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Subject: Re: My thought on Hydra vs Adams Game 1. Yes c4! was a killer shot.

Author: John Merlino

Date: 18:28:11 06/21/05

Go up one level in this thread


On June 21, 2005 at 16:44:21, Torstein Hall wrote:

>On June 21, 2005 at 15:30:03, Robert Hyatt wrote:
>
>>On June 21, 2005 at 14:19:44, Robin Smith wrote:
>>
>>>On June 21, 2005 at 14:11:23, Mark Young wrote:
>>>
>>>>On June 21, 2005 at 14:04:37, Ted Summers wrote:
>>>>
>>>>>To sum it up " He played a drawish opening in a tactic way. " Not a good idea
>>>>>when computers are able to hang with the best and proving themself as better
>>>>>than humans in open tactical positions. However I still think GM Adams can pull
>>>>>it together and Win or Draw this match.
>>>>>
>>>>>[D] r2q1rk1/1pp3pp/p2b4/nP1p1p1b/2PPn3/3B1N1P/P1QN1PP1/1RB1R1K1 b - - 0 17
>>>>>
>>>>>Having reached this position, we seemed to be watching the beginning of the end
>>>>>for Adams in the first game but hopefully not the match.
>>>>
>>>>C4! was a killer positional shot.
>>>
>>>c4 was a good move, but hardly a "killer".
>>>
>>>>It seems clear GM Adams missed this move when he played Na5.
>>>
>>>Perhaps Adams miissed it, but it hardly seems "clear", since Black is still OK
>>>afterwards. His loss happened later.
>>>
>>>-Robin
>>The problem here is that the kingside is already a bit open.  One does _not_, as
>>a human, allow the computer to open _both_ sides of the board in the same game.
>>It invites a debacle such as this.  Of course, he made a couple of tactical
>>errors around the point where the rook on C8 was hanging, but he was already in
>>the wrong kind of position...
>>
>>All the comps were suggesting the same moves as played by Hydra, so there was no
>>real surprises from the white side, just black making an error here, an error
>>there, before long he fell off the rim of the canyon.
>
>This is in my view far to general. Black was at least = uptil move 23.Be6
>[D]2rq1r1k/6pp/p2bB3/2p1Np1b/3Pn3/7P/P1Q2PP1/1RB1R1K1 b - - 0 23
>Adams played 23...Rc7 while 23...cxd4 looks like it holds everything nicely
>together. One line could be 23...cxd4 24.Qxc8 Qf6 25.Qc4 Qxe5 26.Qa5 and black
>looks OK to me.
>
>Torstein

CM9_R1 does not like 25.Qc4, and 26.Qa5 is not legal after 25.Qc4 (did you mean
26.Qa4 or 26.f4 Qa5?).

Here's its analysis on an AMD 2500:

Time	Depth	Score	Positions	Moves
0:03	1/8	0.54	701693		25.Ng6+ Bxg6 26.Qc4 Re8 27.Bd7
					Bf7 28.Qc2 Rd8 29.Rb7 Nc5
0:04	1/8	0.97	1079116		25.Qd7 Bxe5 26.f4 Bd6 27.Rxe4 Rd8
					28.Qxd8+ Qxd8 29.Rxd4 Bc5
0:08	1/9	0.49	2091978		25.Qd7 Qxe5 26.f4 Qc5 27.Rb7 d3+
					28.Be3 Qc3 29.Rc1 d2 30.Rxc3 d1=Q+
					31.Kh2 Bxf4+ 32.Bxf4 Qxd7 33.Rxd7
					Nxc3
0:20	1/10	0.08	5420025		25.Qd7 Qxe5 26.f4 Qc5 27.Rb7 d3+
					28.Kh1 Qd4 29.Rxe4 d2 30.Bxd2 fxe4
					31.Be3 Qa1+ 32.Kh2 Bxf4+ 33.Bxf4
					Rxf4
0:26	1/10	0.11	7008793		25.Ng6+ Bxg6 26.Qc4 Re8 27.Bd7
					Bf7 28.Qc6 Rd8 29.Rb6 Qe5 30.g3
1:12	1/11	-0.04	19377933	25.Ng6+ hxg6 26.Qc4 Qe5 27.g3 d3
					28.Bf4 Qc5 29.Be3 Qxc4 30.Bxc4
					d2 31.Rf1 f4 32.gxf4 Bxf4
1:35	1/11	0.93	25572248	25.Qd7 Qxe5 26.f4 Qf6 27.Bxf5 Nc5
					28.Qc6 Bf7 29.Ba3 Bxa2 30.Bxc5
					Bxc5 31.Qxc5 Qxf5 32.Qxf5 Rxf5
2:23	1/12	0.87	39606521	25.Qd7 Qxe5 26.f4 Qf6 27.Bxf5 Nc5
					28.Qc6 Bf7 29.Ba3 Bxa2 30.Rbc1
					Qxf5 31.Qxd6
6:02	1/13	0.00	102930214	25.Qd7 Bxe5 26.f4 Qh4 27.Rxe4 fxe4
					28.fxe5 e3 29.Ba3 e2 30.Bxf8 e1=Q+
					31.Rxe1 Qxe1+ 32.Kh2 Qxe5+ 33.Kg1
					Qe1+ 34.Kh2 Qe5+
20:15	2/14	0.00	340928962	25.Qd7 Bxe5 26.f4 Qh4 27.Rxe4 fxe4
					28.fxe5 e3 29.Ba3 e2 30.Bxf8 e1=Q+
					31.Rxe1 Qxe1+ 32.Kh2 Qxe5+ 33.Kh1
					Qe1+ 34.Kh2 Qe5+
23:11	2/14	0.16	393365143	25.Qxf8+ Qxf8 26.Nd3 Bf7 27.Bxf7
					Qxf7 28.f3 Nf6 29.Bf4 Bxf4 30.Nxf4
					Ng8 31.Rb4 Qxa2 32.Rxd4 Qb2 33.Rd7
					a5
37:48	3/15	0.14	662542010	25.Qxf8+ Qxf8 26.Nd3 Bf7 27.Bxf7
					Qxf7 28.f3 Nf6 29.Bf4 Bxf4 30.Nxf4
					h6 31.Rb8+ Kh7 32.Ne6 d3 33.Rd8
					Nd7 34.Kf2 d2
1:33:07	4/16	0.16	1717902720	25.Qxf8+ Qxf8 26.Nd3 Be8 27.Bc4
					Bf7 28.Bxf7 Qxf7 29.f3 Nf6 30.Bf4
					Bxf4 31.Nxf4 Ng8 32.Rb3 a5 33.g3
					a4 34.Rb2 Qc7

jm



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