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Subject: Re: programs think 19...Qb2 can draw

Author: Cliff Sears

Date: 02:24:30 09/20/04

Go up one level in this thread


It appears that cautious play was not common in 1851! :-)

Thanks for the Deep analysis!

On September 19, 2004 at 22:00:04, K. Burcham wrote:

>
>
>(19... Qb2 20.Bxc5 Qxc2+ 21. Kf1 Qxc5 22. Qf4 f6)
>
> [D] rnb1k1nr/p2p1ppp/3B4/1pbN1N1P/4P1P1/3P1Q2/P1P1K3/q5R1 b kq - 0 1
>
>Deep Fritz 8:
>19...Qb2 20.Bxc5 Qxc2+ 21.Kf1 Qxc5 22.Qf4 f6 23.Nd6+ Kd8 24.Nf7+ Ke8 25.Nd6+ Kd8
>  =  (0.00)   Depth: 13/25   00:00:01  2204kN
>19...Bxg1!
>  =  (-0.01)   Depth: 13/43   00:00:31  46104kN
>19...Bxg1!
>  =  (-0.16)   Depth: 13/43   00:00:35  52445kN
>19...Bxg1--
>  =  (0.12)   Depth: 14/46   00:00:51  73499kN
>19...Bxg1 20.e5 Ba6 21.Nc7+ Kd8 22.Nxa6 Qxa2 23.Bc7+ Ke8 24.Nb4 Nc6
>  +-  (1.76)   Depth: 14/65   00:03:04  258819kN
>19...Qb2!
>  +-  (1.76)   Depth: 14/65   00:03:25  288905kN
>19...Qb2!
>  +-  (1.60)   Depth: 14/65   00:03:29  294057kN
>19...Qb2!
>  ±  (1.29)   Depth: 14/65   00:03:32  298903kN
>19...Qb2!
>  ²  (0.66)   Depth: 14/65   00:03:45  316742kN
>19...Qb2 20.Bxc5 Qxc2+ 21.Kf1 Qxc5 22.Qf4 f6 23.Nd6+ Kd8 24.Nf7+ Ke8 25.Nd6+ Kd8
>  =  (0.00)   Depth: 14/65   00:03:57  333889kN
>19...Qb2 20.Bxc5 Qxc2+ 21.Kf1 Qxc5 22.Qf4 f6 23.Nd6+ Kd8 24.Nf7+ Ke8 25.Nd6+ Kd8
>  =  (0.00)   Depth: 15/49   00:06:23  539117kN
>19...Qb2 20.Bxc5 Qxc2+ 21.Kf1 Qxc5 22.Qf4 f6 23.Nd6+ Kd8 24.Nf7+ Ke8 25.Nd6+ Kd8
>  =  (0.00)   Depth: 16/49   00:14:41  1225276kN
>19...Qb2 20.Bxc5 Qxc2+ 21.Kf1 Qxc5 22.Qf4 f6 23.Nd6+ Kd8 24.Nf7+ Ke8 25.Nd6+ Kd8
>  =  (0.00)   Depth: 17/58   00:42:12  3561212kN
>
>
> [D] rnb1k1nr/p2p2pp/5p2/1pqN1N1P/4PQP1/3P4/P7/5KR1 w kq - 0 23
>
>Shredder 8:
>23.Nd6+ Kd8 24.g5 Ne7 25.Nf7+ Ke8 26.Nd6+ Kd8 27.Nf7+ Ke8 28.Nd6+ Kd8 29.Nf7+
>  =  (0.04)   Depth: 20/57   00:26:36  929491kN
>
>Deep Fritz 8:
>23.Nd6+ Kd8 24.Nf7+ Ke8 25.Nd6+ Kd8
>  =  (0.00)   Depth: 16/64   00:05:29  475983kN
>
>
>[Event "GCG_002"]
>[Site "London"]
>[Date "1851.??.??"]
>[Round "?"]
>[White "Anderssen"]
>[Black "Kieseritzky, L."]
>[Result "1-0"]
>[ECO "C33"]
>[BlackElo "2480"]
>[PlyCount "45"]
>[EventDate "1851.??.??"]
>
>1. e4 e5 2. f4 exf4 3. Bc4 Qh4+ 4. Kf1 b5 5. Bxb5 Nf6 6. Nf3 Qh6 7. d3 Nh5 8.
>Nh4 c6 9. Nf5 Qg5 10. g4 Nf6 11. Rg1 cxb5 12. h4 Qg6 13. h5 Qg5 14. Qf3 Ng8 15.
>Bxf4 Qf6 16. Nc3 Bc5 17. Nd5 Qxb2 18. Bd6 Qxa1+ 19. Ke2 Bxg1 (19... Qb2 20.
>Bxc5 Qxc2+ 21. Kf1 Qxc5 22. Qf4 f6) 20. e5 Na6 21. Nxg7+ Kd8 22. Qf6+ Nxf6 23.
>Be7# 1-0



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