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Subject: Re: Gambit 2.0 plays like Botvinnik!

Author: Bruce Moreland

Date: 13:29:39 04/01/01

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On April 01, 2001 at 16:14:31, Djordje Vidanovic wrote:

>On April 01, 2001 at 16:04:52, Christian Koch wrote:
>
>>Gambit Tiger 1.0 needs 1:45 on Pentium III 500Mhz!!!!!
>>
>>
>>
>>On April 01, 2001 at 14:50:06, jw wrote:
>>
>>>The following position is from the famous game Botvinnik - Capablanca, Avro
>>>Holland 1938
>>>
>>>8/p3q1kp/1p2Pnp1/3pQ3/2pP4/1nP3N1/1B4PP/6K1 w - -
>>>
>>>Amazing! Gambit Tiger 2.0 finds the move 30.Ba3 after 1:34!!!
>>>As far as I know it's the only program who finds this move (within reasonable
>>>time).
>>>The score after 1:34 is 1.28 and after 3:46 it's 4.42 (both at ply 14).
>>>Used hardware is a Pentium III 1 Ghz.
>
>
>[...] 1.Ne2 Na5 2.Nf4 Nc6 3.Nxd5 Nxe5 4.Nxe7 Nd3 (0:00.00)
>[...] 1.h3 Kg8 2.Ne2 Nd2 3.Nf4 a5 4.Nxd5 Nxd5 5.Qxd5 a4 6.Qd7 (0:00.02)
>[...] 1.h3 h6 2.Ne2 Na5 3.Nf4 Nc6 4.Nxd5 Nxe5 5.Nxe7 Nd3 (0:00.05)
>[...] 1.h3 h5 2.Ne2 Na5 3.Nf4 Nc6 4.Qg5 Qe8 5.Ba3 b5 6.Nxd5 Qxe6 7.Nxf6 Qxf6
>8.Qxb5 (0:00.11)
>[...] 1.h3 h5 2.Ne2 Na5 3.Nf4 Nc6 4.Qg5 Qe8 5.Ba3 Nd8 6.e7 Nc6 7.Ne6 Kf7
>(0:00.18)
>[...] 1.h3 h5 2.Ne2 Na5 3.Nf4 Nc6 4.Qg5 Qe8 5.Ba3 a6 6.Kf1 b5 7.Kg1 (0:00.34)
>[+ 1.44] 1.Ba3 (0:01.13)
>
>Gambit Tiger 1.0 finds the move, evaluating it as + 1.44 in 1:13...  (Duron 800,
>48 meg hash).
>
>***  Djordje

My program takes 3:30 to find this on a quad 450 Xeon, but when it resolves the
fail-high the score is +3.72.

I am disappointed in how long it took, but I believe I've had other versions in
the past that found it faster.

bruce




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