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Subject: Re: Can any program find this thematic move?

Author: Dan Ellwein

Date: 15:56:57 05/08/04

Go up one level in this thread


On May 08, 2004 at 17:41:59, Dana Turnmire wrote:

>On May 08, 2004 at 17:32:00, Anthony Cozzie wrote:
>
>>On May 08, 2004 at 16:30:36, Dana Turnmire wrote:
>>
>>>[Event "?"]
>>>[Site "Saint Vincent "]
>>>[Date "2000.??.??"]
>>>[Round "?"]
>>>[White "Franco"]
>>>[Black "Colovic"]
>>>[Result "*"]
>>>[d]4rrk1/1bqn1pbn/p5pp/2pPp3/NpP2P2/1P2B1NP/P2Q1RB1/5RK1 w - -
>>>
>>>The thematic move is 1.f5!
>>>
>>>Or has this thematic move been discredited with computer analysis also?
>>>
>>>All programs I have tested (CM9000, CM9 SKR, Genius 7, Ruffian, and Arasan 6.1
>>>all give 1.Ne4.
>>
>>Zappa waffles.  Ne4 seems like a very reasonable move though.
>>
>>1. f4-f5 Nh7-f6 2. Ng3-e4 Nf6xe4 3. Bg2xe4 Qc7-d6 4. Qd2-c2 h6-h5 5. f5-f6
>>Nd7xf6 6. Be3xc5 Qd6-d8 7. Bc5xb4 Nf6xe4 8. Qc2xe4
>> = (1.55)       Depth: 12/32    00:00:37.87     23623kN
>>1. Ng3-e4 Nh7-f6 2. Ne4xc5 e5-e4 3. Nc5xb7 Qc7xb7 4. f4-f5 g6-g5 5. Na4-c5
>>Nd7xc5 6. Be3xc5 a6-a5 7. Bc5xf8 Kg8xf8
>> = (1.69)       Depth: 13/32    00:02:12.50     86093kN
>>1. Ng3-e4 Nh7-f6 2. Ne4xc5 e5-e4 3. Nc5xb7 Qc7xb7 4. f4-f5 g6-g5 5. Na4-c5
>>Nd7xc5 6. Be3xc5 Nf6-d7 7. Bc5xf8 Kg8xf8
>> = (1.55)       Depth: 14/32    00:03:03.68     120319kN
>>1. f4-f5 Nh7-f6 2. Be3xh6 e5-e4 3. Bh6-f4 Qc7-c8 4. Qd2-c2 Nf6-h5 5. Ng3xh5
>>g6xh5 6. Bf4-e3 Bg7-d4 7. Be3xd4 c5xd4 8. Bg2xe4
>> = (1.65)       Depth: 14/34    00:04:33.21     181309kN
>>
>>anthony
>
>This is what IM Buckley says about the matter in his book "Multiple Choice
>Chess."
>
>"Five points for the thematic 23.f5! with a bonus of one if you planned to meet
>23...g5 with 24.Ne4.

Hi Dana

CM9_OffSet gets 5 points for f5 and a bonus point for ...g5 with Ne4

P3/850

Time	Depth	Score	Positions	Moves
0:00	1/3	1.80	546		1.d6 Qb8 2.Bxb7 Qxb7 3.Nxc5
0:00	1/3	1.80	546		1.d6 Qb8 2.Bxb7 Qxb7 3.Nxc5
0:00	1/4	1.80	3622		1.d6 Qc8 2.Bxb7 Qxb7 3.Nxc5
0:00	1/5	1.96	12509		1.d6 Qc8 2.Bxb7 Qxb7 3.Nxc5 Nxc5
					4.Bxc5 exf4 5.Rxf4
0:00	1/6	2.25	26475		1.d6 Qc8 2.Bxb7 Qxb7 3.Nxc5 Nxc5
					4.Bxc5 Qd7 5.fxe5 Bxe5
0:01	1/6	2.30	82108		1.Ne4 exf4 2.Bxf4 Be5 3.Bxe5 Rxe5
					4.Qxh6
0:01	1/7	1.99	129641		1.Ne4 exf4 2.Bxf4 Be5 3.Bxe5 Rxe5
					4.Qxh6 Ree8
0:03	1/8	2.37	250544		1.Ne4 exf4 2.Bxf4 Qa5 3.Nd6 Rb8
					4.Nxf7 Rbe8 5.Bxh6
0:11	1/9	2.52	836444		1.Ne4 f5 2.Nexc5 Nxc5 3.Bxc5 Rf7
					4.d6 Qc8 5.Bxb7 Qxb7 6.Qxb4
0:14	1/9	2.55	994953		1.d6 Qc8 2.Bxb7 Qxb7 3.Nxc5 Nxc5
					4.Bxc5 Qd7 5.Bxb4 exf4 6.Qxf4 Qxh3
					7.d7
0:21	1/10	2.08	1506567		1.d6 Qc8 2.Bxb7 Qxb7 3.Nxc5 Nxc5
					4.Bxc5 Qd7 5.h4 exf4 6.Rxf4 Qh3
					7.Qf2
0:33	1/10	2.64	2432519		1.Ne4 f5 2.Nexc5 Nxc5 3.Bxc5 e4
					4.Bxf8 e3 5.d6 exf2+ 6.Qxf2
0:52	1/10	2.71	3883308		1.f5 Nhf6 2.d6 Qc8 3.Bxb7 Qxb7
					4.Nxc5 Qc6 5.Nxd7 Qxd7 6.Qxb4
2:02	1/11	2.76	9239644		1.f5 g5 2.d6 Qc8 3.Bxb7 Qxb7 4.Nxc5
					Nxc5 5.Bxc5 Rb8 6.f6 Bxf6 7.Rxf6
					Nxf6 8.Rxf6 Qc8 9.Ba7
4:06	1/12	3.00	18787586	1.f5 g5 2.Ne4 Nhf6 3.Nexc5 Bc8
					4.Nxd7 Bxd7 5.Bb6 Qc8 6.Nc5 e4
					7.Nxd7 Nxd7 8.Qxb4 Nxb6 9.Qxb6

Dan

> The threats of f5-f6, Nxc5 and d5-d6 ensure that White
>will have an advantage after getting the pawn back."
>
>I may replace test 19 in the Brialliancy Test Suite with this one.



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