Author: Dann Corbit
Date: 12:05:09 09/13/01
Go up one level in this thread
On September 13, 2001 at 14:59:34, Bruce Moreland wrote:
>On September 13, 2001 at 14:18:32, Dann Corbit wrote:
>
>>Here is a playback of what happens after Rg5+
>>
>>It is very clear that this move wins also. Maybe faster than the proposed
>>solution.
>>
>>I made this output by running Yace at one hour per move on autoplay on a 950Mhz
>>Athlon.
>>
>>[Event "?"]
>>[Site "?"]
>>[Date "????.??.??"]
>>[Round "?"]
>>[White "?"]
>>[Black "?"]
>>[Result "*"]
>>[FEN "8/1p6/p7/k5R1/Prpp4/K7/1NP5/8 b - - 0 1"]
>>[SetUp "1"]
>>
>>{--------------
>>. . . . . . . .
>>. p . . . . . .
>>p . . . . . . .
>>k . . . . . R .
>>P r p p . . . .
>>K . . . . . . .
>>. N P . . . . .
>>. . . . . . . .
>>black to play
>>--------------}
>>1... b5 2. axb5 axb5 3. Rg8 c3 4. Nd3 Rb1 5. Ra8+ Kb6 6. Rd8 Ra1+ 7. Kb3
>>Rb1+ 8. Ka2 Rg1 9. Rxd4
>>{
>>PV shaky after here...
>>}
>>9... Rg8 10. Kb3 Rg1 11. Nb4 Rb1+ 12. Kxc3 Rg1 13. Rd6+ Kc7 14. Re6 Rd1 15.
>>Na6+ Kd8 16. Rb6 Rd5
>>{
>>ce is currently 394
>>}
>>*
>
>[D]8/1p6/p5R1/k7/Prpp4/K7/1NP5/8 w - -
>
>1. Rb6 Kxb6 2. Kxb4 c3 3. Nd3 1-0
>
>[D]8/1p6/pk6/8/PK1p4/2pN4/2P5/8 b - -
>
>Hard to get shorter than that.
I certainly can't argue with that picture. Clearly a won ending. I meant total
moves to a proven checkmate, but maybe most programs won't play on from there.
And now that I look at it, it is very doubtful that the other route will prove
shorter. I am still certain that it wins, though.
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