Author: Sune Larsson
Date: 10:00:48 08/23/02
Go up one level in this thread
On August 23, 2002 at 11:26:56, Uri Blass wrote: >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 I forgot - to make the original position a test position, just put the c7 pawn on c6 instead... Then black's 14.-Rxe3?? is losing right off. /S
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