Author: Uri Blass
Date: 08:26:56 08/23/02
Go up one level in this thread
On August 23, 2002 at 11:14:05, Sune Larsson wrote: >On August 23, 2002 at 09:43:42, Uri Blass wrote: > >>On August 22, 2002 at 17:49:01, Sune Larsson wrote: >> >>> >>> [D]8/2p2k2/pp4p1/2p3P1/P1P2P2/1P2R2r/5K2/8 b - - 0 14 >>> >>> This position is from the game Yace-Junior 7. Here Junior saw >>> some opposition with the kings on e6-e4 or e6-g4 and evaluated >>> the pawn ending as a draw. Black played 14.-Rxe3?? and lost it >>> since white can force a passer on the k-side and then go eat the >>> pawns on the q-side. >>> >>> Test: Avoid the move 14.-Rxe3?? for black. 14.-Rh1 or similar is okey. >> >>I think that Rxe3 leads to a draw. >>I could not see a winning line after 16...a5 instead of 16...c6. > > I agree. So Junior was correct in its evaluation after 14.-Rxe3 > but had to follow up with 16.-a5, which it didn't. Black has to play > very exact to get a draw if he chooses to swap rooks. Even if white > plays a5 before Ke4, black just manages the draw. As a rule I think > it's bad for programs (and humans)to change rooks in such a position. I think that if the player can calculate and find that trading rooks lead to a draw there is no problem. a5 is obvious for positional reasons and the simple way to draw is to play it immediately after trading rooks. Uri
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