Author: blass uri
Date: 06:10:35 10/13/98
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On October 13, 1998 at 04:34:00, Amir Ban wrote: >On October 13, 1998 at 02:12:24, Jouni Uski wrote: > >>In SSDF game archive there is 5834 games. In 21 games there is KQ-KR ending. >>And 20 of these were won by Q side WITHOUT any use of TBs! Quite surprising - >>isn't this normally considered as difficult ending? > >I've never seen this ending in a computer-computer game where the side with the >queen failed to win, at any time control. > >This endgame is quite easy for a computer. > >Amir I found that Junior5(16 bit) can find a win against best defence(tablebases of fritz5) in tournament time control from a position of mate in 31 that I put in the board. Junior5(16 bit) did some mistakes and needed more than 80 plies to capture the rook. It is not an easy endgame for computers but it is not impossible to win practically against right defence. Humans do not know to play in both sides and the result is usually a win for the queen. The same hold for computers without tablebases. Uri
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