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Subject: Re: The Most Difficult Tactical Combination Ever Shocking Computer Analysis

Author: Roy Eassa

Date: 16:09:45 11/30/01

Go up one level in this thread


Junior 7's solution fails is not the stipulated solution, which requires not
only Nxg6 on the first move, but the whole line including Qg6+ on the fourth
move and e6 on the fifth move.


On November 30, 2001 at 19:01:21, Slater Wold wrote:

>On November 30, 2001 at 13:34:19, ALI MIRAFZALI wrote:
>
>>The following Position is Taken from a Game Played by IGM Yuri Shulman
>>in a recent tournament in the USA:
>>[D] r1b2r2/pp1nqn1k/2pp2pb/4Pp1p/2PP1p1N/2N3BP/PPQ1B1P1/3RR1K1 w  - 1 0
>>In this position Amazingly 19.Nxg6!!! Wins by Force .However Fritz 6 does not
>>find this move however Chessmaster 8000 does! However there is a slight problem
>>Here is the line given by Chessmaster 8000 when run after about 3.5 minutes.
>
>Not really a tough problem:
>
>Deep Junior 7 - W,S
>r1b2r2/pp1nqn1k/2pp2pb/4Pp1p/2PP1p1N/2N3BP/PPQ1B1P1/3RR1K1 w - - 0 1
>
>Analysis by Deep Junior 7:
>
>1.Bxf4 Bxf4 2.e6 Qxh4
>  -+  (-2.05)   Depth: 3   00:00:00
>1.exd6 Qxd6 2.Bf2 Re8
>  =  (0.00)   Depth: 3   00:00:00  2kN
>1.exd6 Qxd6 2.Bf2 Re8
>  =  (0.00)   Depth: 3   00:00:00  2kN
>1.exd6 Qxd6 2.Bf2 Re8
>  =  (0.00)   Depth: 3   00:00:00  2kN
>1.exd6 Qxd6 2.c5 Qf6 3.Bf2 Bg7 4.Bc4
>  =  (-0.12)   Depth: 6   00:00:00  17kN
>1.exd6 Qf6 2.Bf2 Bg5 3.Nf3 Qxd6 4.Nxg5+ Nxg5 5.c5 Qf6 6.Bc4
>  =  (0.09)   Depth: 9   00:00:00  218kN
>1.exd6 Qxd6 2.c5 Qf6
>  =  (0.12)   Depth: 12   00:00:03  6817kN
>1.exd6 Qxd6 2.c5 Qf6 3.Bf2 Ng5 4.d5 Re8
>  =  (0.18)   Depth: 15   00:00:24  42816kN
>1.Nxg6 Kxg6 2.Qxf5+ Kg7 3.Bd3 Rg8 4.e6 Nf8 5.exf7 Qxf7 6.Qxf7+ Kxf7 7.Bh4 Ng6
>8.Bxg6+ Rxg6 9.Re7+ Kf8 10.Kf2
>  ²  (0.37)   Depth: 15   00:00:53  83427kN
>1.Nxg6 Kxg6 2.Qxf5+ Kg7 3.Bd3 Rg8 4.e6 Nf8 5.exf7 Qxf7 6.Qxf7+ Kxf7 7.Bh4 Ng6
>8.Bf2 f3 9.Ne4 fxg2 10.Nxd6+
>  ²  (0.58)   Depth: 17   00:02:30  294034kN
>1.Nxg6 Kxg6 2.Qxf5+ Kg7 3.Bd3 Rg8 4.e6 Nf8 5.exf7 Qxf7 6.Qxf7+ Kxf7 7.Bh4 Ng6
>8.Bxg6+ Rxg6 9.Re7+ Kf8 10.Kf2
>  ²  (0.51)   Depth: 18   00:06:50  799299kN
>1.Nxg6 Kxg6 2.Qxf5+ Kg7 3.Bd3 Rg8 4.e6 Nf8 5.exf7 Qxf7 6.Qxf7+ Kxf7 7.Bh4 Ng6
>8.Bxg6+ Rxg6 9.Re7+ Kf8 10.Kf2
>  ²  (0.51)   Depth: 18   00:09:26  1090341kN
>
>(W,  30.11.2001)



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