Be4
Ba8 5.Rac1 Ne3 6.Bc7 a4 (3034)
02:57:29 17.00 -0.06 1..Nf6 2.e5 Nd5 3.Rh1 Rh8 4.Be4
Ba8 5.a4 b4 6.Rac1 Rxh1 7.Rxh1 (7548)
10:55:42 18.00 -0.02 1..Nf6 2.e5 Nd5 3.Rh1 Rh8 4.Be4
If after 1. .. Nf6, White plays Be5, Rebel is perfectly happy playing for draw
by repetition:
00:00:33 11.00 -0.04 2..c3 3.b4 Nd7 4.Bd6 Rc6 5.e5
00:00:48 11.03 0.00 2..Nd7 3.Bd6
00:00:57 12.00 0.00 2..Nd7 3.Bd6
00:01:31 13.00 0.00 2..Nd7 3.Bd6
00:03:13 14.00 0.00 2..Nd7 3.Bd6
Maybe I'll try a long analysis of 1. .. c3 to see how Rebel analyses the danger
following 2. b4.
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