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Subject: Re: After 3. ...Nbd7 4.Nf3 e5 Rebel is in book again

Author: Marc van Hal

Date: 15:56:14 12/02/01

Go up one level in this thread


On December 02, 2001 at 13:20:26, Eelco de Groot wrote:

>So that is another reason for 4.Ng1-f3, saves a lot of work! I believe that is
>something of a Hanham set-up in the Philidor? So do you think 4.f2-f4 would be
>the stronger move? I don't know if Rebel would handle that very well, maybe that
>would best be played by gambitting Tigers.
>
>This is Q5T analysis after
>
>[Event ""]
>[Site ""]
>[Date ""]
>[Round ""]
>[White ""]
>[Black ""]
>[Result ""]
>
>1.e4 d6 2.d4 Nf6 3.Nc3 Nbd7 4.Nf3 e5  *
>
>[D]r1bqkb1r/pppn1ppp/3p1n2/4p3/3PP3/2N2N2/PPP2PPP/R1BQKB1R w KQkq e6
>
>Last Move : 4... e5 (White to play)
>
>00:00  06.00  -0.52  4..e5 5.Bg5 exd4 6.Nxd4 h6 7.Bxf6 Nxf6 8.f4
>00:00  04.02  0.59  5.Bg5 exd4 6.Nxd4 h6 7.Bh4
>00:00  05.00  0.58  5.Bg5 exd4 6.Nxd4 h6 7.Bxf6 Nxf6 8.f4
>00:01  06.00  0.51  5.Bg5 Be7 6.dxe5 Nxe5 7.Nxe5 dxe5 8.Qxd8+ Bxd8 9.O-O-O
>00:06  07.00  0.45  5.Bg5 Be7 6.dxe5 Nxe5 7.Nxe5 dxe5 8.Bc4 O-O 9.O-O
>00:08  07.01  0.55  5.Bc4 exd4 6.Qxd4 Be7 7.Bf4 Nb6
>00:19  08.00  0.54  5.Bc4 exd4 6.Qxd4 Nb6 7.Ng5 Nxc4 8.Qxc4 Qd7 9.Be3
>00:49  08.10  0.63  5.dxe5 dxe5 6.Bc4 Bd6 7.Be3 Nb6 8.Qd3 Bg4 9.Bb5+ c6
>02:17  09.00  0.75  5.dxe5 dxe5 6.Bc4 Bd6 7.Ng5
>06:48  10.00  0.61  5.dxe5 dxe5 6.Bc4 Bd6 7.Bg5 h6 8.Bh4 Nb6 9.Bxf6 Qxf6
>40:51  11.00  0.46  5.dxe5 dxe5 6.a3 Be7 7.Bc4 O-O 8.O-O c6
>46:29  11.01  0.48  5.Bc4 exd4 6.Qxd4 c6 7.Bg5 h6 8.Bh4 Be7
>49:41  11.02  0.62  5.Bg5 Be7 6.dxe5 dxe5 7.Qe2 Ng4
>
>
>Bookmove is 5.Bf1-c4.
>
> Eelco
>
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>On December 02, 2001 at 11:11:46, Eelco de Groot wrote:
>
>>On December 02, 2001 at 07:56:10, Marc van Hal wrote:
>>
>>>Someone asked me wich was the best way to play against the Lion
>>>Position reult after 1.e4,d6 2.d4,Nf6 3.Nbd7
>>>Suprisingly The lion did not stand in Rebels book
>>>
>>>It does in the Junior7 book and DeepFritz book
>>>And it is not likely Rebel wil play the best moves by it self but rather plays
>>>Nf3
>>>How come?
>>>
>>>Regards
>>>Marc van Hal
>>
>>What is interesting is that Rebel, atleast old Century 2.0, will play The Lion
>>by itself after
>>
>>
>>[Event ""]
>>[Site ""]
>>[Date ""]
>>[Round ""]
>>[White ""]
>>[Black ""]
>>[Result ""]
>>
>>1.e4 d6 2.d4 Nf6 3.Nc3  *
>>
>>Rebel Engine for ECTool. (c) Ed Schröder
>>
>>Engine version   :  REBEL CENTURY 2
>>Rebel personality :  Rebel.eng
>>Opening book file :  RebelC.mvs
>>Hash table size  :  2 MB
>>Analysis mode   :  Analyzing next move
>>Refresh interval : 500 ms
>>
>>Last Move : 3.Nc3 (Black to play)
>>
>>00:00  05.00  -0.24  3..e5 4.Nf3 Bg4 5.Bb5+ c6
>>00:01  06.00  -0.40  3..e5 4.dxe5 dxe5 5.Qxd8+ Kxd8 6.Bc4 Ke8 7.Nf3
>>00:01  06.02  -0.27  3..Nc6 4.Nf3 Bg4 5.d5 Ne5 6.Bb5+ c6
>>00:03  07.00  -0.32  3..Nc6 4.Bg5 a6 5.Nge2 Bd7 6.d5 Ne5
>>00:04  07.07  -0.30  3..Nbd7 4.Bg5 h6 5.Be3 e5 6.Bb5 c6
>>00:07  08.00  -0.30  3..Nbd7 4.Nf3 e5 5.Be3 c6 6.Bc4 Nb6 7.Bb3
>>00:14  09.00  -0.32  3..Nbd7 4.Nf3 e5 5.Bg5 Be7 6.dxe5 dxe5 7.Bc4 h6
>>00:56  10.00  -0.30  3..Nbd7 4.Bg5 h6 5.Bh4 c6 6.Nf3 e5 7.Bc4
>>02:18  11.00  -0.27  3..Nbd7 4.Bg5 h6 5.Bxf6 exf6 6.Nf3 Nb6 7.a4 a5 8.Be2
>>09:58  12.00  -0.26  3..Nbd7 4.Nf3 e5 5.Bc4 exd4 6.Nxd4 Be7 7.O-O Ne5
>>25:57  13.00  -0.29  3..Nbd7 4.Nf3 e5 5.Bg5 exd4 6.Nxd4 c6
>>
>>
>>So if Rebel thinks that 3. ..Nbd7 is a strong move, there is something to be
>>said for letting the program handle the variatian the way it thinks best. That
>>way you are likely to get moves that are suited to it's own style. I think that
>>on move four also brandnew Rebel Century Four might play 4.Bg5, on longer
>>move-times 4.Nf3. Is there somebody already who can try that with the new Rebel?
>>
>>After 3. ..Nbd7 I also looked what Q5T would play:
>>
>>
>>[D]r1bqkb1r/pppnpppp/3p1n2/8/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq -
>>
>>Last Move : 3... Nbd7 (White to play)
>>
>>00:00  05.02  0.72  4.Bb5 c6 5.Bc4 e5 6.f4
>>00:00  06.01  0.78  4.Bg5 e5 5.Bc4 exd4 6.Qxd4 Be7 7.O-O-O
>>00:01  07.00  0.67  4.Bg5 h6 5.Bh4 e5 6.d5 c6 7.f3
>>00:04  08.00  0.72  4.Bg5 e5 5.Bxf6 Nxf6 6.dxe5 dxe5 7.Qxd8+ Kxd8 8.Nf3 Bb4
>>9.Nxe5
>>00:13  09.00  0.62  4.Bg5 e5 5.Bb5 c6 6.dxe5 Nxe5 7.Bxf6 Qxf6 8.Nd5 Qd8
>>00:54  10.00  0.64  4.Bg5 e5 5.Bc4 Be7 6.f4 Nb6 7.Bb5+ c6 8.Bxf6
>>02:36  11.00  0.65  4.Bg5 e5 5.Nf3 exd4 6.Nxd4 h6 7.Bxf6 Nxf6 8.Bb5+ Bd7
>>11:55  12.00  0.57  4.Bg5 e5 5.Nf3 exd4 6.Nxd4 c6 7.f4 Qb6 8.Rb1
>>20:06  12.04  0.62  4.Nf3 e5 5.dxe5 dxe5 6.Bc4 Bd6 7.Bg5 Nb6 8.Bxf6


After 4.Nf3 Black does not have to respond with e5 here it also can play g6 and
even c6 because e5 is not a treath here you have to know much theory to play the
game with 4.Nf3




 look what happens after 4..e5 after 4.f4!? this is much more forcing

It also would be the recomandation of Nimzowitsch
White leaves a tempo in the centre so White builds up the centre
Most importantly Black can not take advantage of the weaknes on e4 in this
position as seen by the bookmoves from  theJunior 7 and Deepfritz book

But also 4.g3!? is intresting I did give this person this move as best for him
it is a 1900 rated player who likes very positinal play
And it also takes advantage of the extra move in the centre.



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