Author: Dann Corbit
Date: 13:32:40 07/10/00
Go up one level in this thread
On July 09, 2000 at 16:14:12, Tom King wrote:
>On July 09, 2000 at 08:19:46, Ed Schröder wrote:
>
>>On July 09, 2000 at 06:52:15, Michael de la Maza wrote:
>>
>>>The following position appeared in a game in the U1800 section of the World
>>>Open.
>>>
>>>[D]rnbr2k1/ppq1ppbp/6p1/1Pp1P3/2P5/P2B1N1P/2QB1PP1/4RRK1 w - - 3 22
>>>
>>>White played 22. e6!!
>>>
>>>On a P90 it takes Fritz 6 4:17:38 (that's four hours, seventeen minutes, and 38
>>>seconds) to find this move. Initially, it gets a score of +0.38. At 5:06:33
>>>the score increases to 0.56. Finally, at 6:03:33 the score goes to +0.59.
>>
>>Rebel Century 2.0 (5:46)
>>
>>Nice position, saved this one.
>>
>>Ed
>>
>>00:00 06.00 0.12 1.Be4 a5 2.Qb1 Nd7 3.e6 fxe6
>>00:01 07.00 0.13 1.Be4 a6 2.Qa4 a5 3.Qc2 Nd7 4.e6
>>00:04 08.00 0.10 1.Be4 a6 2.Qa4 a5 3.Qb3 a4 4.Qc3 Be6 5.Ng5+
>>00:06 08.01 0.11 1.Qb3 Bd7 2.Re2 a6 3.b6 Qc8 4.Ng5 Nc6
>>00:08 08.03 0.15 1.Bc3 a6 2.Bb2 axb5 3.cxb5 Bd7 4.Ng5 h6 5.Ne4
>>00:16 09.00 0.14 1.Bc3 a6 2.a4 axb5 3.axb5 b6 4.Ng5 Bb7 5.f4 e6
>>00:21 09.02 0.18 1.Be4 a6 2.Qa4 a5 3.Bf4 Nd7 4.Rd1 Ra7 5.Bd5
>>00:42 10.00 0.16 1.Be4 a6 2.a4 Nd7 3.e6 fxe6 4.a5 Nf6 5.b6 Qd6
>>01:07 10.01 0.16 1.Bc3
>>01:11 10.01 0.22 1.Bc3 e6 2.Be4 Nd7 3.Rd1 a6 4.Qa4 Rf8 5.Rfe1 Nxe5
>>02:21 11.00 0.36 1.Bc3 Qb6 2.Rd1 Nd7 3.Be4 a6 4.e6 Qxe6 5.Ba5 Re8 6.Rfe1
>>05:46 11.31 0.36 1.e6
>>05:47 11.31 0.42 1.e6 Bxe6 2.Rxe6 fxe6 3.Bxg6 hxg6 4.Qxg6 Rxd2 5.Ng5 Na6
>>6.Qf7+
>>12:11 12.00 0.56 1.e6 f5 2.Bc3 a6 3.Bxg7 Kxg7 4.Qb2+ Kg8 5.Bc2 Rd6 6.bxa6
>>
>>Athlon 600, 128 Mb
>>
>>
>[snip]
>
>looks like it's one that Rebel is getting on positional grounds. My program
>doesn't get it after several hours (she prefers the boring move a4). So can
>anyone explain the main line behind the more? Or is Rebel's PV sufficient?
Phalanx also chooses e6, and one ply earlier than Rebel. However, then it goes
back to Be4:
rnbr2k1/ppq1ppbp/6p1/1Pp1P3/2P5/P2B1N1P/2QB1PP1/4RRK1 w - -
-> soft time limit 357.14 s
-> hard time limit 6666.66 s
8 -> 0:00.96 49649 0 turns
9 72 96 49650 Qc2-b3
9 -> 0:12.62 693647 0 turns
10 57 6479 3531247 Qc2-b3 Bc8-e6 Bd2-f4 Nb8-d7 Re1-e2 Nd7-b6
10 62 11534 6201567 Bd2-c3 !
10 62 12560 6679095 Bd2-c3 Pa7-a6
10 64 21620 11315879 Pa3-a4 Pa7-a6 Pa4-a5 Pa6xb5 Pc4xb5 Bc8-e6
Bd2-c3 Be6-d5 Nf3-g5 Ph7-h6 Pb5-b6
10 69 42317 21935115 Pe5-e6 !
10 72 45106 23566282 Pe5-e6 Bc8xe6 Re1xe6 Pf7xe6 Bd3xg6 Ph7xg6
Qc2xg6 Rd8-f8 Bd2-h6 Rf8-f7 Bh6xg7 Rf7xg7
Qg6-e8 Kg8-h7 Qe8-h5 Kh7-g8
10 74 54206 28112022 Bd3-e4 Pa7-a6 Qc2-a4 Nb8-d7 Pe5-e6 Pf7xe6
Bd2-a5 Nd7-b6 Qa4-b3 Pa6xb5 Qb3xb5
It might be interesting to pound the stuffings out of this one and see what
chess engines think at deep time controls and why.
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