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Subject: Re: Can programs find the Lasker move? (Bxa6!!)

Author: Ulrich Tuerke

Date: 13:06:46 08/29/02

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On August 29, 2002 at 04:17:00, Vincent Lejeune wrote:

>Wierd, weird, weird !!!!
>
>Chessmaster 9000 is too good tactically !
>
>I hope the SSDF will test it seriously !
>Is there some autoplayer facilities in CM9k ?

I'd bet that this can be easily done using Ebbi Börger's auto232 winboard
engine.
You start a game under CM8K/CM9K of TheKing against the auto232.

The real opponent may then run on another computer, and the auto232 wb-Engine
will care for the communication.

IIRC, it can be downloaded from Frank Quisinsky's site.

Uli

>
>
>On August 29, 2002 at 01:58:45, John Merlino wrote:
>
>>On August 28, 2002 at 23:03:19, Tanya Deborah wrote:
>>
>>>
>>>Hi CCC!
>>>
>>>Look the 17. Lasker move (Bxa6!!)
>>>
>>>Great game!  Any program  can find this move?
>>>
>>>
>>>
>>>
>>>Lasker - Marshall  (1914 St Petesburgo)
>>>
>>>1. e4   e5
>>>2. Nf3  Nf6
>>>3. Nxe5 d6
>>>4. Nf3  Nxe4
>>>5. Qe2  Qe7
>>>6. d3   Nf6
>>>7. Bg5  Be6
>>>8. Nc3  Nbd7
>>>9. O-O-O h6
>>>10. Bh4 g5
>>>11. Bg3 Nh5
>>>12. d4  Nxg3
>>>13. hxg3 g4
>>>14. Nh4 d5
>>>15. Qb5 O-O-O
>>>16. Qa5 a6
>>>17. Bxa6 bxa6
>>>18. Qxa6+ Kb8
>>>19. Nb5 Nb6
>>>20. Rd3 Qg5+
>>>21. Kb1 Bd6
>>>22. Rb3 Rhe8
>>>23. a4  Bf5
>>>24. Na7 Bd7
>>>25. a5  Qd2
>>>26. axb6 Re1+
>>>27. Ka2 c6
>>>28. Nb5 cxb5
>>>29. Qa7+
>>>
>>>There are a good defence for Black after 17.Bxa6! ? Some programs seems really
>>>advantage for White after this move.
>>
>>Chessmaster 9000, on a PIII-733, finds the move in less than one second.
>>However, it takes 2:54 before it thinks that White has an slight advantage:
>>
>>Time	Depth	Score	Positions	Moves
>>0:00	1/3	-0.95	2267		1.Kb1 Qb4 2.Qxb4 Bxb4
>>0:00	1/3	-0.71	3663		1.Bxa6 bxa6 2.Qxa6+ Kb8 3.Kb1 Nb6
>>					4.Rhe1
>>0:00	1/3	-0.69	6770		1.Bd3 Qb4 2.Qxb4 Bxb4
>>0:00	1/4	-0.79	10723		1.Bd3 Qf6 2.f4 Nb6 3.Ne2
>>0:00	1/4	-0.57	14727		1.Bxa6 bxa6 2.Qxa6+ Kb8 3.Nb5 Nb6
>>					4.Qa7+ Kc8 5.Rhe1 Qg5+ 6.Kb1 Bd6
>>					7.Nxd6+ Rxd6
>>0:00	1/5	-0.38	38374		1.Bxa6 bxa6 2.Qxa6+ Kb8 3.Nb5 Nb6
>>					4.Qa7+ Kc8 5.Rhe1 Qg5+ 6.Kb1 Bd6
>>					7.Qa6+ Kd7 8.Nxd6 Kxd6
>>0:01	1/6	-0.38	113368		1.Bxa6 bxa6 2.Qxa6+ Kb8 3.Nb5 Nb6
>>					4.Qa7+ Kc8 5.Rhe1 Qg5+ 6.Kb1 Bd6
>>					7.Qa6+ Kd7 8.Nxd6 Kxd6
>>0:04	1/7	-0.44	342200		1.Bxa6 bxa6 2.Qxa6+ Kb8 3.Nb5 Nb6
>>					4.Rhe1 Qg5+ 5.Kb1 Nc8 6.f4 Qf6
>>					7.Qa5 Rd7
>>0:10	1/8	-0.38	807098		1.Bxa6 bxa6 2.Qxa6+ Kb8 3.Nb5 Nb6
>>					4.Rhe1 Nc8 5.f4 Qf6 6.Qa5 Bd6 7.Nxd6
>>					Nxd6
>>0:33	1/9	-0.09	2790187		1.Bxa6 bxa6 2.Qxa6+ Kb8 3.Nb5 Nb6
>>					4.Rhe1 Qg5+ 5.Kb1 Nc8 6.f4 Qg7
>>					7.Qa5 Rd7 8.f5
>>2:54	1/10	0.21	14196874	1.Bxa6 Qf6 2.f4 Nb6 3.f5 Bxf5 4.Nxf5
>>					Qxf5 5.Bd3 Qg5+ 6.Kb1 Bg7 7.Nb5
>>					Rhe8
>>4:55	2/11	0.12	24516554	1.Bxa6 Nb6 2.Bb5 Kb8 3.Ne2 Qf6
>>					4.Nf4 Bd6 5.Nxe6 fxe6 6.Qd2 Rhf8
>>
>>jm



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