Author: Enrique Irazoqui
Date: 10:23:12 02/18/01
Go up one level in this thread
On February 18, 2001 at 01:22:38, Tanya Deborah wrote:
>
>
>
>Hi to all,
>
>This is a beautiful game by the Great Master Leonid Stein.
>I am interested to know, How many programs can avoid the fatal mistake 21.Qxh1?
>
>Deep Fritz can avoid that!!!, Deep Fritz can see that Qxb3 is better than Qxh1.
Yes, but it takes ages before it drops Qxh1. I tried it with a dual P933 and
512MB hash. On the portable with a P750 and 184MB hash I gave up after an hour.
What was your hardware and how long did it take to pick Qb3?
Stein,L - Birbrager Isaak
rn2kb1r/ppn1p1pp/2p1Ppb1/3q4/3N2P1/1QP4P/PP1N1P2/R1B1KB1R b KQkq - 0 1
Analysis by DEEP FRITZ :
12...Qxb3 13.N2xb3
± (0.72) Depth: 1/4 00:00:00
12...Qxh1 13.Qxb7 Kd8 14.Nb5 Nba6 15.Nxa7
-+ (-2.41) Depth: 5/14 00:00:00 8kN
12...Qxh1 13.Qxb7 Kd8 14.Nb5 Nba6 15.Nxa7
-+ (-2.41) Depth: 5/14 00:00:00 8kN
12...Qxh1 13.Qxb7 Kd8 14.Nb5 Nba6 15.Nxa7
-+ (-2.41) Depth: 5/14 00:00:00 8kN
12...Qxh1 13.Qxb7 Kd8 14.Nb5 Nba6 15.Nxa7
-+ (-2.41) Depth: 5/14 00:00:00 8kN
12...Qxh1 13.Qxb7 Kd8 14.Nb5 Nba6 15.Nxa7
-+ (-2.41) Depth: 5/14 00:00:00 8kN
12...Qxh1 13.Qxb7 Kd8 14.Nb5 Nba6 15.Nxa7
-+ (-2.41) Depth: 5/14 00:00:00 8kN
12...Qxh1 13.Qxb7 Kd8 14.Nb5 Nba6 15.Nxa7
-+ (-2.41) Depth: 5/14 00:00:00 8kN
12...Qxh1 13.Qxb7 Kd8 14.Nb5 Nba6 15.Nxa7
-+ (-2.41) Depth: 6/15 00:00:00 17kN
12...Qxh1--
-+ (-2.09) Depth: 7/21 00:00:00 42kN
12...Qxh1-- 13.Qxb7 Kd8 14.Nb5 Nba6 15.Nxa7 Be8
-+ (-2.03) Depth: 7/21 00:00:00 45kN
12...Qxh1 13.Qxb7 Kd8 14.Nb5 Nba6 15.Nxa7 Be8 16.Nb5
-+ (-1.97) Depth: 8/18 00:00:00 91kN
12...Qxh1 13.Qxb7 Kd8 14.Nb5 Nba6 15.Nxa7 Be8 16.Qb6 g5
-+ (-2.06) Depth: 9/22 00:00:00 235kN
12...Qxh1 13.Qxb7 Kd8 14.Nb5 Nba6 15.Nxa7 Be8 16.Qb6 g5 17.b3
-+ (-2.03) Depth: 10/25 00:00:00 460kN
12...Qxh1 13.Qxb7 Kd8 14.Nb5 Nba6 15.Nxa7 Be8 16.Nb3 Rb8 17.Nc5 g5
-+ (-1.81) Depth: 11/34 00:00:00 1090kN
12...Qxh1--
-+ (-1.50) Depth: 12/30 00:00:02 2321kN
12...Qxh1--
-+ (-1.50) Depth: 12/34 00:00:02 2944kN
12...Qxh1--
µ (-1.19) Depth: 13/32 00:00:04 5649kN
12...Qxh1-- 13.Qxb7 Kd8 14.N2f3 Bd3 15.Bf4 Qxf1+ 16.Kd2 Qxf2+ 17.Kxd3 Nba6
18.Bxc7+
µ (-0.75) Depth: 13/38 00:00:08 9671kN
12...Qxh1--
³ (-0.44) Depth: 14/46 00:00:17 19951kN
12...Qxh1-- 13.Qxb7 Kd8 14.N2f3 Bd3 15.Bf4 Qxf1+ 16.Kd2 Qxf2+ 17.Kxd3 Nba6
18.Qxc6
= (0.00) Depth: 14/46 00:00:20 23815kN
12...Qxh1 13.Qxb7 Kd8 14.N2f3 Bd3 15.Bf4 Qxf1+ 16.Kd2 Qxf2+ 17.Kxd3 Nba6 18.Qxc6
= (0.00) Depth: 15/40 00:01:03 74133kN
12...Qxh1 13.Qxb7 Kd8 14.N2f3 Bd3 15.Bf4 Qxf1+ 16.Kd2 Qxf2+ 17.Kxd3 Nba6 18.Qxc6
= (0.00) Depth: 16/43 00:02:15 160390kN
12...Qxh1--
² (0.47) Depth: 17/47 00:04:30 322236kN
12...Qxh1-- 13.Qxb7 Nba6 14.f3 Kd8 15.Nxc6+ Ke8 16.Nxa7 Kd8 17.Nc6+ Ke8 18.Nb8
+- (1.44) Depth: 17/48 00:12:17 871818kN
12...Qe5+!
+- (1.41) Depth: 17/48 00:35:13 2634482kN
12...Qe5+! 13.Be2 b5 14.a4 Bd3 15.N2f3 Qe4 16.Be3 Bxe2 17.Kxe2 a6 18.Nd2
± (1.06) Depth: 17/50 01:10:12 5283527kN
12...Qxb3!
± (1.03) Depth: 17/50 01:24:03 6316541kN
12...Qxb3! 13.axb3 h5 14.f4 hxg4 15.f5 Bxf5 16.Nxf5 g6 17.Nd4 Bh6 18.b4
± (0.97) Depth: 17/50 01:51:05 8282034kN
(Irazoqui, Cadaqués 18.02.2001)
> Junior6 and Hiarcs7.32 and Fritz6 can´t avoid that...
>
>The position is very interesting, in this kind of position you can see some
>computer weak points, (the machines sometimes have so much appetite, and can´t
>see the great atack by White after move 21.
>
>Another question? Which program can find 12.Qb3! ???? (with a winning endgame)
>- because after change Queens, White is much better. I think there are no
>program that can find this move.
>
>Please look this game, and post your results here.
>
>I will like to know what think Gambit Tiger, Rebel, Shredder, Crafty, Gandalf
>and other strong programs.
>
>
>
>[Event "Moscu, 1966 -Spartakiada"]
>[Date "1966.02.17"]
>[Round "?"]
>[White "Stein, Leonid"]
>[Black "Birbrager Isaak"]
>[Result "1-0"]
>[ECO "B10"]
>[PlyCount "43"]
>[EventDate "2001.02.17"]
>
>1. e4 c6 2. d3 d5 3. Nd2 dxe4 4. dxe4 Nf6 5. Ngf3 Bg4 6. h3 Bh5 7. e5 Nd5 8. e6
>f6 9. g4 Bg6 10. Nd4 Nc7 11. c3 Qd5 12. Qb3 12... Qxh1 $4 {A big mistake!,
>Black should have change Queens. (Dxb3). Now with this Rook sacrifice, White
>is winning! -(Stein.)} 13. Qxb7 13... Kd8 {
>A very dramatic and obligatory King move! - Black position is hopeless!} 14.
>N2f3 Bd3 15. Bf4 $1 {A very fine move!} 15... Qxf1+ 16. Kd2 Qxf2+ 17. Kxd3 {
>Black is lost
>} 17... Nxe6 18. Nxe6+ Ke8 19. Qc8+ Kf7 20. Nfg5+ fxg5 21. Nxg5+
>Kf6 22. Qe6# {A beautiful mate !!} 1-0
>
>
>Three Cheers for the Great Master Leonid Stein !!!!!
>
>Tanya Deborah.
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