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Subject: Re: Fruit 2.2 finds it

Author: Joachim Rang

Date: 02:57:20 10/01/05

Go up one level in this thread


On September 30, 2005 at 16:38:22, Thomas Lagershausen wrote:

>[D]r3rbk1/1b3p2/1q1p2pp/1p1P1N2/1np1P3/3n1NRP/1P3PP1/1BBQR1K1 w - - 2 23
>
>Anand played today 23.Qd2 !! and the game was over.
>
>Any computers to find this?
>
>I tried this one, but no escape for black:
>
>[Event "WCC 2005"]
>[Site "San Luis"]
>[Date "2005.??.??"]
>[Round "3"]
>[White "Paul Feyerabend"]
>[Black "Paul Feyerabend"]
>[Result "*"]
>[BlackElo "2500"]
>[ECO "C92/26"]
>[Opening "Spanisch"]
>[Variation "Geschlossenes, Flohr-Zaitsev System"]
>[WhiteElo "2500"]
>[TimeControl "300"]
>[Termination "unterminated"]
>[PlyCount "63"]
>[WhiteType "human"]
>[BlackType "human"]
>
>1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 d6 8.c3 O-O 9.h3
>Bb7 10.d4 Re8 11.Nbd2 Bf8 12.a4 h6 13.Bc2 exd4 14.cxd4 Nb4 15.Bb1 c5 16.d5 Nd7
>17.Ra3 c4 18.axb5 axb5 19.Nd4 Qb6 20.Nf5 Ne5 21.Rg3 g6 22.Nf3 Ned3 23.Qd2 Nxe1
>24.Nxe1
>Nd3 25.Nxd3 cxd3 26.Nxh6+ Bxh6 27.Qxh6 Qc5 28.Rxg6+ fxg6 29.Qxg6+ Kh8 30.Be3 Qc7
>31.Bd4+ Re5 32.Bxd3  * with a won position
>
>the original game:
>
>[Event "WCC 2005"]
>[Site "San Luis"]
>[Date "2005.??.??"]
>[Round "3"]
>[White "Vishwanathan Anand"]
>[Black "Michael Adams"]
>[Result "1-0"]
>[ECO "C92/26"]
>[Opening "Spanisch"]
>[Variation "Geschlossenes, Flohr-Zaitsev System"]
>[TimeControl "300"]
>[Termination "normal"]
>[PlyCount "63"]
>[WhiteType "program"]
>[BlackType "program"]
>
>1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 d6 8.c3 O-O 9.h3
>Bb7 10.d4 Re8 11.Nbd2 Bf8 12.a4 h6 13.Bc2 exd4 14.cxd4 Nb4 15.Bb1 c5 16.d5 Nd7
>17.Ra3 c4 18.axb5 axb5 19.Nd4 Qb6 20.Nf5 Ne5 21.Rg3 g6 22.Nf3 Ned3 23.Qd2 Bxd5
>24.Nxh6+ Bxh6 25.Qxh6 Qxf2+ 26.Kh2 Nxe1 27.Nh4 Ned3 28.Nxg6 Qxg3+ 29.Kxg3 fxg6
>30.Qxg6+
>Kf8 31.Qf6+ Kg8 32.Bh6 { Adams resigned.}  {} 1-0
>
>TL


but it needs quite long even on Ahtlon 64 2400 MHz. Note that after 23.Qd2 Nxe1!
24.Nxe1 Ra1! draws:


r3rbk1/1b3p2/1q1p2pp/1p1P1N2/1np1P3/3n1NRP/1P3PP1/1BBQR1K1 w - -

Engine: Fruit 2.2 (512 MB)
by Fabien Letouzey


10/28  0:02   -1.22    1.Re2 Nxc1 2.Qxc1 Ra1 3.Re3 Nd3
                       4.Qc2 Kh7 5.N5d4 Bg7 6.Rxd3 cxd3
                       7.Qxd3 (1.488.560) 690

10/28  0:02   -0.93    1.Be3 Qd8 2.Nxh6+ Bxh6 3.Bxh6 Nxe1
                       4.Nxe1 Qf6 5.Qd2 Ra4 6.b3 Ra1 7.Qxb4 Rxb1 (2.077.916) 690

11/30  0:04   -0.67    1.Be3 Qd8 2.Nxh6+ Bxh6 3.Bxh6 Nxe1
                       4.Nxe1 Qf6 5.Qd2 Ra1 6.Bg5 Qe5
                       7.Qxb4 Rxb1 (3.439.749) 717

12/34  0:09   -0.46    1.Be3 Qd8 2.Bxh6 Nxe1 3.Nxe1 Qf6
                       4.Be3 Qh8 5.Bd4 Qh7 6.Nf3 Qh5 7.Rg4 (7.249.530) 726

13/39  0:15   -0.51    1.Be3 Qd8 2.Bxh6 Nxe1 3.Nxe1 Ra1
                       4.Bd2 Nd3 5.Nxd3 cxd3 6.Rg4 Qc7
                       7.Bc3 Qc4 8.Bd4 (11.843.200) 738

14/44  1:13   -0.63    1.Be3 Qa6 2.Bxh6 Bc8 3.N3h4 Bxf5
                       4.Nxf5 Nxe1 5.Qxe1 Nxd5 6.Bxf8 Kxf8
                       7.Qd2 gxf5 8.Qh6+ Ke7 9.exd5 Qa1
                       10.Re3+ Kd7 (52.424.241) 713

15/74  5:50   -0.45    1.Be3 Qc7 2.Nxh6+ Bxh6 3.Bxh6 Nxe1
                       4.Nxe1 Ra1 5.Ra3 Rxa3 6.bxa3 Kh7
                       7.Bf4 Na6 8.Nf3 Nc5 9.Ng5+ Kg7
                       10.Qd4+ f6 11.Bc2 (261.295.017) 745

16/74  8:23   -0.56    1.Be3 Qd8 2.Bxh6 Nxe1 3.Nxe1 Ra1
                       4.Bd2 Nd3 5.Nxd3 cxd3 6.Rg4 Qd7
                       7.Bc3 Bxd5 8.Rh4 f6 9.Bxf6 Rxe4
                       10.Rh8+ Kf7 (379.028.966) 753

16/74  12:13  -0.50    1.Rf1 Rxe4 2.Nxh6+ Bxh6 3.Bxh6 Qc5
                       4.Qd2 Nxd5 5.Bxd3 cxd3 6.Qxd3 Ne7
                       7.Nd2 Rea4 8.Nb3 Qd5 9.Qc2 Nf5
                       10.Rd1 Qc4 (548.189.724) 747

17/74  17:48  -0.37    1.Rf1 Rxe4 2.Nxh6+ Bxh6 3.Bxh6 Qc5
                       4.Qd2 Nxd5 5.Bxd3 cxd3 6.Qxd3 Ne7
                       7.Be3 Qd5 8.Qxd5 Bxd5 9.Nd4 Ra2
                       10.b3 b4 11.Rc1 Re5 (796.207.035) 745

18/74  29:49  -0.46    1.Rf1 Rxe4 2.Nxh6+ Bxh6 3.Bxh6 Qc5
                       4.Qd2 Nxd5 5.Bxd3 cxd3 6.Qxd3 Ne7
                       7.Be3 Qd5 8.Qxd5 Nxd5 9.Nd4 Re5
                       10.Bd2 b4 11.Rc1 Ra2 12.Rb3 (1.333.566.756) 744

18/74  70:40  0.00     1.Qd2 Nxe1 2.Nxe1 Ra1 3.Nxh6+ Bxh6
                       4.Qxh6 Re5 5.Bf4 Qd4 6.Rxg6+ fxg6
                       7.Qxg6+ Kf8 8.Qxd6+ Re7 9.e5 Rxb1
                       10.Qf6+ Kg8 11.Qg6+ Kh8 12.Qf6+ Kg8 (3.344.314.677) 788

19/74  101:35 0.00     1.Qd2 Nxe1 2.Nxe1 Ra1 3.Nxh6+ Bxh6
                       4.Qxh6 Re5 5.Bf4 Qa6 6.Rg4 Rxb1
                       7.Rh4 Rxe1+ 8.Kh2 Rh5 9.Rxh5 gxh5
                       10.Qg5+ Kf8 11.Qd8+ Kg7 12.Qg5+ Kf8 (4.862.950.072) 797

20/74  218:56 0.00     1.Qd2 Nxe1 2.Nxe1 Ra1 3.Nxh6+ Bxh6
                       4.Qxh6 Nxd5 5.Be3 Rxb1 6.Bxb6 Rxe1+
                       7.Kh2 Nxb6 8.Rxg6+ fxg6 9.Qxg6+ Kf8
                       10.Qf6+ Kg8 11.Qg6+ (10.710.823.767) 815

21/80  434:53 0.00     1.Qd2 Nxe1 2.Nxe1 Ra1 3.Nxh6+ Bxh6
                       4.Qxh6 Nxd5 5.Be3 Rxb1 6.Bxb6 Rxe1+
                       7.Kh2 Nxb6 8.Rxg6+ fxg6 9.Qxg6+ Kf8
                       10.Qf6+ Kg8 11.Qg6+ (21.365.988.553) 818




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