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Subject: Re: Test your program

Author: Eduard Nemeth

Date: 07:51:47 05/04/01

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On May 04, 2001 at 01:13:12, Harald Faber wrote:

>On May 03, 2001 at 20:12:14, John Merlino wrote:
>
>>On May 03, 2001 at 18:51:08, Eduard Nemeth wrote:
>>
>>>In year 1998 i played a wonderful game vs. Fritz 5 (on a P100) with a nice mate!
>>>Here:
>>>
>>>[D]r4rk1/pb3pp1/2p1p2p/1pq1P3/5Q1B/P1PB4/2P3PP/1K5R b - - 0 0
>>>
>>>wKb1,Qf4,Bd3,h4,Rh1,Pa3,c2,c3,e5,g2,h2/bKg8,Qc5,Bb7,Ra8,f8,Pa7,b5,c6,e6,f7,g7,h6
>>>
>>>[Event "?"]
>>>[Site "?"]
>>>[Date "1998.??.??"]
>>>[Round "?"]
>>>[White "Nemeth,E"]
>>>[Black "Fritz5"]
>>>[Result "1-0"]
>>>[FEN "r4rk1/pb3pp1/2p1p2p/1pq1P3/5Q1B/P1PB4/2P3PP/1K5R b - -"]
>>>
>>>1... Qxa3 2. Bf6 Rfc8 3. Bxg7 Kxg7 4. Qf6+ Kf8 5. Rf1 Rc7
>>>6. Bg6 Kg8 7. Bxf7+ Rxf7 8. Qxf7+ Kh8 9. Qf6+ Kh7 10. Rd1
>>>Re8 11. Qf7+ Kh8 12. Qxe8+ Qf8 13. Qxf8+ Kh7 14. Qf7+ Kh8
>>>15. Rd8# 1-0
>>>
>>>1. what progam today play here never 19...Qxa3?
>>>2. have black after 20.Bf6 a chance for a draw, and when, how?
>>>
>>>You can your program now test.
>>>
>>>Eduard
>>
>>Chessmaster 8000 needs 48 seconds (on a PIII-600) to avoid 19...Qxa3:
>>
>>Time	Depth	Score	Positions	Moves
>>0:00	2/5	-3.47	11220		1...Qxa3 2. Rf1 c5 3. Bxb5 Bxg2
>>0:00	2/6	-3.15	33234		1...Qxa3 2. Qe4 g6 3. Qe3 Qxc3
>>					4. Be1 Qa3 5. Qxh6
>>0:03	3/7	-2.92	221640		1...Qxa3 2. Bf6 Rfb8 3. Qg4 Qf8
>>					4. Qe4 g6 5. Qg4 Qc5 6. Rd1
>>0:07	3/8	-3.05	494858		1...Qxa3 2. Qe4 g6 3. Qf4 Qxc3
>>					4. Be7 c5 5. Bxf8 Rxf8 6. Rd1
>>0:23	4/9	-2.00	1734811		1...Qxa3 2. Bf6 Rfc8 3. Bxg7 Kxg7
>>					4. Qf6+ Kg8 5. Qxh6 f5 6. Qxe6+
>>					Kf8 7. Qxf5+ Ke8 8. Rf1
>>0:48	4/9	-2.30	3453263		1...Rfc8 2. Qe4 g6 3. Rf1 Rc7 4.
>>					Kb2 Rd7 5. Qe1 a5 6. Rf3 Qd5
>>1:29	4/10	-1.97	6653773		1...Rfc8 2. Qe4 g6 3. Qf4 Qf8 4.
>>					Rd1 Rc7 5. Bf6 Rd7 6. Re1 a5 7.
>>					Qe3
>>5:54	5/11	-1.44	26587667	1...Rfc8 2. Qe4 g6 3. Rf1 Qf8 4.
>>					Qe3 g5 5. Qe4 Qg7 6. Bf2 Rc7 7.
>>					Bc5 Rd7 8. Rd1
>>
>>and it takes 42 seconds to see the draw after 20.Bf6:
>>
>>Time	Depth	Score	Positions	Moves
>>0:42	4/9	0.00	3595579		2...Rfc8 3. Bxg7 Kxg7 4. Qf6+ Kg8
>>					5. Bh7+ Kxh7 6. Qxf7+ Kh8 7. Qf6+
>>					Kg8 8. Qg6+ Kh8 9. Qxh6+ Kg8 10.
>>					Qg6+ Kh8 11. Qh6+
>>1:38	4/10	0.00	9094782		2...Rfc8 3. Bxg7 Kxg7 4. Qf6+ Kg8
>>					5. Bh7+ Kxh7 6. Qxf7+ Kh8 7. Qf6+
>>					Kg8 8. Qg6+ Kh8 9. Qxh6+ Kg8 10.
>>					Qg6+ Kh8 11. Qh6+
>>
>>jm
>
>
>I doubt that this is draw. The pv does not consider Eduards strong move Rf1,
>what does CM say in this case? I have seen CM drop the eval from 0.00 (for some
>moves) suddenly down to -2 or so several times.

Thanks for all analysis!

In my opinion is after 1..Qxa3 and 2.Bf6!, now only draw-move 2..Rfd8! After
Rfc8? wins white the game (Bxg7!).

Regards,
Eduard



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