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Subject: Re: Rebel 10 low tactical behavior

Author: Ernst Walet

Date: 07:32:28 11/17/98

Go up one level in this thread


On November 17, 1998 at 08:58:08, CONNAT wrote:

>On November 15, 1998 at 17:03:30, Oreo Kostas wrote:
>
>>On November 15, 1998 at 11:49:08, Oreo Kostas wrote:
>>
>>>Yesterday i decided to put Rebel 10 to a test that i thought was hard but didnt
>>>imagine that Rebel will disappoint me so much.
>>>I had Rebel10 play a GM friend of mine(his rating will be 2565 in January
>>>listings) 10 10 minute games.I was excpecting Rebel to win this match allthough
>>>John(my friend) is playing amzingly well even at low time controls.The result
>>>was
>>>3 draws
>>>2 wins for Rebel
>>>5!!!Losses.
>>>But what is more amazing is that it was smashed in tactical play with sacrifices
>>>any time wanted by the audience (we were 5 people watching him)
>>>But what made me really angry is the last game.John tried to play as
>>>eccentrically as he could,in order to prove me that rebel was really weak at
>>>tactics.
>>>Unfortunately  I dont remember all the games ,i thought that Rebel has an
>>>autosave feature like Fritz,but look at a fragment from the lst Game.
>>>
>>>White:Pawns a2,b2,c2,e4,f4,g2,h4,Rooks d1,h3,Bishops d3,g5,Knight d4,g3,Queen f3
>>>Black:Pawns a6,b4,d6,e6,f7,g7,h6,Rooks a8,f8,Bishops b7,e7,Knight f6,d7,Queen c7
>>>
>>>Blach=Rebel 10 to move
>>>
>>>now black played
>>>1..Qd8??!!2.Ngf5?!(this move is bad but look at Rebels answers)ef5 3.Nf5 hg5??
>>>impossible mistake 4.hg5 Re8 5 Rdh1 and rebel saw that he is mate in 5 at once
>>>
>>>I later let Rebel think at move 3 for a while but after 4 minutes it could not
>>>find mate in 7 nor even see that this move is leading in to trouble.
>>>I tried many different settings but in vain.
>>>I later put the excact same position in fritz 5.16.Fritz sees that hg5 is bad
>>>(it actually never plays QD8)after a few seconds.
>>>
>>>
>>>My system configutarion
>>>Pentium II 300
>>>128MB Ram.
>>>
>>>Any comments??
>>>
>>>I really will try to reproduce some of the games
>>
>>
>>
>>
>>I forgot the Kings
>>The white King is on b1
>>the black King on g8
>
>
>I just tried the position on my Cyrix MX 233 (512 Ko HT).
>
>I use the default configuration except Style=Active.
>
>It plays 1 .. Qd8 (Ok not spectacular but not a losing move...). The real bad
>move was of course 3 .. hxg.
>
>With these settings, in blitz mode, when I play the whole sequence of moves, it
>plays (a) sometimes 3 .. Kh8 in few seconds or (b) 3.. Nc5 ( < 15 s) if he pass
>over Kh8 (depend of hash tables perhaps) -> It *never* considers 3 .. hg with
>this setting (That is much better !).
>
>If you set back style=Normal ("default setting"), it considers 3 .. hg then
>plays it in few seconds (blitz level).
>
>
>
>Conclusion : Keep all default settings including Anti-GM (Smart or Strong) but
>*only* change Style=Active -->> it is much more the real Rebel10 than Combo off,
>Gm Off and Style=Defensive :-)
>
>I try to understand : the move Nc5 is much active of course, and much
>complicated for white... but I don't understand 3 .. Kh8 which isn't more active
>than 3 .. hg ; just more safe :-)
>
>Then Conclusion bis : a more Active setting gives  (a) one more active move (3
>.. Nc5) or (b) one more safe move (3 .. Kh8)   :-). Try to understand!

I found out that it rejects hxg5 in two seconds on a K6-200 when turning anti-GM
off and leaving the rest default.

Ernst-Jan



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