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Subject: Re: tricky little position

Author: Tord Romstad

Date: 10:13:11 11/16/03

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On November 16, 2003 at 11:43:33, Will Singleton wrote:

>Here's a position from a recent ICC game.  The move is Rg8, but for full credit,
>the pv should show white's response as Qe3, not Bxe5.
>
>[D]2r4k/3r4/pp1pp3/2p1b2p/P1Pq1B1P/1P4Q1/N3bRP1/4R1K1 b - - 0 66

Gothmog 0.4.1, Athlon 2.0 GHz:

 1        2.44     0.00        760 Bxf4 Qxf4
 2        2.44     0.01       1405 Bxf4 Qxf4
 3        2.70     0.02       3211 Rg8 Bxe5+ dxe5 Qh2
 4        2.70     0.08       9499 Rg7 Bxe5 dxe5 Qh2
 5        2.34     0.31      47872 Rg7 Bxe5 dxe5 Qc3 Bg4
 6    <=  2.33     0.55      81111 Rg7 Bxe5 dxe5 Qh3 Bg4 Qg3
 6    <=  2.31     0.56      83965 Rg7 Bxe5 dxe5 Qh3 Bg4 Qg3
 6    <=  2.28     0.57      88129 Rg7 Bxe5 dxe5 Qh3 Bg4 Qg3
 6    <=  2.20     0.61      97006 Rg7 Bxe5 dxe5 Qh3 Bg4 Qe3
 6    <=  2.05     0.67     111289 Rg7 Bxe5 dxe5 Qh3 Bg4 Qe3
 6    >=  1.81     0.68     114908 Rg7 Bxe5 dxe5 Qh3 Bg4 Qe3
 6    >=  1.83     0.69     115105 Rg7 Bxe5 dxe5 Qh3 Bg4 Qe3
 6    >=  1.92     0.69     115195 Rg7 Bxe5 dxe5 Qh3 Bg4 Qe3
 6    <=  2.03     0.71     120765 Rg7 Bxe5 dxe5 Qh3 Bg4 Qe3
 6    >=  2.03     0.71     121236 Rg7 Bxe5 dxe5 Qh3 Bg4 Qe3
 6        2.03     0.71     121236 Rg7 Bxe5 dxe5 Qh3 Bg4 Qe3
 7    >=  2.03     0.73     124535 Bxf4 Qxf4 Qxf4 Rxf4 e5 Re4 Bd3
 7    <=  2.03     1.13     203426 Bxf4 Qxf4 Qxf4 Rxf4 e5 Rf6 Bg4
 7        2.03     1.13     203426 Bxf4 Qxf4 Qxf4 Rxf4 e5 Rf6 Bg4
 8    >=  2.03     1.71     321617 Rg8 Bxe5+ dxe5 Qh3 Bd3 Qe3 Qxh4 Qxe5+
                                   Rdg7 Qxe6
 8    <=  2.03     2.11     414568 Rg8 Bxe5+ dxe5 Qh3 Bd3 Qe3 Qxh4 Qxe5+
                                   Rdg7 Qxe6
 8        2.03     2.11     414568 Rg8 Bxe5+ dxe5 Qh3 Bd3 Qe3 Qxh4 Qxe5+
                                   Rdg7 Qxe6
 9    <=  2.02     4.03     860829 Rg8 Bxe5+ dxe5 Qh3 Bd3 Qe3 Qxh4 Qxe5+
                                   Rdg7 Qxe6
 9    <=  2.00     4.26     948494 Rg8 Bxe5+ dxe5 Qh3 Bd3 Qe3 Qxh4 Qxe5+
                                   Rdg7 Qxe6
 9    <=  1.97     4.51    1040592 Rg8 Bxe5+ dxe5 Qh3 Bd3 Qe3 Qxh4 Qxe5+
                                   Rdg7 Qxe6
 9    >=  1.91     4.65    1071889 Rg8 Bxe5+ dxe5 Qh3 Bd3 Qe3 e4 Nc1 Re8 Qh6+
                                   Rh7 Qf6+ Qxf6 Rxf6
 9    >=  1.92     4.73    1096582 Bxf4 Qxf4 Qxf4 Rxf4 e5 Rf2 Bg4 Nc3 Rg7
 9    <=  1.95     4.90    1159944 Bxf4 Qxf4 Qxf4 Rxf4 e5 Rf2 Bg4 Nc3 Rg7
 9    >=  1.95     4.90    1160747 Bxf4 Qxf4 Qxf4 Rxf4 e5 Rf2 Bg4 Nc3 Re7
 9        1.95     4.90    1160747 Bxf4 Qxf4 Qxf4 Rxf4 e5 Rf2 Bg4 Nc3 Re7
10    >=  1.95     5.73    1345252 Bxf4 Qxf4 Bg4 Re4 Qa1+ Rf1 Qg7
10    >=  1.97     5.95    1394466 Bxf4 Qxf4 Bg4 Re4 Qa1+ Rf1 Qg7
10    <=  2.02     8.97    2126297 Bxf4 Qxf4 Bg4 Re4 Qa1+ Rf1 Qg7
10    <=  2.00     9.39    2285154 Bxf4 Qxf4 Bg4 Re4 Qa1+ Rf1 Qg7
10    <=  1.97     9.87    2461856 Bxf4 Qxf4 Bg4 Re4 Qa1+ Rf1 Qg7
10        1.97     9.87    2461856 Bxf4 Qxf4 Bg4 Re4 Qa1+ Rf1 Qg7
11    >=  1.97    11.21    2764751 Bxf4 Qxf4 Bg4 Re4 Qg7 Nc3 d5 cxd5 exd5
11    >=  1.98    11.38    2806755 Bxf4 Qxf4 Bg4 Re4 Qg7 Nc3 d5 cxd5 exd5
11    >=  2.05    15.74    3840575 Rg8 Bxe5+ dxe5 Qh3 Rdg7 Rxe2 Rg3 Qh1 Rd3
                                   Re1 Rf8
11    >=  2.19    19.11    4641970 Rg8 Bxe5+ dxe5 Qh3 Rdg7 Rxe2 Rg3 Qh1 Rd3
                                   Re1 Rf8
11    <=  2.42    27.58    6658433 Rg8 Qe3 Qxe3 Bxe3 Bg4 Bf4 Bxf4 Rxf4 d5
11    <=  2.41    28.30    6917464 Rg8 Qe3 Qxe3 Bxe3 Bg4 Bf4 Bxf4 Rxf4 d5
11    >=  2.39    28.42    6952110 Rg8 Qe3 Qxe3 Bxe3 Bg4 Bf4 Bd4 Be3 Rdg7
                                   Bxd4 cxd4
11    >=  2.41    28.44    6961173 Rg8 Qe3 Qxe3 Bxe3 Bg4 Bf4 Bd4 Be3 d5 Bxd4+
                                   cxd4 Nb4 dxc4
11        2.41    28.44    6961173 Rg8 Qe3 Qxe3 Bxe3 Bg4 Bf4 Bd4 Be3 d5 Bxd4+
                                   cxd4 Nb4 dxc4
12    >=  2.41    29.95    7325863 Rg8 Qe3 Qxe3 Bxe3 Bg4 Bf4 Bd4 Be3 d5 Bxd4+
                                   cxd4 Nb4 dxc4
12    <=  2.41    49.73   12116155 Rg8 Qe3 Qxe3 Bxe3 Bg4 Bf4 Bd4 Be3 d5 Bxd4+
                                   cxd4 Nb4 dxc4 bxc4
12        2.41    49.73   12116155 Rg8 Qe3 Qxe3 Bxe3 Bg4 Bf4 Bd4 Be3 d5 Bxd4+
                                   cxd4 Nb4 dxc4 bxc4
13    >=  2.41    56.77   13853548 Rg8 Qe3 Qxe3 Bxe3 Bg4 Bf4 Bd4 Be3 e5 Rf6
                                   Bh3 Rf2 Be6
13    >=  2.42    57.50   14066784 Rg8 Qe3 Qxe3 Bxe3 Bg4 Bf4 Bd4 Be3 e5 Rf6
                                   Bh3 Rf2 Be6
13    <=  2.47     1:29   21958471 Rg8 Qe3 Qxe3 Bxe3 Bg4 Bf4 Bd4 Be3 e5 Rf6
                                   Bh3 Rf2 Be6
13    <=  2.45     1:35   23801386 Rg8 Qe3 Qxe3 Bxe3 Bg4 Bf4 Bd4 Be3 e5 Rf6
                                   Bh3 Rf2 Be6
13    <=  2.42     1:40   25645212 Rg8 Qe3 Qxe3 Bxe3 Bg4 Bf4 Bd4 Be3 e5 Rf6
                                   Bh3 Rf2 Be6
13        2.42     1:40   25645212 Rg8 Qe3 Qxe3 Bxe3 Bg4 Bf4 Bd4 Be3 e5 Rf6
                                   Bh3 Rf2 Be6
14    >=  2.42     1:51   28389548 Rg8 Qe3 Qxe3 Bxe3 Bg4 Bf4 Bd4 Be3 e5 Rf6
                                   Bh3 Rf2 Rdg7
14    >=  2.44     1:55   29354286 Rg8 Qe3 Qxe3 Bxe3 Bg4 Bf4 Bd4 Be3 e5 Rf6
                                   Bh3 Rf2 Rdg7
14    <=  2.48     3:04   46464905 Rg8 Qe3 Qxe3 Bxe3 Bg4 Bf4 Bd4 Be3 e5 Nc1
                                   Bc3
14    <=  2.47     3:22   51680152 Rg8 Qe3 Qxe3 Bxe3 Bg4 Bf4 Bd4 Be3 e5 Nc1
                                   Bc3
14    <=  2.44     3:39   56754602 Rg8 Qe3 Qxe3 Bxe3 Bg4 Bf4 Bd4 Be3 e5 Nc1
                                   Bc3 Bd2
14        2.44     3:39   56754602 Rg8 Qe3 Qxe3 Bxe3 Bg4 Bf4 Bd4 Be3 e5 Nc1
                                   Bc3 Bd2
15    >=  2.44     4:11   64726655 Rg8 Qe3 Qxe3 Bxe3 Bg4 Bf4 Bg7 b4 Rc8 bxc5
                                   Rxc5 Re4 Bf5
15    <=  2.44     7:27  113719255 Rg8 Qe3 Qxe3 Bxe3 Bg4 Bf4 Bg7 b4 Rc8 bxc5
                                   Rxc5
15        2.44     7:27  113719255 Rg8 Qe3 Qxe3 Bxe3 Bg4 Bf4 Bg7 b4 Rc8 bxc5
                                   Rxc5

Tord



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