Author: Uri Blass
Date: 03:30:44 01/28/05
Go up one level in this thread
On January 27, 2005 at 19:30:05, Anthony Cozzie wrote: >On January 27, 2005 at 17:50:13, Richard Harrison wrote: > >>On January 27, 2005 at 17:40:47, Ricardo Gibert wrote: >> >>>On January 27, 2005 at 16:37:11, Richard Harrison wrote: >>> >>>>In the following position, Shredder 8 plays the blunder move 66. Qxf4?? This >>>>move loses quickly. [After 15 minutes of thinking, still likes Qxf4] >>>> >>>>S7.04 does not deviate from 66. Qb2 and recognizes the draw instantly. Ruffian >>>>1.05 also plays Qb2 (0.00) >>>> >>>>What does your Shredder 8 play? >>>> >>>>[D]8/8/8/2K5/1Q3pP1/4nP2/3pk3/8 w - - 0 66 >>> >>>KQNKQ is generally an easy draw with some exceptional cases. Qxf4 reaches such >>>an ending with 2 extra pawns to boot, so I can't fault Qxf4. I can't see >>>anything particularly wrong with the choice. Why do you think this is a blunder? >>>Bear in mind that engines might return a large negative score in endings that >>>are easy draws. >> >>Yes, I do agree with you. After 66. Qxf4 d1(Q), white will have a difficult >>time just trying to gain a draw. 66. Qb2 draws instantly. >> >>Apparently, from other responses, S8 in the ChessBase GUI does play 66. Qb2. >>I'd like to find out from someone using the classic GUI what Shredder prefers. > > >Drawing Q vs QN is not really that difficult, especially for a computer with >5-man tables ;) > >anthony Yes but here it has to draw QPP vs QN and there may be ideas to win without capturing the pawns first. Not every KQN vs KQ is a draw and the same for KQN vs KQPP. There may be positions when the pawns of white even prevent important square from the white queen and cause the loss. I believe that the KQN vs KQPP position is a draw but I am not sure enough to call it a draw. Uri
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