Author: Mark Young
Date: 20:13:59 05/23/99
Go up one level in this thread
On May 23, 1999 at 22:44:04, Roger D Davis wrote: >It's only one game, certainly, but it doesn't really look like Rebel had much >understanding of the game from the time it left book (other's appraisals, not >mine), and Rebel's lose supports the argument that the micros have their own >weaknesses, and aren't yet a real match for GM players. > >So where does that leave previous opinions about a DB board for the desktop? >We'll have to see what the next months of Rebel-GM games hold, but the market >for a DB chip is starting to look better and better. > >If Rebel consistently loses to the GMs, doesn't this just set the market up for >the entry of Hsu? > >Roger This question must be answerd first: Does the new prototype Rebel 10.5 represent the current state of the art? Rebel 10.5 is untested, Rebel 10.5 has not shown itself to be in the very top class of programs as CM 6000 and Fritz 5.32 and Hiarcs 7. It is clear that Rebel 10.5 had problems (26. f4???)....but the other top programs have no problem understand the positions in (Ed's key moves shown below). 17. e3? Blocking its pieces to go the king-side. After this move Ne3, Rg3 (h3) are no longer possible. 17.e3 was a last minute decision of Rebel10.5 it had 17.Qd3 all the time. Black answers with 17..f5 and now black is the boss on the king- side. *Hiarcs7 plays the correct 17. Qd3* 21.Ra5 exd4 22.Rb5 Going for the pawn, nice manoeuvre but definitely wrong. Rebel's score dropped from 0.7 to 0.3 (or so) when it saw the danger of Qe2 but that was to few togive up the hunt for the pawn. *Hiarcs7 plays this, but so far has shown that after 22.. Qd8 23. Rxb4! wins. Not 23. exd4?! as played by Rebel* 24.Rxe8?? The main positional mistake in my opinion. After this move Rebel is definitely lost in all variations. It gives away the crucial e-line. IMO Rebel should have played 24.Qd1 *Hiarcs7 plays the Ed's correct move 24. Qd1, but I have seen no line that shows 24. Rxe8?? is losing.* 26.f4? I don't now why Rebel10.5 played this move. It's just a matter of search depth to see this move is losing material on short term. Rebel10.5 needs 12 plies to see the loss and then changes to 26.Bg2 (the good move). I tested the current REBEL-CP on this position and nowhere in the log I see the uglyf4? *Hiarcs7 plays the correct 26. Bg2!!, and no line shown so far has been able to prove a win for Black after the correct 26. Bg2*
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