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Subject: Re: A test position.

Author: Roy Eassa

Date: 12:58:48 09/28/01

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On September 28, 2001 at 15:38:29, Roy Eassa wrote:

>On September 28, 2001 at 14:45:04, Mogens Larsen wrote:
>
>>An endgame position from Informator 80.
>>
>>[D]7k/6p1/p4p1p/2p5/1pPP4/1P3R1K/r7/B7 w - - bm dxc5; id "Gabdushev-Hasangatin,
>>Bor 2000";
>>
>
>
>Gambit Tiger 2.0 on Athlon 1.2 sees the move as a draw in 38 seconds, as an
>advantage in 1:13, and as a win in under 3 minutes:
>
>00:00:00.0	-0.41	10	134349	Rf1 cxd4 Bxd4 Rd2 Rf4 Rd3+ Kg4 Rxb3 c5 Kh7 c6 Kg6
>
>00:00:00.8	-0.42	11	286280	Rf1 cxd4 Bxd4 Rd2 Rf4 Rd3+ Kg4 Rxb3 c5 Kh7 c6 Kg6 c7
>h5+ Kh4
>
>00:00:01.5	-0.34	12	658094	Rf1 cxd4 Bxd4 Rd2 Bg1 Rd3+ Kg4 Rxb3 Ra1 Rc3 c5 b3
>Rxa6 b2 Rb6
>
>00:00:04.6	-0.30	13	1512375	Rf1 cxd4 Bxd4 Rd2 Rf4 Rd3+ Kg2 Kg8 Kf2 Rxb3 c5 Kf7
>c6 Ke6 c7 Kd7
>
>00:00:10.0	-0.21	14	3726158	Rf1 cxd4 Bxd4 Rd2 Bc5 Rd3+ Kg4 Rxb3 Kf5 a5 Ra1 Rg3
>Rxa5 b3 Ra8+ Kh7 Bd4
>
>00:00:26.8	-0.27	15	9328712	Rf1 cxd4 Bxd4 Rd2 Bc5 Rd3+ Kg4 Rxb3 Kf5 a5 Ra1 Rg3
>Rxa5 b3 Ra8+ Kh7 Bd4 h5
>
>00:00:37.8	0.00	15	13331825	dxc5 Rxa1 Rd3 Ra5 Rd8+ Kh7 Rd5 Ra3 Rd3 Ra5 Rd5
>
>00:00:47.6	0.00	16	16625329	dxc5 Rxa1 Rd3 Ra5 Rd8+ Kh7 Rd5 Ra3 Rd3 Ra5 Rd5
>
>00:01:12.9	0.90	17	25628599	dxc5
>
>00:02:26.3	0.90	18	53705717	dxc5 Rxa1
>
>00:02:55.6	1.80	18	63993088	dxc5


Fritz 6 takes longer to see the win:

1.Rxf6-- gxf6
  ³  (-0.53)   Depth: 1/4   00:00:00
  -+  (-3.37)   Depth: 1/4   00:00:00
1.dxc5! Rxa1
  -+  (-2.31)   Depth: 1/4   00:00:00
  -+  (-1.56)   Depth: 1/4   00:00:00
1.Rf5! Rxa1 2.Rxc5
  µ  (-1.22)   Depth: 1/4   00:00:00
  µ  (-1.12)   Depth: 1/4   00:00:00
1.Rf1 cxd4 2.Bxd4 Rd2 3.Bxf6 gxf6 4.Rxf6 Rd3+ 5.Kg4 Kg7
  =  (-0.03)   Depth: 1/4   00:00:00
  µ  (-0.87)   Depth: 14/28   00:00:05  4909kN
1.dxc5! Rxa1 2.Rd3 Ra5 3.Rd5 Ra3 4.c6 Rxb3+ 5.Kg2 Rc3
  µ  (-0.84)   Depth: 14/28   00:00:08  7963kN
  +-  (1.72)   Depth: 19/40   00:06:12  366069kN



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