mclure%sri-unix@sri-unix.UUCP (10/26/84)
The Vote Tally
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The winner is: 19 ... g6
The Machine Moves
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Depth Move Time for search Nodes Machine's Estimate
8 ply Rac1 12:34 hrs 4.5x10^7 +33% of a pawn
(QR-B1)
Humans Move # Votes
-- BR -- BQ BN BR -- BK 19 ... g6 8
** -- ** BB BB BP ** BP 19 ... f5 2
BP ** -- BP -- ** BP ** 19 ... g5 1
** BP ** WP BP -- ** --
-- ** -- ** WP ** -- **
** WQ ** -- WB WN WN WP
WP WP -- ** -- WP WP **
** -- WR -- WR -- WK --
Prestige 8-ply
Editor's Comment
----------------
The machine's evaluation has gone from
.03 -> .04-> .11 -> .20 -> .33
over the course of the last five moves. I've seen this
happen before in other 8-ply games it has played.
Usually it means bad news for the machine's opponent in
the near future. Good luck!
The Game So Far
---------------
1. e4 (P-K4) c5 (P-QB4) 11. Be2 (B-K2) Nxe2 (NxB)
2. Nf3 (N-KB3) d6 (P-Q3) 12. Qxe2 (QxN) Be7 (B-K2)
3. Bb5+(B-N5ch) Nc6 (N-QB3) 13. Nc3 (N-QB3) O-O (O-O)
4. o-o (O-O) Bd7 (B-Q2) 14. Be3 (B-K3) Ne8 (N-K1)
5. c3 (P-QB3) Nf6 (N-KB3) 15. h3 (P-KR3) Bd7 (B-Q2)
6. Re1 (R-K1) a6 (P-QR3) 16. Qc4 (Q-B4) b5 (P-QN4)
7. Bf1 (B-KB1) e5 (P-K4) 17. Qb3 (Q-N3) Rb8 (R-N1)
8. d4 (P-Q4) cxd4 (PXP) 18. Ne2 (N-K2) Kh8 (K-R1)
9. cxd4 (PXP) Bg4 (B-N5) 19. Ng3 (N-N3) g6 (P-N3)
10. d5 (P-Q5) Nd4 (N-Q4) 20. Rac1(QR-B1)
Commentary
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JPERRY@SRI-KL
I think 19...f5 20 ef Bxf5 21 Nxf5 Rxf5 leads to a nice position which
black may not be able to strengthen. I also see this variation leading to
the loss of our biggest positional trump i.e. our light-squared B which
can participate in our K-side attack and also defend the b5 square.
Therefore, I vote for 19...g6 (P-KN3) because I want to recapture on
f5 with a pawn. As I stated about 6 moves ago, this looks like a typical
Black K-side attack arising out of a King's Indian-like opening. Unlike a
King's Indian though, our KB may be able to attack, not just defend.
I don't want to supply alot of tactical justification for g6 because
my motives for 19...g6 are purely positional since there are no immediate
tactics in this position. In similar, K-Indian positions where Black can
retake with a B or a P, Botvinnik stated that "as every Russian schoolboy
knows, you ALWAYS retake with the pawn in such positions". Who can fight
the Soviet chess establishment (har, har).
PNELSON@NADC
19...Pg5
I still see no advantage from f5.
A response to g5 should be more difficult.
VANGELDER@SU-SCORE
I vote 19. ... g6.
If 20. Bh6 Ng7. I think we are finally ready to play f5 and recapture with
a pawn if White exchanges.
I hope the majority rejects the editor's suggestion of 19. ... f5 as this
exchanges off our good bishop and gives White e4 for his knight.
I am not at all concerned about the computer's evaluation being positive
for itself. After all, it looked at thousands of variations, applied a
fairly random evaluation function to each, and took the best. It would
be amazing if this was NOT positive. This probably explains why both
human opponents frequently think they are winning from different sides
of the same position.
BONO@BBN-CLXX
I vote for 19 ... g6.
19 ... f5 20 ef5 Bxf5 21 Nxf5 Rx5 isn't very good for black. He needs
his light squared bishop both to support his king side advances and to
defend on the queen side.
I expect white to play 20 Rac1 here and though black has made some
progress, he still has many difficulties in the position. His kingside
advance is going to be slow because his pieces are in each other's way.
20 ... f5 21 ef5 gf5 22 Bd2 looks very complicated to me (white threatens
23 Qa3 winning a pawn).
REM@SU-AI
My vote: 19 ... P-KN3 (g6)
(if nothing exciting happens, N-Kn2 next (Ng7) giving us lots of
options about how to recapture after P-KB4 (f5) PxP (e4xf5))
Solicitation
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Your move, please?
Replies to Arpanet: mclure@sri-prism, mclure@sri-unix or
Usenet: ucbvax!menlo70!sri-unix!sri-prism!mcluretom@LOGICON.ARPA (10/27/84)
I vote 19...Pf5. Boring boring boring. But nothing else shows any major advantages.