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Subject: Re: Correction, how many programs can find the drawish move 26.h3! ?

Author: Jorge Pichard

Date: 00:15:53 05/13/03

Go up one level in this thread


On May 12, 2003 at 15:09:08, Jorge Pichard wrote:

>In the Second game Kasparov was very upset at the board soon after playing
>(diagram) 25...Qa1+. He realized a few moves later that White could force him to
>take a perpetual check draw with a surprising queen sacrifice. In the press
>conference he said that he thought he had a forced win with the queen check, but
>that in hindsight 25...f4 would have been stronger.
>
>
>Junior co-programmer Amir Ban quotes someone from Kasparov's team as saying
>afterwards that 25...f4 26.h3! was also a draw. We can't be sure yet what Junior
>would have played. My DJ 7 wants to play 26.Nf1, which would allow black a very
>strong attack after 26...e3.
>
>
>
>Fritz 8 and Chess Tiger 15 both changed from 26.h3! to h4?! is 26.h4?! a better
>move here?
>
>

[D]2b2rk1/Rp5p/3p1qpQ/2nP4/2P1pp2/8/P1RN1PPP/6K1 w - - 0 1

Analysis by Fritz 8:

1.h3 Bf5 2.Nb3
  =  (0.06)   Depth: 7/18   00:00:00  84kN
  =  (0.06)   Depth: 7/24   00:00:00  126kN
1.a4 e3 2.Nf1 Nd3 3.Ra2 Qd4 4.Ra5 Qxc4 5.Re2
  =  (0.09)   Depth: 7/24   00:00:00  147kN
  ³  (-0.44)   Depth: 8/25   00:00:00  352kN
1.Ra8!
  ³  (-0.41)   Depth: 8/25   00:00:00  368kN
  =  (0.06)   Depth: 8/25   00:00:00  394kN
1.h3 Qa1+ 2.Nf1 e3 3.fxe3 fxe3 4.Qxe3 Qxf1+ 5.Kh2 Qf6 6.Re2 Qh4 7.Qc3 Qf4+
  =  (0.09)   Depth: 8/29   00:00:01  492kN
  µ  (-1.00)   Depth: 9/49   00:00:02  1027kN
1.Ra3 e3 2.Nf1 Bf5 3.Rc1 Qb2
  µ  (-0.97)   Depth: 9/49   00:00:02  1229kN
  µ  (-0.94)   Depth: 9/49   00:00:02  1295kN
1.h4!
  µ  (-0.91)   Depth: 9/49   00:00:03  1565kN
  ³  (-0.44)   Depth: 9/49   00:00:04  1734kN
1.Ra8 e3 2.Nf1 Qf5 3.Rxc8 Rxc8 4.Rb2 Qf6 5.Re2 Nd3 6.fxe3
  ³  (-0.41)   Depth: 9/49   00:00:04  2086kN
  ³  (-0.28)   Depth: 10/36   00:00:06  3035kN
1.Nf1 e3 2.Nxe3 Bf5 3.Rc1 Qb2 4.Rd1 fxe3 5.Qxe3 Bd3 6.f3 Bxc4 7.Qd4
  =  (-0.25)   Depth: 10/36   00:00:07  3308kN
  µ  (-0.72)   Depth: 14/43   00:01:43  54759kN

(Pichard, MyTown 13.05.2003)




Analysis by Chess Tiger 15.0:

1.h3 Qa1+ 2.Nf1 e3 3.fxe3 fxe3 4.Qxf8+ Kxf8 5.Ra8 Qd4 6.Rxc8+ Kf7 7.Ng3
  ±  (0.88)   Depth: 8   00:00:00  112kN
  µ  (-0.78)   Depth: 9   00:00:02  717kN
1.h4 Qa1+ 2.Nf1 e3 3.fxe3 fxe3 4.Qxf8+ Kxf8 5.Ra8 Qd1 6.Rxc8+ Kf7 7.Rc7+ Kg8
8.Rb2
  =  (-0.04)   Depth: 9   00:00:03  768kN
  µ  (-0.72)   Depth: 10   00:00:04  1169kN
1.h3 Qa1+ 2.Nf1 e3 3.fxe3 fxe3 4.Qxf8+ Kxf8 5.Ra8 Qe1 6.Rxc8+ Kf7 7.Rc7+ Kg8
8.Rb2
  ³  (-0.56)   Depth: 10   00:00:05  1308kN
1.Nf1 e3 2.Ra8 Nd3 3.Rxc8 Rxc8 4.fxe3 f3 5.gxf3 Qxf3 6.Rd2 Qe4 7.Ng3
  ³  (-0.52)   Depth: 10   00:00:08  2075kN
  µ  (-0.74)   Depth: 11   00:00:11  3025kN
1.Ra8 e3 2.fxe3 fxe3 3.Qxe3 Qa1+ 4.Nb1 Qxb1+ 5.Rc1 Qd3 6.Qe7 Qd4+ 7.Kh1 Nd3
8.Rb1
  ³  (-0.66)   Depth: 11   00:00:13  3597kN
  ³  (-0.66)   Depth: 11   00:00:13  3597kN

(Pichard, MyTown 13.05.2003)



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