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Subject: Re: Deep Junior was out book, not out played!

Author: Uri Blass

Date: 23:05:38 01/26/03

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On January 26, 2003 at 22:45:57, Mark Young wrote:

>On January 26, 2003 at 22:20:46, Eduard Nemeth wrote:
>
>>On January 26, 2003 at 22:07:32, Mark Young wrote:
>>
>>>Lets see what happens when Junior has white. It is clear from my point of veiw
>>>that junior was positionally lost out of book. Deep Junior was put on the ropes
>>>by a poor choice of opening against the best human player in history. All Junior
>>>could do was hang on with this type of position and hope for a mistake.
>>>
>>>It would be a mistake to judge Deep Junior from this game.
>>
>>I'm not sure that the game was after opening, lost for black!?
>>
>>I belive that Junior makes an Blunder with his move b5?? I think that here Bb7!?
>>(Fritz plays it!) have an good chance to a draw.
>>
>>But Junior is Junior and he play also aggressive b5?, and in this position
>>(against a Super GM) is such a move than an losing move! Ok?
>
>I don't know if Bb7 is much better. Look at the position black is awful. Bb7
>still looks like slow death for black.
>
>Kasparov(GM) - Deep_Junior(C)
>[d]r1b2rk1/p1qn1ppp/1ppb4/3Pp1Pn/2B1P3/2N1BN2/PPQ2P1P/2KR3R b - - 0 1
>
>Analysis by Fritz 8:
>
>13...b5 14.dxc6 bxc4 15.cxd7 Bxd7 16.Qd2 Bg4 17.Qxd6 Qxd6 18.Rxd6 Bxf3 19.Rg1 f5
>20.exf5 Rxf5
>  ²  (0.37)   Depth: 7/23   00:00:00  78kN
>13...b5 14.dxc6 bxc4 15.cxd7 Bxd7 16.Qd2 Bg4 17.Qxd6 Qxd6 18.Rxd6 Bxf3 19.Rg1 a6
>20.Rd5 Rae8
>  ²  (0.44)   Depth: 8/26   00:00:00  183kN
>13...b5 14.dxc6 bxc4 15.cxd7 Bxd7 16.Qd2 Bg4 17.Qxd6 Qxd6 18.Rxd6 Bxf3 19.Rg1 a6
>20.Rd5 Rae8
>  ²  (0.44)   Depth: 9/26   00:00:01  484kN
>13...b5 14.dxc6 bxc4 15.cxd7 Bxd7 16.Qd2 Bg4 17.Qxd6 Qxd6 18.Rxd6 Bxf3 19.Rg1 a6
>20.Rc6 Rfc8 21.Rd6
>  ²  (0.44)   Depth: 10/28   00:00:02  973kN
>13...b5--
>  ±  (0.72)   Depth: 11/28   00:00:03  1890kN
>13...b5 14.dxc6 bxc4
>  ±  (0.72)   Depth: 11/29   00:00:04  2346kN
>13...b5 14.dxc6 bxc4 15.Nb5 Qxc6 16.Nxd6 Ba6 17.Qc3 Rab8 18.Nxe5 Nxe5 19.Qxe5
>Qa4 20.Bxa7 Ra8
>  ±  (0.84)   Depth: 12/32   00:00:11  7647kN
>13...Bb7!
>  ±  (0.81)   Depth: 12/35   00:00:37  26806kN
>13...Bb7!
>  ²  (0.66)   Depth: 12/35   00:01:32  62517kN
>13...Bb7 14.dxc6 Bxc6 15.Kb1 a6 16.Nd5 Qb8 17.Nh4 b5 18.Nf5 bxc4 19.Nxd6 Bxd5
>  ²  (0.66)   Depth: 13/38   00:03:50  179812kN
>13...Bb7 14.Nh4 cxd5 15.Bxd5 Bc5 16.Nf5 Rac8 17.Kb1 Kh8 18.Bxb7 Qxb7 19.Qd2 Rcd8
>20.Nd5 Rc8
>  ²  (0.66)   Depth: 14/44   00:10:34  524970kN
>13...Bb7--
>  ±  (0.94)   Depth: 15/40   00:14:00  701128kN
>13...Bb7 14.dxc6 Bxc6
>  ±  (0.94)   Depth: 15/50   00:19:01  965554kN
>13...b5!
>  ±  (0.91)   Depth: 15/50   00:21:50  1116781kN
>13...b5 14.dxc6 bxc4 15.Nb5 Qxc6 16.Nxd6 Ba6 17.Qc3 Rab8 18.Nxe5 Nxe5 19.Qxe5
>Qa4 20.Kb1
>  ±  (0.78)   Depth: 15/50   00:22:28  1150074kN
>13...b5 14.dxc6 bxc4 15.Nb5 Qxc6 16.Nxd6 Ba6 17.Qc3 Rab8 18.Nxe5 Nxe5 19.Qxe5
>Qa4 20.Kb1
>  ±  (0.78)   Depth: 16/43   00:26:52  1378581kN
>13...b5 14.dxc6 bxc4 15.Nb5 Qxc6 16.Nxd6 Bb7 17.Rd2 Nf4 18.Bxf4 exf4 19.Rhd1 Nb6
>20.Qc3
>  ±  (0.87)   Depth: 17/48   00:38:06  1975394kN
>13...Bb7!
>  ±  (0.84)   Depth: 17/48   01:17:26  4054605kN
>13...Bb7 14.dxc6 Bxc6 15.Nb5 Bxb5 16.Bxb5 Nc5 17.b4 Nxe4 18.Bc6 Nc3 19.Qxc3 Bxb4
>20.Qc2 Rac8
>  ±  (0.78)   Depth: 17/48   02:35:57  8119417kN
>
>(Young, MyTown 26.01.2003)

I think that in the last line 17...Ne6 is better than 17...Nxe4 but I do not
know if we can trust the main line of Fritz except the first move.

I do not like 14.dxc6 that is suggested by Fritz8's main line but I do not find
convincing alternative for white.
It may be interesting to see what programs play with white after 13...Bb7
but unfortunately I can find no win for white after that move and it seems more
and more to me that Junior had good drawing chances with Bb7.

Uri



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