[net.chess] number-cruncher closes pawn structure

mclure%sri-prism@sri-unix.UUCP (08/28/84)

Administrivia
-------------
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worthy cause as one player here did with his move which won.
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The Vote Tally
--------------
The winner is: 9 ... Bg4 (B-KN5)

A total of 24 moves were cast.

The Machine Moves
-----------------
	Depth	Move	Time for search		Nodes	   Machine's Estimate
	8 ply	d5    17 hours, 8 minutes    6.5x10^7           +=
		(P-Q5)

	        Humans			  Move        # Votes
	BR ** -- BQ BK BB -- BR	   9 ... Bg4  (B-N5)   12
	** BP ** -- ** BP BP BP	   9 ... Be7  (B-K2)    6
	BP ** BN BP -- BN -- **	   9 ... exd4 (PXP)     3   
	** -- ** WP BP -- ** --	   9 ... Qb6  (Q-N3)    3
	-- ** -- ** WP ** BB **	   9 ... h5   (P-KR4)   1
	** -- ** -- ** WN ** --
	WP WP -- ** -- WP WP WP
	WR WN WB WQ WR WB WK --
	     Prestige 8-ply

The machine still thinks it is ahead positionally. Its evaluation 
improved by about 8% of a pawn over the last position.

The Game So Far
---------------
1. e4  (P-K4)   c5 (P-QB4)	6. Re1  (R-K1)  a6  (P-QR3)
2. Nf3 (N-KB3)  d6 (P-Q3)	7. Bf1  (B-KB1) e5  (P-K4)
3. Bb5+(B-N5ch) Nc6 (N-QB3)	8. d4   (P-Q4)  cxd4 (PXP)
4. o-o (O-O)    Bd7 (B-Q2)      9. cxd4 (PXP)   Bg4  (B-N5)
5. c3  (P-QB3)  Nf6 (N-KB3)    10. d5   (P-Q5)

Commentary
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  From Wilkins <WILKINS@SRI-AI.ARPA>, USCF ?

    Regarding Sloan's analysis of why the machine
    thought it was behind after book: he leaves out
    the most likely explanation, namely, that the
    evaluation function is wrong sometimes (try
    writing one yourself if you think you can always
    get the "right" answer).  Concluding that the
    opening line does not match the machine's style
    from the negative evaluation assumes that the
    evaluation is correct with respect to the
    machine's style (unlikely).

  From John W. Perry <JPERRY@SRI-KL.ARPA>, USCF 1890ish

       I don't see why everybody is worried about Black's king being in the
    center since black CANNOT force the king file to be opened.  Black's best
    9th move seems very clear to me 9...Bg4.  Following this move I don't see
    how White can proceed favorably.  10 d5 will lead to 10...Nd4 which will 
    lead to several possibilities none of which look good for white --- either
    a loss of the two bishops or a breakup of pawns on his castled kingside.
    If White counters with Nbd2 and then white cannot use his queen knight
    to occupy the hole on d5.  In summary, it appears that most positional
    trumps are in black's favor --- he can occupy the QB file quicker than

  From: Bernard Gunther <BMG@MIT-XX.ARPA>, USCF 1800ish

    My vote goes to: 9:  Bg4
    This forces action in the middle of the board while allowing us
    to get out of the problem of having an isolated pawn.

  From: rod@Maryland.arpa   (Rodrigo Fontecilla), USCF ?

    I must apologize for my past analysis. I had the wrong position.
    e5 wasn't that bad after all.

    My vote is for 

    9...., Bg4

    forcing 10. dxe and the game is even after

    10.....,exd
    11.Qxd8 Rxd8

    or 
    11. Qb3 Be7
    12  Bg5 0-0

Solicitation
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    Your move, please?

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