Author: Eelco de Groot
Date: 07:42:31 02/05/06
Go up one level in this thread
On February 05, 2006 at 07:39:06, Joseph Ciarrochi wrote:
>[D] rnbqk2r/ppp2ppp/5n2/3p2B1/1b1P4/2N5/PP2PPPP/R2QKBNR w KQkq - 0 6
>
>
>the last black move, bb4, is given a ? by fritz book. Consistent with this view,
>chesslab has white winning 50% and losing only 9%. My 1 million data base has
>white winning 53% and losing only 11% (n = 90). the average strength of people
>who play bb4 is 2274 but their average performance is 2144
>
>The engines think the position is fine.
>
>Am i missing something? Why do humans do so badly at a position the engines
>think is fine?
Hello Joseph,
A good theorybook on the French could probably tell much more about this line,
but I don't have any specific books myself on the French. Simply exploring
Jeroen Noomen's Pro Deo booklines I thought maybe the following line could be a
good starting point for your own analysis?
[Event "?"]
[Site "?"]
[Date "5/2/2006"]
[Round "?"]
[White "Eelco de Groot"]
[Black "Eelco de Groot"]
[Result "*"]
[Opening "C01 French: Exchange, Svenonius Variation"]
1. e4 e6 2. d4 d5 3. exd5 exd5 4. Nc3 Nf6 5. Bg5 Bb4 6. Bd3 h6 7. Bh4 O-O 8. Ne2
Re8 9. O-O c6 10. f3 Nbd7 11. Kh1 Nf8 *
Now Jeroen's book gives a minus to 12.g4 meaning that Pro Deo should not play
it. There could be a known refutation of this move but it is not in the standard
book, it could also be a possible computertype move, looks a bit like it, that
is not good because it leaves White's King very in the open. Maybe the stem game
of the above line can be found in your database?
Pro Deo Vulcan on its own after 11..Nf8:
1.e4 e6 2.d4 d5 3.exd5 exd5 4.Nc3 Nf6 5.Bg5 Bb4 6.Bd3 h6 7.Bh4 O-O
8.Nge2 Re8 9.O-O c6 10.f3 Nbd7 11.Kh1 Nf8
[D]r1bqrnk1/pp3pp1/2p2n1p/3p4/1b1P3B/2NB1P2/PPP1N1PP/R2Q1R1K w - -
00:00:00 1.00 -0.34 12.Bxf6 Qxf6
00:00:00 1.04 0.07 12.Nf4
00:00:00 1.06 0.09 12.Ng3
00:00:00 1.09 0.21 12.Qd2
00:00:00 1.27 0.21 12.Qc1
00:00:00 2.00 -0.13 12.Qc1 Qd6 13.Bxf6 Qxf6
00:00:00 2.01 -0.11 12.Qd2 Qd6 13.Bxf6 Qxf6
00:00:00 2.03 0.02 12.a3 Bd6
00:00:00 3.00 0.13 12.a3 Bxc3 13.Nxc3 Qd6 14.Bxf6
00:00:00 4.00 0.05 12.a3 Bd6 13.Ng3 g6
00:00:00 5.00 0.09 12.a3 Bd6 13.Qd2 Ng6 14.Bg3
00:00:00 6.00 0.09 12.a3 Bd6 13.Bg3 Ng6 14.Re1 Bxg3 15.hxg3
00:00:00 7.00 0.00 12.a3 Bd6 13.Re1 Ng6 14.Bg3 Nh5 15.Qd2
00:00:00 8.00 0.05 12.a3 Bxc3 13.bxc3 Ng6 14.Bg3 Nh5 15.c4 Nxg3
16.Nxg3
00:00:01 9.00 0.04 12.a3 Bd6 13.Re1 b6 14.Bg3 Ng6 15.b4 Re3
00:00:02 10.00 -0.02 12.a3 Bd6 13.Re1 Ng6 14.Bg3 Bxg3 15.hxg3 Qd6
16.Qd2 Bd7
00:00:07 11.00 0.01 12.a3 Bd6 13.Re1 Ng6 14.Bg3 a5 15.Kg1 Nh5 16.Bxd6
Qxd6
00:00:12 12.00 0.07 12.a3 Bd6 13.Qd2 b6 14.Rae1 Ng6 15.Bf2 Nh5
00:00:22 13.00 0.02 12.a3 Bd6 13.Qd2 Ng6 14.Bg3 Nh5 15.Bxd6 Qxd6
16.Rfe1 Bd7 17.Kg1 c5 18.g3
00:00:57 14.00 0.01 12.a3 Bd6 13.Qd2 Ng6 14.Bg3 Bxg3 15.hxg3 Qd6
16.b3 Bd7 17.Na4 Nh5 18.Bf5
00:04:07 15.00 0.00 12.a3 Ba5 13.Qd2 Ng6
00:16:01 16.00 0.05 12.a3 Ba5 13.b4 Bc7 14.Qd2 Ng6 15.Bg3
12.a3 seems a reasonable move to me as a first try, and the game about even but
not easy to judge. If White has good statistical results with 5.Bg5, it could
also be of the surprise effect and some tactical traps Black can fall into? The
position looks a bit similar to a NimzoIndian too, maybe there are some common
themes to find there with Bb4 and White playing Bg5? 5.Bg5 seems like a playable
line to me for White to avoid much French preparation if White does not like to
study the French, but maybe it is still suspect for some reason? For 5..Bb4 I do
not see a quick refutation with my computerassistants at least not in the above
line.
Regards, Eelco
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