Author: Kurt Utzinger
Date: 13:50:33 07/28/04
Go up one level in this thread
On July 28, 2004 at 15:54:57, John Merlino wrote:
>On July 28, 2004 at 15:31:23, John Merlino wrote:
>
>>On July 28, 2004 at 14:46:05, Kurt Utzinger wrote:
>>
>>>Wcrafty 19.15 (console mode P4 1.8) finds the solution
>>>almost instantly.
>>>Kurt
>>>
>>>[D]1knB4/8/7p/5R2/7K/8/3r4/7B w - - 0 1
>>
>>Is the solution to find 1.Rb5+ or to find the proper continuation (3.Kg4, for
>>example)?
>
>FYI, CM9_SKR on an AMD 2500 finds Rb5+ in less than one second:
>
>Time Depth Score Positions Moves
>0:00 1/3 0.58 1199 1.Rb5+ Nb6 2.Rxb6+ Kc8 3.Be4 Rxd8
> 4.Rxh6
>0:00 1/3 2.15 1376 1.Bd5 Nd6 2.Re5 Rf2
>0:00 1/4 2.21 2747 1.Bd5 Nd6 2.Re5 Nc4
>0:00 1/5 0.60 7343 1.Bd5 Nd6 2.Rh5 Rh2+ 3.Kg4 Rxh5
> 4.Kxh5
>0:00 1/6 0.60 20372 1.Bd5 Nd6 2.Rh5 Rh2+ 3.Kg4 Rxh5
> 4.Kxh5 Nf5 5.Kg4
>0:00 1/7 0.57 56760 1.Bd5 Nd6 2.Rh5 Ne4 3.Bxe4 Rxd8
> 4.Rxh6 Kc7
>0:00 1/8 0.40 131757 1.Bd5 Nd6 2.Re5 Nc4 3.Bxc4 Rxd8
> 4.Kh5 Rd4
>0:00 1/8 0.57 218570 1.Rb5+ Nb6 2.Rxb6+ Kc8 3.Bg5 Rh2+
> 4.Kg3 Rxh1 5.Bxh6 Kc7 6.Be3 Re1
>0:01 1/9 0.57 467441 1.Rb5+ Nb6 2.Rxb6+ Kc8 3.Bg5 hxg5+
> 4.Kxg5 Kc7 5.Rc6+ Kd7 6.Be4 Rd4
> 7.Bf3
>0:02 2/10 0.58 922112 1.Rb5+ Nb6 2.Rxb6+ Kc8 3.Kg3 Kxd8
> 4.Rxh6 Rd4 5.Bf3 Ke7 6.Rc6 Kd8
>0:05 3/11 0.58 1942346 1.Rb5+ Nb6 2.Rxb6+ Kc8 3.Kg3 Kxd8
> 4.Rxh6 Rd4 5.Kf2 Ke7 6.Ke3 Rd1
> 7.Rh7+ Kd6 8.Be4
>0:12 4/12 0.59 4557802 1.Rb5+ Nb6 2.Kg3 Rxd8 3.Rxb6+ Kc7
> 4.Rc6+ Kd7 5.Rxh6 Kc7 6.Rc6+ Kd7
> 7.Bd5 Re8 8.Kf4 Re2
>0:29 5/13 0.59 11225567 1.Rb5+ Nb6 2.Rxb6+ Kc8 3.Kg3 Kxd8
> 4.Rxh6 Rd4 5.Kf2 Ke7 6.Ke3 Rd6
> 7.Rh7+ Ke6 8.Be4 Rd1
>1:09 6/14 0.59 28697028 1.Rb5+ Nb6 2.Rxb6+ Kc8 3.Kg3 Kxd8
> 4.Rxh6 Rd4 5.Kf2 Ke7 6.Ke3 Rd6
> 7.Rh7+ Ke6 8.Bf3 Ke5 9.Rh5+ Kf6
>
>jm
Hi Johne
Can we be sure that 1.Rb5 Nb6 2.Rxb6 Kc8 is
the only winning line?
Kurt
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