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Subject: Re: Beautiful combination...Ortueta - Sanz, Madrid 1933

Author: Mike Byrne

Date: 17:22:48 10/23/03

Go up one level in this thread


On October 23, 2003 at 18:49:15, William Kerr wrote:

>On October 23, 2003 at 18:32:45, Mike Byrne wrote:
>
>>On October 23, 2003 at 16:28:03, Darren Rushton wrote:
>>
>>>[D] 8/pR4pk/1b6/2p5/N1p5/8/PP1r2PP/6K1 b - - 0 1
>>>
>>>1...Rxb2!! 2.Nxb2 c3 3.Rxb6 (or 3.Nd3 c4+ 4.Rxb6 cxd3 etc.) 3...c4! This move,
>>>and the next, are not obvious at all. 4.Rb4 a5! (The crux of the combination
>>>and, as Sanz later said, the most difficult move to find) 5.Nxc4 c2 and black
>>>won in a few more moves.
>>>
>>>So does Fritzy find 1...Rxb2!! (very likely) but more importantly,
>>>3...c4!
>>>and 4...a5!
>>>
>>>let's see.
>>>
>>>Daz
>>
>>PCG 1.5 Dell Axim 400 16 Mhz (oc 600 Mhz) finds Rxb2 in 2:19 at node 12,442,531
>>89,514 nps.
>>
>>btw  - this Axim 400 running at 600 Mhz is  a refurbished model!
>
>amd = athlon 1.7 GHZ
>all else P2 300 MHz
>except sapphire II of course
>
>ruffian1.0 1:58 0.48, 2:08 +2.08
>yace 1:10 1.40, 2:20 1.80 13 ply
>crafty 3:05
>cm6k sel=10 35 min -2.08
>pocket fritz 20 min no solve
>uscf 7 min no solve
>bringer 1:41 Rxb2 +1.34, 5:00 +2.14
>crafty amd 6:42
>ruffian 1.0.1 amd 16 sec
>rebel10 15:26 0.24 Bd8, no solve
>yacepdb 1:30 +1.30
>sapphire ii 0:08, 10:00 -0.07, 2:38:00 0.84
>cm9k 39:58 -1.96 Rxb2
>fritz532 3:34  0.19 Bd8, 8:10 14/32 0.09 Bd8
>cm9k 39:58 -1.96
>cm9k amd 1.7 Ghz 4:04
>
>Bill

Pocket PC Ruffian 1.0.4  found Rxb2 in just over 12 minutes.

Pocket Fritz 2 (Shredder 7) foound Rxb2 at 8:49 with just over 16.7M nodes
searched ~31K nps

Same Axim as above with CG 1.5  OC to 600 Mhz



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