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Subject: Re: positions to search deep for hours at 500 cpu's- another one

Author: Vincent Diepeveen

Date: 15:56:26 09/22/03

Go up one level in this thread


On September 22, 2003 at 14:02:46, Ernst Walet wrote:

pretty amazing rebel takes that long.

it has mating extensions.

Reaching 18 plies in just 36 minutes!

That either is a lot of bragging rights or drinking wodka with every move that
matters in chessplaying life...

Until proven in a world champs oppositely, i'll assume the wodka scenario :)

>On September 21, 2003 at 08:53:38, emerson tan wrote:
>>
>>
>>From the fantastic game Kasparov - Topalov 1999, here Kasparov played  28. Qc3.
>>Kavalek found 28. Ra7!!
>>
>>[D]b2r3r/4Rp1p/p2q1np1/1p1P4/kP1Q4/P4PPB/2P4P/1K6 w - - 0 28
>>
>>Key move 28 Ra7!!
>
>
>Cute position.  Rebel 12, Shredder 7.04 1.2DP5 and Hiarcs 9 all find Ra7.
>
>Ernst.
>
>
>
>Rebel 12
>
> b2r3r/4Rp1p/p2q1np1/1p1P4/kP1Q4/P4PPB/2P4P/1K6 w - -
>
> 00:00:00   1.00  -9.98  1.Be6 Qxe7
> 00:00:00   1.01  -4.68  1.Rxf7 Nxd5
> 00:00:00   1.12  -4.29  1.Qe3 Nxd5
> 00:00:00   2.00  -4.53  1.Qe3 Bxd5
> 00:00:00   3.00  -5.35  1.Qe3 Qxd5 2.Qc1 Qxf3
> 00:00:00   3.01  -4.73  1.Re3 Nxd5 2.Rd3
> 00:00:00   3.06  -4.70  1.Re1 Bxd5 2.Qe3
> 00:00:00   3.08  -4.69  1.Re5 Bxd5 2.Qe3
> 00:00:00   3.14  -4.49  1.Qd3 Bxd5 2.Qe3
> 00:00:00   4.00  -6.62  1.Qd3 Qxd5 2.Qc3 Qd1 3.Kb2
> 00:00:00   4.01  -4.95  1.Re5 Bxd5 2.Qc3 Rhe8
> 00:00:00   5.00  -6.08  1.Re5 Bxd5 2.Qe3 Rhe8 3.Rxe8 Nxe8
> 00:00:00   5.01  -5.00  1.Qd3 Bxd5 2.Re2 Qc6 3.Ka1 Bxf3
> 00:00:00   6.00  -5.73  1.Qd3 Bxd5 2.Re3 Rhe8 3.Rxe8 Nxe8 4.Kc1
> 00:00:00   6.05  -5.73  1.Qe3
> 00:00:00   6.05  -3.57  1.Qe3 Qxd5 2.Ra7 Bb7 3.Rxb7 Qd1 4.Kb2
> 00:00:01   7.00  -4.23  1.Qe3 Qxd5 2.Ra7 Bb7 3.Kb2 Qd4 4.Qxd4 Rxd4
> 00:00:01   7.08  -4.23  1.Qc3
> 00:00:01   7.08  -3.27  1.Qc3 Qxd5 2.Ra7 Bb7 3.Rxb7 Ne4 4.Qb3 Qxb3
> 00:00:01   8.00  -2.89  1.Qc3 Qxd5 2.Ra7 Bb7 3.Rxb7 Qc4 4.Qxf6 Rd1
>                         5.Kb2
> 00:00:01   9.00  -3.08  1.Qc3 Qxd5 2.Ra7 Bb7 3.Rxb7 Rhe8 4.Rc7 Qd1
>                         5.Ka2
> 00:00:02  10.00  -2.82  1.Qc3 Qxd5 2.Ra7 Bb7 3.Rxb7 Qc4 4.Qxf6 Rd1
>                         5.Kb2 Ra8 6.Rxf7
> 00:00:03  11.00  -2.82  1.Qc3 Qxd5 2.Ra7 Bb7 3.Rxb7 Qc4 4.Qxf6 Rd1
>                         5.Kb2 Ra8 6.Rxf7
> 00:00:09  12.00  0.00  1.Qc3 Qxd5 2.Ra7 Bb7 3.Rxa6 Bxa6 4.Qc7 Qb3
>                        5.cxb3 Kxa3 6.Qc1 Kxb4 7.Ka2 Nd5 8.Qa3 Kc3
> 00:00:12  13.00  0.00  1.Qc3 Qxd5 2.Ra7 Bb7 3.Rxa6 Bxa6 4.Qc7 Qb3
>                        5.cxb3 Kxa3 6.Qc1 Kxb4 7.Ka2 Nd5 8.Qa3 Kc3
> 00:00:24  14.00  0.00  1.Qc3 Qxd5 2.Ra7 Bb7 3.Rxa6 Bxa6 4.Qc7 Qd1
>                        5.Ka2 Qd5 6.Kb1 Qd1 7.Ka2 Qd5
> 00:00:42  15.00  0.00  1.Qc3 Qxd5 2.Ra7 Bb7 3.Rxa6 Bxa6 4.Qc7 Qd1
>                        5.Ka2 Qd5 6.Kb1 Qd1 7.Ka2 Qd5
> 00:02:10  16.00  0.00  1.Qc3 Qxd5 2.Ra7 Bb7 3.Rxa6 Bxa6 4.Qc7 Qd1
>                        5.Ka2 Qd5 6.Kb1 Qd1 7.Ka2 Qd5
> 00:04:15  17.00  0.00  1.Qc3 Qxd5 2.Ra7 Bb7 3.Rxa6
> 00:10:12  18.00  0.00  1.Qc3 Qxd5 2.Ra7 Bb7 3.Rxa6 Bxa6
> 00:24:47  18.11  0.00  1.Ra7
> 00:39:37  18.11  0.77  1.Ra7 Bb7 2.Rxb7 Qxd5
>
>
>
>New game
>b2r3r/4Rp1p/p2q1np1/1p1P4/kP1Q4/P4PPB/2P4P/1K6 w - - 0 1
>
>Analysis by Hiarcs 9:
>
>1.Qe3 Bxd5
>  -+  (-7.45)   Depth: 1/3   00:00:00
>1.Ra7
>  -+  (-7.02)   Depth: 1/3   00:00:00
>1.Ra7 Nxd5
>  -+  (-7.02)   Depth: 1/3   00:00:00
>1.Rxf7
>  -+  (-6.15)   Depth: 1/3   00:00:00
>1.Rxf7 Nxd5
>  -+  (-6.15)   Depth: 1/3   00:00:00
>1.Qb2
>  -+  (-5.70)   Depth: 1/5   00:00:00
>1.Qb2 Bxd5
>  -+  (-5.70)   Depth: 1/5   00:00:00
>1.Qb2 Bxd5
>  -+  (-6.70)   Depth: 2/7   00:00:00
>1.Qb2 Bxd5 2.Re3
>  -+  (-6.70)   Depth: 2/8   00:00:00
>1.Rxf7 Nxd5
>  -+  (-5.86)   Depth: 2/8   00:00:00
>1.Rxf7 Nxd5 2.Qd3
>  -+  (-5.86)   Depth: 2/8   00:00:00
>1.Rxf7 Nxd5 2.Qd3
>  -+  (-5.57)   Depth: 3/11   00:00:00
>1.Rxf7 Rhf8 2.Rxf8 Rxf8
>  -+  (-5.57)   Depth: 3/11   00:00:00
>1.Rxf7 Rhf8 2.Rxf8 Rxf8
>  -+  (-5.82)   Depth: 4/11   00:00:00
>1.Rxf7 Nxd5 2.Kb2 Nxb4 3.Qxb4+
>  -+  (-6.40)   Depth: 4/16   00:00:00
>1.Qc3 Bxd5
>  -+  (-6.05)   Depth: 4/16   00:00:00
>1.Qc3 Bxd5 2.Re3 Rhe8
>  -+  (-6.05)   Depth: 4/16   00:00:00
>1.Qc3 Bxd5 2.Re3 Rhe8
>  -+  (-6.39)   Depth: 5/16   00:00:00  10kN
>1.Qc3 Bxd5 2.Re3 Rhe8 3.Rd3 Qe5
>  -+  (-6.39)   Depth: 5/16   00:00:00  12kN
>1.Rxf7 Nxd5 2.Kb2 Nxb4 3.Qxb4+
>  -+  (-6.38)   Depth: 5/18   00:00:00  15kN
>1.Rxf7 Nxd5 2.Kb2 Nxb4 3.Qxb4+ Qxb4+
>  -+  (-6.14)   Depth: 5/18   00:00:00  18kN
>1.Rxf7 Nxd5 2.Qb2 Nxb4 3.axb4 Qd1+ 4.Qc1 Qxc1+ 5.Kxc1
>  -+  (-6.37)   Depth: 6/20   00:00:00  65kN
>1.Rxf7 Nxd5 2.Qb2 Nxb4 3.axb4 Qd1+ 4.Qc1 Qxc1+ 5.Kxc1
>  -+  (-6.11)   Depth: 7/27   00:00:00  163kN
>1.Rxf7 Nxd5 2.Kb2 Rhf8 3.Rxf8 Qxf8
>  -+  (-6.09)   Depth: 7/29   00:00:02  493kN
>1.Qc3 Bxd5
>  -+  (-6.07)   Depth: 7/29   00:00:02  518kN
>1.Qc3 Qxd5 2.Qc7 Qd1+ 3.Kb2 Qd4+ 4.Kb1 Qd1+
>  =  (0.00)   Depth: 7/29   00:00:02  775kN
>1.Qc3 Qxd5 2.Qc7 Qd1+ 3.Kb2 Qd4+ 4.Kb1 Qd1+
>  =  (0.00)   Depth: 8/29   00:00:03  898kN
>1.Qc3 Qxd5 2.Qc7 Qd1+ 3.Kb2 Qd4+ 4.Kb1 Qd1+
>  =  (0.00)   Depth: 9/29   00:00:04  1417kN
>1.Qc3 Qxd5 2.Qc7 Qd1+ 3.Kb2 Qd4+ 4.Kb1 Qd1+
>  =  (0.00)   Depth: 10/33   00:00:10  3472kN
>1.Qc3 Qxd5 2.Qc7 Qd1+ 3.Kb2 Qd4+ 4.Kb1 Qd1+
>  =  (0.00)   Depth: 11/36   00:00:18  6901kN
>1.Qc3 Qxd5 2.Qc7 Qd1+ 3.Kb2 Qd4+ 4.Kb1 Qd1+
>  =  (0.00)   Depth: 12/37   00:01:07  23802kN
>1.Qc3 Qxd5 2.Ra7 Bb7 3.Rxb7 Rhe8 4.Rb6 Ra8 5.Rxf6 Qc4 6.Qxc4 bxc4 7.Ka2 Re7
>8.Rc6
>  =  (0.22)   Depth: 13/41   00:03:38  76691kN
>1.Qc3 Qxd5 2.Ra7 Bb7 3.Rxb7 Qc4 4.Qxf6 Rd1+ 5.Kb2 Qd4+ 6.Qxd4 Rxd4 7.Bf1 Ra8
>8.Rxf7 h5 9.Bd3 Rd6 10.Rg7 Rf8 11.Bxg6 Rxf3
>  ²  (0.34)   Depth: 14/41   00:08:50  189024kN
>1.Ra7 Bb7
>  ²  (0.35)   Depth: 14/47   00:38:45  766734kN
>1.Ra7 Bb7
>  ²  (0.47)   Depth: 14/47   00:39:27  777544kN
>1.Ra7 Bb7 2.Rxb7 Qxd5 3.Rb6 a5 4.Qe3 Rc8 5.Bxc8 Rxc8 6.Rxf6 Rxc2 7.Kxc2 Qa2+
>8.Kd3 Qc4+ 9.Kd2 Qa2+ 10.Kd3
>  ²  (0.66)   Depth: 14/47   00:41:37  817813kN
>
>(Athlon XP @ 2200 MHz, 1GB hash, 3-5 man EGTB's 22.09.2003)
>
>
>New game
>b2r3r/4Rp1p/p2q1np1/1p1P4/kP1Q4/P4PPB/2P4P/1K6 w - - 0 1
>
>Analysis by Shredder 7.04:
>
>1.Rxf7 Nxd5
>  -+  (-6.37)   Depth: 1/6   00:00:00
>1.Rxf7 Qxd5
>  -+  (-6.30)   Depth: 1/6   00:00:00
>1.Rxf7 Nxd5
>  -+  (-6.22)   Depth: 2/3   00:00:00
>1.Rxf7 Qb6 2.Qxb6
>  -+  (-5.97)   Depth: 3/6   00:00:00
>1.Rxf7 Nxd5 2.Qb2
>  -+  (-5.36)   Depth: 3/6   00:00:00
>1.Rxf7 Nxd5 2.Qb2
>  -+  (-5.36)   Depth: 3/6   00:00:00
>1.Rxf7 Qxd5 2.Qxf6 Qa2+ 3.Kxa2
>  -+  (-5.11)   Depth: 4/10   00:00:00
>1.Rxf7 Nh5 2.c4 bxc4
>  -+  (-4.98)   Depth: 4/15   00:00:00
>1.Rxf7 Rhf8 2.Qb2 Bxd5 3.Qb3+ Bxb3
>  -+  (-5.23)   Depth: 5/16   00:00:00
>1.Rxf7 Rhf8 2.Rxf6 Qxf6 3.d6
>  -+  (-5.73)   Depth: 5/16   00:00:00
>1.Rxf7 Rhf8 2.Qc3 Bxd5 3.Rxf8 Qxf8 4.Kb2
>  -+  (-5.89)   Depth: 5/16   00:00:00
>1.Rxf7 Rhf8 2.Rxf8 Rxf8 3.Qc3 Qxd5 4.f4
>  -+  (-5.78)   Depth: 6/14   00:00:00
>1.Rxf7 Rhf8 2.Qc3 Bxd5 3.Rxf8 Rxf8 4.Kb2 h5 5.f4
>  -+  (-5.54)   Depth: 7/18   00:00:00  65kN
>1.Qe3 Qxd5 2.Ra7 Rd6 3.Kb2 Qxf3 4.Qb3+ Qxb3+ 5.cxb3#
>  -+  (-5.53)   Depth: 7/21   00:00:00  208kN
>1.Qe3 Qxd5 2.Ra7 Rd6 3.Kb2 Qd1 4.Qb3#
>  -+  (-5.18)   Depth: 7/21   00:00:00  234kN
>1.Qe3 Qxd5 2.Ra7 Bb7 3.Rxb7 Rhe8 4.Rb6 a5 5.Qc3 Nd7 6.Bxd7 Rxd7 7.bxa5
>  -+  (-3.19)   Depth: 7/25   00:00:01  547kN
>1.Qc3 Qxd5 2.Qc7 Qd1+ 3.Kb2 Qd4+ 4.Kb1 Rc8 5.Bxc8 Rxc8 6.Qxc8 Qxb4+ 7.axb4
>  -+  (-3.18)   Depth: 7/25   00:00:01  591kN
>1.Qc3 Qxd5 2.Qc7 Qd1+ 3.Kb2 Qd4+ 4.Kb1 Rc8 5.Bxc8 Rxc8 6.Qxc8 Qxb4+ 7.axb4
>  -+  (-2.83)   Depth: 7/25   00:00:01  605kN
>1.Qc3 Qxd5 2.Qc7 Qd1+ 3.Kb2 Qd4+ 4.Kb1 Qg1+ 5.Kb2 Qd4+ 6.Kb1 Qg1+ 7.Kb2 Qd4+
>8.Kb1
>  =  (-0.05)   Depth: 7/27   00:00:02  754kN
>1.Qc3 Qxd5 2.Qc7 Qd1+ 3.Kb2 Qd4+ 4.Kb1 Qg1+ 5.Kb2 Qd4+ 6.Kb1 Qg1+ 7.Kb2 Qd4+
>8.Kb1
>  =  (-0.05)   Depth: 8/25   00:00:02  923kN
>1.Qc3 Qxd5 2.Qc7 Qd1+ 3.Kb2 Qd4+ 4.Kb1 Qg1+ 5.Kb2 Qd4+ 6.Kb1 Qg1+ 7.Kb2 Qd4+
>8.Kb1
>  =  (-0.05)   Depth: 9/30   00:00:04  1524kN
>1.Qc3 Qxd5 2.Qc7 Qd1+ 3.Kb2 Qd4+ 4.Kb1 Qg1+ 5.Kb2 Qd4+ 6.Kb1 Qg1+ 7.Kb2 Qd4+
>8.Kb1
>  =  (-0.05)   Depth: 10/31   00:00:06  2710kN
>1.Qc3 Qxd5 2.Qc7 Qd1+ 3.Kb2 Qd4+ 4.Kb1 Qg1+ 5.Kb2 Qd4+ 6.Kb1 Qg1+ 7.Kb2 Qd4+
>8.Kb1
>  =  (-0.05)   Depth: 11/34   00:00:13  5796kN
>1.Qc3 Qxd5 2.Qc7 Qd1+ 3.Kb2 Qd4+ 4.Kb1 Qg1+ 5.Kb2 Qd4+ 6.Kb1 Qg1+ 7.Kb2 Qd4+
>8.Kb1
>  =  (-0.05)   Depth: 12/40   00:00:31  13327kN
>1.Qc3 Qxd5 2.Qc7 Qd1+ 3.Kb2 Qd4+ 4.Kb1 Qg1+ 5.Kb2 Qd4+ 6.Kb1 Qg1+ 7.Kb2 Qd4+
>8.Kb1
>  =  (-0.05)   Depth: 13/41   00:01:04  27213kN
>1.Qc3 Qxd5 2.Qc7 Qd1+ 3.Kb2 Qd4+ 4.Kb1 Qg1+ 5.Kb2 Qd4+ 6.Kb1 Qg1+ 7.Kb2 Qd4+
>8.Kb1
>  =  (-0.05)   Depth: 14/43   00:02:34  65057kN
>1.Re6 Bxd5 2.Rxd6 Rxd6 3.Kb2 Re8 4.Qc3 Rd7
>  =  (-0.04)   Depth: 14/43   00:04:13  107901kN
>1.Re6 fxe6 2.Qe3 Qxb4+ 3.axb4 Kxb4 4.Qd4+ Ka5 5.d6 Nd5 6.Bxe6 Rhe8 7.Bxd5 Rxd6
>8.Qa1+ Kb6 9.Qd4+ Ka5 10.Qa1+ Kb6 11.Qd4+ Ka5 12.Qa1+
>  =  (0.09)   Depth: 14/43   00:06:35  176268kN
>1.Re6 fxe6 2.Qe3 Qxb4+ 3.axb4 Kxb4 4.Qd4+ Ka5 5.d6 Nd5 6.Bxe6 Rhe8 7.Bxd5 Rxd6
>8.Qa1+ Kb6 9.Qd4+ Ka5 10.Qa1+ Kb6 11.Qd4+ Ka5 12.Qa1+
>  =  (0.09)   Depth: 15/46   00:12:15  327384kN
>1.Ra7 Bb7 2.Rxb7 Qxd5 3.Rb6 a5 4.Qe3 Ra8 5.Kb2 axb4 6.axb4 Rhb8
>  =  (0.10)   Depth: 15/47   00:16:41  439203kN
>1.Ra7 Bb7 2.Rxb7 Qxd5 3.Rb6 a5 4.Qe3 Ra8 5.Kb2 axb4 6.axb4 Rhb8 7.Rxf6 Qxf3
>8.Rxf3 Kxb4 9.Rxf7
>  ²  (0.45)   Depth: 15/47   00:17:18  455807kN
>1.Ra7 Bb7 2.Rxb7 Qxd5 3.Rb6 a5 4.Ra6 Ra8 5.Qe3 Rxa6 6.Kb2 axb4 7.axb4 Qa2+
>8.Kxa2 Kxb4+ 9.Kb2 Rc6 10.Qa7 Kc4
>  +-  (3.63)   Depth: 15/47   00:21:49  565334kN
>1.Ra7 Bb7 2.Rxb7 Qxd5 3.Rb6 a5 4.Ra6 Ra8 5.Qe3 Rxa6 6.Kb2 axb4 7.axb4 Qa2+
>8.Kxa2 Kxb4+ 9.Kb2 Rc6 10.Qa7 Kc4 11.c3 Rc7 12.Qd4#
>  +-  (3.88)   Depth: 16/45   00:24:46  636158kN
>1.Ra7 Bb7 2.Rxb7 Qxd5 3.Rb6 a5 4.Ra6 Ra8 5.Qe3 Rxa6 6.Kb2 axb4 7.axb4 Qa2+
>8.Kxa2 Kxb4+ 9.Kb2 Rc6 10.Qa3+ Kc4 11.f4 Nd5 12.Bg2 Nxf4 13.Bxc6
>  +-  (4.38)   Depth: 16/45   00:26:26  678492kN
>
>(Athlon XP @ 2200 MHz, 1GB hash, 3-5 man EGTB's 22.09.2003)



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