Author: Ferdinand S. Mosca
Date: 04:36:02 11/25/00
Go up one level in this thread
On November 25, 2000 at 06:11:21, Uri Blass wrote:
>On November 25, 2000 at 05:52:02, Ferdinand S. Mosca wrote:
>
>>On November 25, 2000 at 04:38:43, Timothy J. Frohlick wrote:
>>
>>>On November 25, 2000 at 04:16:29, Ferdinand S. Mosca wrote:
>>>
[D]r3k2r/pp2ppbp/1q4p1/2npP3/5P2/2P5/PP4PP/RNBQR2K w
>>>
>>>>There is a program that see 1. Be3, It is found in about 12 min. I still have to
>>>>fininsh it up to 20 min.
>>>>
>>>>Dinan
>>
>>
>>The first time Be3 is considered, 715.80 sec or 11.93 min
>>
>>12 -30 71580 129298142 t+ 1.Be3 Qxb2 2.Bxc5 Qxa1 3.Qa4+ Kf8 4.Bxe7+ Kg8 5.e6
>>fxe6 6.Qd7 Be5 7.fxe5 Qxb1 8.Rxb1 a6 {770}
>>
>>
>>
>>12 -23 82524 149135399 t 1.Be3 Qxb2 2.Bxc5 Qxa1 3.Qa4+ Kf8 4.Bxe7+ Kg8 5.e6
>>Bxc3 6.exf7 Kg7 7.f8=Q+ Raxf8 8.Bxf8+ Rxf8 9.Rd1 Bf6 10.Qd7+ Kh8 11.Qxd5 {-10}
>>
>>
>>
>>12 -23 89463 161202417 . 1.Be3 Qxb2 2.Bxc5 Qxa1 3.Qa4+ Kf8 4.Bxe7+ Kg8 5.e6
>>Bxc3 6.exf7 Kg7 7.f8=Q+ Raxf8 8.Bxf8+ Rxf8 9.Rd1 Bf6 10.Qd7+ Kh8 11.Qxd5 {-10}
>>
>>
>>This is at 1253.58 sec
>>
>>12 -23 125358 232208158 f. 1.Be3 Qxb2 2.Bxc5 Qxa1 3.Qa4+ Kf8 4.Bxe7+ Kg8 5.e6
>>Bxc3 6.exf7 Kg7 7.f8=Q+ Raxf8 8.Bxf8+ Rxf8 9.Rd1 Bf6 10.Qd7+ Kh8 11.Qxd5 {-10}
>>
>>The program is Yace 0.23.20 at P3 450
>>
>>Dinan
>
>4.Qc2 is typical for humans when 4.Bxe7+ is typical for chess programs.
>The main line shows that yace does not understand that Qxb2 is bad.
>
>Uri
2...Qxb2 is really tempting, even for humans specially on blitz. However Yace
does avoid 2...Qxb2?? only after more than 8 min of search.
[D]r3k2r/pp2ppbp/1q4p1/2npP3/5P2/2P1B3/PP4PP/RN1QR2K b kq - 0 1
12 17 51652 100029670 t+ 1...Qc6 2.Bxc5 Qxc5 3.Nd2 O-O 4.Nb3 Qc6 5.Qe2 Rac8
6.Qa6 bxa6 7.Rab1 {1010}
Dinan
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