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Subject: Re: Nolot #4

Author: Vincent Diepeveen

Date: 07:25:59 11/10/01

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On November 10, 2001 at 09:49:09, Andrew Smith wrote:

diep solves it pretty fast nowadays. Depends basically upon extensions
and hardware used what time it takes. But nearly always more than 10 minutes,
but usual also between the hour.

I see you get half a million nodes or so with tiger in this pos.
what's your hardware?



>[D]r1b1kb1r/1p1n1ppp/p2ppn2/6BB/2qNP3/2N5/PPP2PPP/R2Q1RK1 w KQkq - 0 1
>
>This looks to be one of the harder Nolot tests IMO (but far from the hardest I
>think). I'm interested what chess programs can solve it, and how fast they have
>done it. If you have a chess engine that can solve this one, please post the
>analysis. Here is what I got when I let gambit 2.0 run over night
>
>only,T - Gambit Tiger 2.0
>r1b1kb1r/1p1n1ppp/p2ppn2/6BB/2qNP3/2N5/PPP2PPP/R2Q1RK1 w - - 0 1
>
>Analysis by Gambit Tiger 2.0:
>
>1.Be3 e5 2.Nb3 Nxe4 3.Nd2 Nxd2 4.Qxd2
>  ²  (0.52)   Depth: 5   00:00:00  21kN
>1.Bf3 h6 2.Bc1 Qc7 3.Be3
>  ±  (0.72)   Depth: 5   00:00:00  22kN
>1.Be2 Qc7 2.Qd3 Nc5 3.Qf3
>  ±  (1.00)   Depth: 5   00:00:00  29kN
>1.Be2 Qc7 2.Qd2 b5 3.Bf3 Bb7
>  ±  (1.02)   Depth: 6   00:00:01  39kN
>1.Be2 Qc7 2.Qd2 b5 3.a3 Bb7 4.f3
>  ²  (0.64)   Depth: 7   00:00:02  93kN
>1.Bf3 h6 2.Bh4 Ne5 3.Bxf6 gxf6 4.Be2 Qc7
>  ±  (0.72)   Depth: 7   00:00:03  139kN
>1.Bf3 h6 2.Bh4 g5 3.Bg3 Ne5 4.Re1 Nxf3+ 5.Nxf3 Qc6
>  ²  (0.64)   Depth: 8   00:00:04  211kN
>1.Be2 Qc7 2.a4 h6 3.Be3 Ne5 4.Qd2 Nc4 5.Bxc4 Qxc4
>  ²  (0.68)   Depth: 8   00:00:06  292kN
>1.Be2 Qc7 2.a4 h6 3.Be3 Nc5 4.f3 Qb6 5.Ra2
>  ²  (0.62)   Depth: 9   00:00:13  620kN
>1.Bf3 h6 2.Bh4 g5 3.Bg3 Ne5 4.Re1 Nxf3+ 5.Nxf3 Qc6 6.Nd4
>  ²  (0.64)   Depth: 9   00:00:15  717kN
>1.Bf3 h6 2.Bh4 g5 3.Bg3 Ne5 4.Be2 Qb4 5.f4 gxf4 6.Rxf4 Qxb2 7.Rxf6 Qxc3
>  ²  (0.54)   Depth: 10   00:00:23  1133kN
>1.Be2 Qc7 2.a4 h6 3.Bh4 b6 4.Bh5 g6 5.Bf3 Bg7
>  ²  (0.60)   Depth: 10   00:00:32  1582kN
>1.Be2 Qc7 2.Bf3 h6 3.Bh4 Ne5 4.Bxf6 gxf6 5.a3 Bd7 6.Qd2 Nxf3+ 7.Nxf3
>  ²  (0.52)   Depth: 11   00:01:14  3691kN
>1.Bf3 h6 2.Bh4 g5 3.Bg3 Ne5 4.Be2 Qb4 5.a3 Qb6 6.Na4
>  ±  (0.72)   Depth: 11   00:01:42  5138kN
>1.Bf3 Ne5 2.Be2 Qc7 3.Qd2 b5 4.Bxf6 gxf6 5.Bh5 Bg7 6.Nce2 Kf8 7.a4
>  ²  (0.70)   Depth: 12   00:03:34  10941kN
>1.Bf3 Qc7 2.Qd2 Ne5 3.Be2 b5
>  ²  (0.64)   Depth: 13   00:08:35  27318kN
>1.Bf3 Qc7 2.Qd2 Ne5 3.Be2 b5 4.Bxf6 gxf6 5.Bh5 Qc5 6.Nb3 Nc4 7.Nxc5 Nxd2 8.Rfd1
>dxc5 9.Rxd2
>  ²  (0.64)   Depth: 14   00:21:54  72996kN
>1.Bf3 Qc7 2.Qd2 Ne5 3.Be2 b5 4.Bxf6 gxf6 5.Bh5 Bg7 6.a4 b4 7.Nce2 Rb8 8.Qf4 Qe7
>  ²  (0.56)   Depth: 15   00:48:38  161410kN
>1.Bf3 Qc7 2.a4 Be7 3.Be3 Kf8 4.Nb3 Ne5 5.Be2 b6 6.a5 b5 7.Bb6 Qd7 8.Qd4 Bb7
>  ²  (0.52)   Depth: 16   01:46:44  405761kN
>1.Bf3 Qc7 2.a4 Be7 3.a5 Ne5 4.Be2 Bd7 5.Bf4 Nc4 6.Bxc4 Qxc4 7.Bg3 Kf8 8.Re1 d5
>9.exd5 Nxd5 10.Ne4
>  ²  (0.50)   Depth: 17   03:59:02  967664kN
>1.Nxe6 Qxe6 2.Nd5 Kd8 3.Bg4 Qe5 4.f4 Qxb2 5.Bxd7 Bxd7 6.Rb1 Qa3 7.Nxf6 Qc5+
>8.Rf2 Bb5 9.Nxh7+ Be7
>  ±  (0.85)   Depth: 17   06:19:46  1711999kN
>1.Nxe6 Qxe6 2.Nd5 Kd8 3.Bg4 Qe5 4.f4 Qxb2 5.Bxd7 Bxd7 6.Rb1 Qa3 7.Nxf6 Qc5+
>8.Rf2 Bb5 9.Nxh7+ Be7
>  ±  (0.88)   Depth: 18   08:13:15  2317671kN



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