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Subject: Re: What Fritz 6(b)? 6a is faster

Author: Chessfun

Date: 08:05:53 09/01/00

Go up one level in this thread


On September 01, 2000 at 11:02:39, Chessfun wrote:

>On September 01, 2000 at 10:51:39, Chessfun wrote:
>
>>On September 01, 2000 at 07:19:58, Enrique Irazoqui wrote:
>>
>>>On September 01, 2000 at 02:40:48, C McClain Morris, Jr. wrote:
>>>
>>>>I contacted Steve Lopez and he is unaware of any Fritz 6b.
>>>
>>>Fritz 6a, 289280 bytes, 23-1-2000
>>>Fritz 6b, 290816 bytes, 10-4-2000
>>>
>>>It seems that Fritz 6a has some tablebase bugs, corrected in F6b. Aside from
>>>this, I seldom notice differences between 6a and 6b. There are exceptions, like
>>>this position:
>>>
>>>r1bqk2r/pppp1Npp/8/2bnP3/8/6K1/PB4PP/RN1Q3R b kq - 0 12; bm e8g8;
>>>
>>>On a P600E with 184MB hashtables, F6b finds 0-0 in 93 seconds, and F6a in 292.
>>>
>>>Enrique
>>
>>Seems to me 6a is faster.
>>I checked my version again as I have an opposite result but
>>the following is correct.
>>
>>This is 6B on my Cel 433
>>Bird,S - Fritz 6
>>r1bqk2r/pppp1Npp/8/2bnP3/8/6K1/PB4PP/RN1Q3R b kq - 0 1
>>
>>Analysis by Fritz 6B: April 2000
>>12...Qe7 13.Qxd5 Rf8 14.Rf1 Rxf7 15.Rxf7 Qg5+ 16.Kf3 Qe3+ 17.Kg4
>>  -+  (-1.88)   Depth: 12/34   00:00:51  13443kN
>>12...Qe7 13.Qxd5 Rf8 14.Rf1 Rxf7 15.Qxf7+ Qxf7 16.Rxf7 Kxf7 17.Nc3
>>  -+  (-1.78)   Depth: 13/39   00:02:22  37847kN
>>12...Qe7 13.Qxd5 Rf8 14.Rf1 Rxf7 15.Qxf7+ Qxf7 16.Rxf7 Kxf7 17.Nc3
>>  -+  (-1.69)   Depth: 14/43   00:08:34  131936kN
>>12...0-0
>>  -+  (-1.72)   Depth: 14/43   00:14:19  223949kN
>>
>>(Bird, Scarb 01.09.2000)
>>
>>This is 6a:
>>Bird,S - Fritz 6
>>r1bqk2r/pppp1Npp/8/2bnP3/8/6K1/PB4PP/RN1Q3R b kq - 0 1
>>
>>Analysis by Fritz 6A: Jan 2000
>>12...Qe7 13.Qxd5 Rf8 14.Rf1 Rxf7 15.Rxf7 Qg5+ 16.Kf3 Qe3+ 17.Kg4
>>  -+  (-1.88)   Depth: 12/35   00:00:56  14612kN
>>12...Qe7 13.Qxd5 Rf8 14.Rf1 Rxf7 15.Qxf7+ Qxf7 16.Rxf7 Kxf7 17.Nc3
>>  -+  (-1.78)   Depth: 13/39   00:02:26  38789kN
>>12...0-0
>>  -+  (-1.81)   Depth: 13/39   00:03:47  60037kN
>>12...0-0 13.Nxd8 Bf2+ 14.Kh3 d6+ 15.e6 Nf4+ 16.Kg4 Nxe6 17.Nf7
>>  -+  (-1.91)   Depth: 13/39   00:04:09  65038kN
>>
>>(Bird, Scarb 01.09.2000)
>>
>>Thanks.
>
>Re-tested 6b to make sure my output was right:
>
>Bird,S - Fritz 6
>r1bqk2r/pppp1Npp/8/2bnP3/8/6K1/PB4PP/RN1Q3R b kq - 0 1
>
>Analysis by Fritz 6B:
>12...Qe7 13.Qxd5 Rf8 14.Rf1 Rxf7 15.Rxf7 Qg5+ 16.Kf3 Qe3+ 17.Kg4
>  -+  (-1.88)   Depth: 12/36   00:00:55  14346kN
>12...Qe7 13.Qxd5 Rf8 14.Rf1 Rxf7 15.Qxf7+ Qxf7 16.Rxf7 Kxf7 17.Nc3
>  -+  (-1.78)   Depth: 13/40   00:02:25  38418kN
>12...Qe7 13.Qxd5 Rf8 14.Rf1 Rxf7 15.Qxf7+ Qxf7 16.Rxf7 Kxf7 17.Nc3
>  -+  (-1.69)   Depth: 14/42   00:07:12  113611kN
>
>(Bird, Scarb 01.09.2000)
>
>Still not there so I assume it will take roughly same as first post.
>So seems to me clearly in this position 6B is slower.
>
>Thanks.

At least it was faster than the first time.

Bird,S - Fritz 6
r1bqk2r/pppp1Npp/8/2bnP3/8/6K1/PB4PP/RN1Q3R b kq - 0 1

Analysis by Fritz 6B:
12...Qe7 13.Qxd5 Rf8 14.Rf1 Rxf7 15.Rxf7 Qg5+ 16.Kf3 Qe3+ 17.Kg4
  -+  (-1.53)   Depth: 10/31   00:00:10  2589kN
12...Qe7 13.Qxd5 Rf8 14.Nd2 Rxf7 15.Ne4 Ba3 16.Rhb1 Bxb2 17.Rxb2
  -+  (-1.75)   Depth: 11/32   00:00:21  5676kN
12...Qe7 13.Qxd5 Rf8 14.Rf1 Rxf7 15.Rxf7 Qg5+ 16.Kf3 Qe3+ 17.Kg4
  -+  (-1.88)   Depth: 12/36   00:00:55  14346kN
12...Qe7 13.Qxd5 Rf8 14.Rf1 Rxf7 15.Qxf7+ Qxf7 16.Rxf7 Kxf7 17.Nc3
  -+  (-1.78)   Depth: 13/40   00:02:25  38418kN
12...Qe7 13.Qxd5 Rf8 14.Rf1 Rxf7 15.Qxf7+ Qxf7 16.Rxf7 Kxf7 17.Nc3
  -+  (-1.69)   Depth: 14/42   00:07:12  113611kN
12...0-0
  -+  (-1.72)   Depth: 14/42   00:09:42  152915kN

(Bird, Scarb 01.09.2000)





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