Black can refuse the Blackmar Diemer in various ways. I already covered 4..e3, 4...Bf5 and 4...e5. Let's look into 4...c5 (diagram) today.
White's next move is crtitical. 5.dxc5 exchanges queens but wins back the pawn - but this damages white's queenside considerably. Scheerer suggests 5.Bf4, but that is not really an option as balck gets the better play. That leaves 5.d5
Black strongest alternative now is 5...exf3 6.Nxf3 (diagram)
Black strongest move is now 6...g6.Scheerer now correctly indicates that white should not play 7.Bc4 and recommends 7.Bg5. However, my silicon assistant recommends 7.Bf4 (diagram)
After the obvious 7...Bg7, white has 8.Qd2 00 9.000 (diagram).
But now my system indicates 9...a6 gives black a small plus !? Seems there is some work to be done here !
It looks to me like a straight transposition to a "Long Bogo" variation (1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Nxf3 g6 6.Bf4 Bg7 7.Qd2 0-0 8.0-0-0 c5 9.d5 a6). In that line White is doing fine after 10.d6 which is a significant advantage of putting the bishop on f4. Having already played 4...c5 Black cannot get into more favourable/critical "Long Bogo" lines here.
ReplyDeletei Play the blackmar diemer by myself. the critical line in my opinion is in this Position after 5. ... exf 6 Nxf3 6. a6 !?. Black want to win a 2 nd pawn by nbd7-to b6. If you have a strong plan, please let me know. I am very interested to Play our Gambit as strong as i CAN ! ! !:)
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