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Subject: Re: Understanding You Chess, Position (CM9_Judge II)

Author: Kurt Utzinger

Date: 12:23:37 09/11/04

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On September 11, 2004 at 13:18:08, Dan Andersson wrote:

>[D]r1bq1rk1/pp3pp1/2p1n2p/4PN2/1b6/2NB3P/PP3PP1/R2QR1K1 w - - 1 21
> Rizzitano 2485 - Wolfe 2353, Cambridge 1984
> The position is from 'Understanding Your Chess' by James Rizzitano. He played
>21. Qg4!! without realizing the bishop was hanging. One kindly interpretation
>might be to argue that his pattern recognition overrode any calculation effort
>:) I can recommend the book for both humans and as a source of test positions
>for both find and avoid moves.

The King 3.23  UCI1: (CM9_Judge II, Arena 1.08, Pe 1.8/64 MB hash)
 3   00:00  0.30   a3 Bc5 Ne4 Bd4
 4   00:00  0.20   a3 Bxc3 bxc3 Nf4 Qg4 Bxf5 Bxf5
 4   00:00  0.31   Rc1 Re8 a3 Nf4 Qg4 Bxf5 Bxf5
 5   00:00  0.22   Rc1 Nf4 Qg4 Bxf5 Bxf5 Qd2 Rcd1
 6   00:00  0.02   Rc1 Nf4 Qg4 Qg5 Qxg5 hxg5 Bc2 Be6 Rcd1
 6   00:00  0.08   a3 Bxc3 bxc3 Nf4 Qg4 Bxf5 Bxf5 Qd2 Rad1
 6   00:00  0.15   Qd2 Qg5 Qxg5 Nxg5 Rad1 Rd8 Bc2 Rxd1 Rxd1 Bxf5 Bxf5 Bxc3 bxc3
 7   00:01  0.07   Qd2 Qg5 Qxg5 Nxg5 Rad1 Rd8 Bc2 Bd7
 7   00:03  0.12   Nd6 Qg5 Qf3 Qf4 Qe4 Qxe4 Rxe4 Bc5 Nf5
 7   00:04  0.17   Qg4 Qxd3 Rad1 Bxc3 Nxh6+ Kh8 Nf5 Qxf5 Qxf5 Bxe1 Rxe1
 8   00:05 -0.70   Qg4 Qxd3 Nxh6+ Kh8 Qxb4 gxh6 Rad1 Qg6 Ne4 Rg8
 8   00:07  0.00   Nd6 Qg5 h4 Qd8 Nf5 Bxc3 bxc3 Nf4 Qg4 Bxf5 Bxf5
 8   00:08  0.08   Qd2 Qg5 Qxg5 Nxg5 Rad1 Rd8 Bc2 Bd7 Kh1
 8   00:14  0.20   Bc2 Nf4 Qg4 Qg5 Qxg5 hxg5 Rad1 Be6 Nd6 b5
 8   00:15  0.23   Qf3 Ng5 Qe2 Bxf5 Bxf5 Qd4 Rad1 Qf4 Qg4
 9   00:24  0.25   Qf3 Ng5 Qe2 Qb6 Rad1 Rd8 h4 Ne6 Qg4 Kh8
10   00:48  0.34   Qf3 Ng5 Qg3 Bxf5 Bxf5 Qa5 h4 Ne6 Bxe6 fxe6 Qg4 Bxc3 Qxe6+ Kh8
bxc3 Qxc3
11   01:45  0.29   Qf3 Ng5 Qg3 Bxc3 bxc3 Bxf5 Bxf5 Qd5 h4 Ne6 Red1 Qc4 Rab1 Qe2
11   05:02  1.23   Qg4 a5 Nxh6+ Kh8 Nf5 Qg5 Qxg5 Nxg5 Nd6 b5 a4 bxa4 Nxc8 Rfxc8
Rxa4





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