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Subject: Re: Tiger 14 cannot play endgames (not the first game) !

Author: Eduard Nemeth

Date: 10:58:04 09/04/01

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On September 04, 2001 at 13:33:12, Mike S. wrote:

>On September 04, 2001 at 04:39:13, Eduard Nemeth wrote:
>
>>(...)
>>
>>[D]4k3/ppp4p/8/5p2/3B1P2/5P2/PPn4P/5K2 w - -
>>
>>Here played Tiger 14.0 25.Bxa7 ?? :-(
>>
>>Chess Tiger 14.0 - Nemeth,E
>>
>>Analysis by Tiger 14.0:
>>
>>25.Lxa7 b6 26.a4 Kd7 27.Kf2 Sb4 28.a5 bxa5 29.Ld4 Sd5
>>  =  (0.06)   Tiefe: 11   00:00:00  101kN
>>(...)
>
>I think the move just looks worse here, than it is actually. Tiger calculates
>from the beginning, that he can free the bishop by the maneuvre a2-a4-a5. So
>it's not the simple bishop cageing problem (1.Bxa7 b6 2.a4 Kd7 3.a5 Kc6 4.axb6
>cxb6 [4...Kb7 5.bxc7] 5.Bb8 etc.).
>
>Btw. this idea doesn't work in this position:
>
>[D]5k2/pp4pp/3bpp2/1P6/8/P2KP3/5PPP/2B5 b - - 0 28
>
>Here, the bishop cannot escape because of the e3 pawn, i.e. 28...Bxh2 29.g3 h5
>30.Ke2 h4 31.Kf3 hxg3 32.fxg3 Bg1
>
>Chess Tiger sees it quickly (P3/700, 32 MB Hash):
>
>Spassky,B - Fischer,R
>5k2/pp4pp/3bpp2/1P6/8/P2KP3/5PPP/2B5 b - - 0 1
>
>Analysis by Chess Tiger 14.0:
>
>29...Bxh2 30.g3 h5 31.Ke4 h4 32.gxh4 Ke7 33.a4 Bd6 34.Bb2 f5+ 35.Kd4 Kf6
>  µ  (-0.96)   Depth: 10   00:00:00  103kN
>  =  (0.02)   Depth: 12   00:00:03  742kN
>29...Ke7 30.f4 Bc5 31.a4 a6 32.Bb2
>  =  (-0.10)   Depth: 12   00:00:20  4521kN
>29...a6 30.bxa6 bxa6 31.f4 Ke7 32.a4 Kd7 33.Bb2 Kc7 34.Ke4 Kc6 35.Bd4 Bb4 36.g3
>  =  (-0.20)   Depth: 12   00:00:25  5815kN
>  =  (-0.18)   Depth: 13   00:00:27  6161kN
>
>Fischer took the pawn, Tiger doesn't... :o)
>
>Regards,
>M.Scheidl

Thank you Mike!

Very interesting post. But, Fischer have not losing with Bxh2. This was not the
losing move.

Kind Regards,
Eduard

(german: dennoch, es würde mich brennend interessieren ob Fischer das Läufer-
opfer wirklich einkalkuliert hat. Das wird er aber niemals verraten. Ich habe
als Kind das gesamte Match damals live über Radio verfolgt - es wurden ständig
neue Züge durchgegeben wie das jetzt im Internet geschieht - und ich weiss dass
es gleich die erste Partie war.. oh wie bitter damals für einen Fischer-Fan :-)



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