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Subject: Re: Yet another sacrifice

Author: Bas Hamstra

Date: 12:57:09 08/09/02

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On August 08, 2002 at 21:31:19, José Carlos wrote:

>  This one should be easy for positional reasons:
>
>[D]r2q1rk1/pb1nbp2/4p2p/2ppP1pQ/N2N4/6B1/PPP2PPP/R4RK1 w - - 0 15 bm Nxe6;

Tao 5.4 < 1 second:

 9.    155      2310    690626  d4e6 f7e6 h5g6 g8h8 g6h6 h8g8 h6g6 g8h8 g6e6
                                d5d4 e6h6 h8g8 e5e6 b7c6 e6d7 c6a4 h6g6 g8h8
10     155      3130   1056373  d4e6 f7e6 h5g6 g8h8 g6h6 h8g8 h6g6 g8h8 g6e6
                                d5d4 e6h6 h8g8 e5e6 b7c6 e6d7 c6a4 h6g6 g8h8
10.    155      3460   1191301  d4e6 f7e6 h5g6 g8h8 g6h6 h8g8 h6g6 g8h8 g6e6
                                d5d4 e6h6 h8g8 e5e6 b7c6 e6d7 c6a4 h6g6 g8h8
11     165      6040   2162577  d4e6 f7e6 h5g6 g8h8 g6h6 h8g8 h6g6 g8h8 g6e6
                                h8h7 e6h3 h7g8 e5e6 d8a5 a4c3 d5d4 e6d7 d4c3
                                h3e6 f8f7
11.    165      6480   2393982  d4e6 f7e6 h5g6 g8h8 g6h6 h8g8 h6g6 g8h8 g6e6
                                h8h7 e6h3 h7g8 e5e6 d8a5 a4c3 d5d4 e6d7 d4c3
                                h3e6 f8f7
12     134     16590   6192258  d4e6 f7e6 h5g6 g8h8 g6h6 h8g8 h6g6 g8h8 g6e6
                                d7b6 a4b6 a7b6 e6h6 h8g8 h6g6 g8h8 e5e6 e7f6
                                g6h6 h8g8 c2c3 f6g7
12.    134     19060   7301296  d4e6 f7e6 h5g6 g8h8 g6h6 h8g8 h6g6 g8h8 g6e6
                                d7b6 a4b6 a7b6 e6h6 h8g8 h6g6 g8h8 e5e6 e7f6
                                g6h6 h8g8 c2c3 f6g7
13     159     35210  13847297  d4e6 f7e6 h5g6 g8h8 g6h6 h8g8 h6g6 g8h8 g6e6
                                h8g7 f2f4 c5c4 f4f5 d8e8 b2b3 e7b4 f5f6 g7h8
                                e6h3 h8g8
13.    159     38070  15379914  d4e6 f7e6 h5g6 g8h8 g6h6 h8g8 h6g6 g8h8 g6e6
                                h8g7 f2f4 c5c4 f4f5 d8e8 b2b3 e7b4 f5f6 g7h8
                                e6h3 h8g8


>  But probably the key move on the variation to know it's more than a draw is:
>
>[D]r2q1r1k/pb1nb3/4p1Q1/2ppP1p1/N7/6B1/PPP2PPP/R4RK1 w - - 0 19 bm f4;

Tao insists on first Qxe6 and then f4:

 7     124      1210    215789  g6e6!!
 7     136      1370    291312  g6e6 h8g7 f2f4 g5f4 g3f4 g7h8 e6h6 h8g8 e5e6
 7.    136      1480    334383  g6e6 h8g7 f2f4 g5f4 g3f4 g7h8 e6h6 h8g8 e5e6
 8     165      2310    657648  g6e6 h8h7 e6h3 h7g8 e5e6 d8a5 a4c3 d5d4 e6d7
                                d4c3 h3e6 f8f7
 8.    165      2690    822491  g6e6 h8h7 e6h3 h7g8 e5e6 d8a5 a4c3 d5d4 e6d7
                                d4c3 h3e6 f8f7
 9     134      4450   1502250  g6e6 d7b6 a4b6 a7b6 e6h6 h8g8 h6g6 g8h8 e5e6
                                e7f6 g6h6 h8g8 c2c3 f6g7
 9.    134      5820   2065463  g6e6 d7b6 a4b6 a7b6 e6h6 h8g8 h6g6 g8h8 e5e6
                                e7f6 g6h6 h8g8 c2c3 f6g7
10     159     13070   4970351  g6e6 h8g7 f2f4 c5c4 f4f5 d8e8 g1h1 e7b4 f5f6
                                g7h8 e6h3 h8g8
10.    159     14610   5624922  g6e6 h8g7 f2f4 c5c4 f4f5 d8e8 g1h1 e7b4 f5f6
                                g7h8 e6h3 h8g8
11     158     27570  10401134  g6e6 d7b6 a4b6 a7b6 e6h6 h8g8 h6g6 g8h8 f1e1
                                b7a6 g6h6 h8g8 e5e6 e7f6 g3e5 d8e7 e5f6 e7f6
11.    158     33120  12273362  g6e6 d7b6 a4b6 a7b6 e6h6 h8g8 h6g6 g8h8 f1e1
                                b7a6 g6h6 h8g8 e5e6 e7f6 g3e5 d8e7 e5f6 e7f6
12     179     62340  23987922  g6e6 h8g7 f2f4 a7a5 f4g5 a8a6 e6h3 e7g5 f1f8
                                g7f8 h3h8 f8f7 a1f1 f7e6 h8h3 e6e7
12.    179     69370  26980261  g6e6 h8g7 f2f4 a7a5 f4g5 a8a6 e6h3 e7g5 f1f8
                                g7f8 h3h8 f8f7 a1f1 f7e6 h8h3 e6e7

Bas.



>  What do your programs say?
>
>
>  The game:
>
>[Event "ICS rated standard match"]
>[Site "204.178.125.65"]
>[Date "2002.08.06"]
>[Round "-"]
>[White "AvernoX"]
>[Black "Dorky"]
>[Result "1-0"]
>[WhiteElo "2288"]
>[BlackElo "2327"]
>[TimeControl "3600+10"]
>
>1. Nc3 e6 2. e4 d5 3. Nf3 Nf6 4. e5 Nfd7 5. d4 c5 6. dxc5 Nc6 7. Bf4 h6 8.
>Bb5 Bxc5 9. O-O g5 10. Bg3 O-O 11. Na4 Be7 12. Bxc6 bxc6 13. Nd4 Bb7 14.
>Qh5 c5 15. Nxe6 fxe6 16. Qg6+ Kh8 17. Qxh6+ Kg8 18. Qg6+ Kh8 19. f4 gxf4
>20. Bxf4 Bh4 21. Qh6+ Kg8 22. Qxe6+ Kh8 23. Qh6+ Kg8 24. e6 Ba6 25. Qg6+
>Kh8 26. exd7 Bxf1 27. Qh5+ Kg8 28. Qxd5+ Kh7 29. Rxf1 Qf6 30. Nxc5
>{Dorky resigns} 1-0
>
>  José C.



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