Author: Joachim Rang
Date: 01:19:01 03/17/04
Go up one level in this thread
On March 17, 2004 at 04:07:12, Bas Hamstra wrote:
>On March 17, 2004 at 03:59:16, Joachim Rang wrote:
>
>>On March 16, 2004 at 18:58:46, Dann Corbit wrote:
>>
>>>See this thread:
>>>http://www.talkchess.com/forums/1/message.html?354948
>>
>>wait, wait...
>>
>>The continuation Rxf6 Qxf6 Re1 Qf5 Qxf5 gxf5 Bxd5 leads to a better endgame for
>>white. If a GM tells me, that this endgame is won for white I believe him right
>>away.
>>
>>If engines prefer Qh3 instead because they believe in the attacking chances of
>>white, it is not convincing for me. King Safety is known to be a heuristic and
>>even speculative evaluation feature, so a big value for Qh3 proves nothing.
>>Where are the continuations which lead to a forced win for white after Qh3?
>>
>>Although Shredder 8 agrees with most programs and prefers Qh3 I don't think this
>>is a prove that this move is better. If one looks at the PV there is no forced
>>win in sight.
>>
>>The additional analysis which shows better defense of black after Rxe6 shows
>>only, that Rxe6 is not a crushing attack but converts whites advantage in a won
>>endgame.
>>
>>regards Joachim
>>
>>P.S.: Two concrete questions:
>>1.) Is this position not won for white?
>>
>>[D] 2r1r3/p3bk1p/1pn2p1B/3n1p2/3P4/PB3N2/1P3PPP/4R1K1 w - - 0 4
>>
>>2.) How can white win after Qh3?
>
>Interesting discussion and analysis guys. And I couldn't agree more with your
>well put points, Joachim. I guess we need a real GM to settle this.
>
>
>Bas.
This is the position white can force after Rxe6
[D] 2r1r3/p3b2p/1pn2pkB/3B1p2/3P4/P4N2/1P3PPP/4R1K1 w - - 0 5
Some strong player should analyze if this endgame is won or only better for
white.
Maybe Qh3 wins also, Shredder 8 gives it a +1.98 on depth 23 after 8 hours on
Athlon 1500 MHz. The PV looks like:
1. Qh3 Rh8 2. Re4 Rc7 3. Rde1 Nd8 4. Nd2 f5 5. Re5 Bf6
6. Nc4 Qc6 7. R5e2 Bxd4 8. Qh4 Kg8 {1.98/23}
but I can't decide whether this is winning or not either.
regards Joachim
This page took 0.01 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.