Saturday, March 12, 2022

Blackmar-Diemer 9.Bg2 Nbd7

White wins with a kingside mating attack in a Blackmar-Diemer Gambit with a Teichmann Retreat 5.Nxf3 Bg4 6.h3 Bh5. After 7.g4 Bg6 8.Ne5 e6 9.Bg2 (attacking b7), Black chose the rare 9…Nbd7 in the game between Loris Collart and A. Martin Fernandez.

If you like 1.Nc3 or 1...Nc6, you might like:
Chess Strategy Queen's Knight

Collart (1923) – Martin Fernandez (1659), 2nd Gran Canaria Online lichess, 27.02.2022 begins 1.e4 d5 2.d4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Nxf3 Bg4 6.h3 Bh5 7.g4 Bg6 8.Ne5 e6 9.Bg2 Nbd7 10.Qf3 [Critical is 10.Bxb7 Nxe5 11.dxe5 Qxd1+ 12.Nxd1 Rb8 13.Bc6+ Nd7 14.Be3 with chances for both sides.] 10...c6 [Or 10...Nxe5 11.dxe5 Nd5 12.Nxd5 Qxd5 13.Qe2 Qa5+] 11.Bg5 [Better is 11.Nxg6 hxg6 12.0–0 threatening g5 and Qxf7 mate.] 11...Be7 [11...Bxc2!?] 12.0–0–0 0–0 13.h4 h6 14.Nxg6 fxg6 15.Be3 [15.Bd2 favors White.] 15...Nd5 16.Qe4 Nxc3 17.Qxe6+ Kh8 18.bxc3 Rf6 [Better is 18...Re8 threatening 19...Ba3+ and 20...Rxe6.] 19.Qe4 [More accurate is 19.Qb3 to protect the king and queen.] 19...Bf8 [If 19...Ba3+ 20.Kd2 Nc5 21.Qe5 Re6 and Black is better.] 20.g5 Rf7 21.gxh6 Qa5 22.hxg7+ Kxg7 [If 22...Bxg7 23.Qxg6 White has a promising attack.] 23.h5 gxh5 24.Rdg1 Nf6 25.Bf3+ Kh8 26.Qg6 Qa3+ 27.Kd2 Qe7
28.Rxh5+ Nxh5 29.Qg8# [Black is checkmated] 1–0



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