Wednesday, March 30, 2022

Medusa Gambit 2.c4 g5 Cavicchi

The Indian Defense Medusa Gambit is audacious and tricky due to its rarity. Francesco Cavicchi has won several games with it as Black after 1.d4 Nf6 2.c4 g5. If White avoids doubled e-pawns by 5.Bxe5 (5.dxe5 is better), Black gains play against White’s king.

You might like my 100 recent wins in 10 moves or less:

sigvedyrhovden (1975) – Cavicchi (2045), Rated Correspondence lichess.org, 06.03.2022 begins 1.d4 Nf6 2.c4 g5 3.Bxg5 [3.Nc3 is good.] 3...Ne4 4.Bf4 e5 5.Bxe5 [Risky. Safer is 5.dxe5 Bb4+ 6.Nd2 f6 7.Ngf3. Black regains only one of the two gambit pawns. White should beat back the attack.] 5...Bb4+ 6.Nc3 Nxc3 7.Qb3 Nd5+ 8.Kd1 Nf6 9.Qxb4 Nc6 10.Qc3 Nxe5 11.dxe5 Ne4 12.Qd4 d5 13.cxd5 [Correct is 13.exd6 Qxd6 14.Qxd6 Nxd6 15.e3 when White's two extra pawns compensate for not being able to castle.] 13...Nxf2+ 14.Qxf2 Qxd5+ 15.Kc1 Qc4+ 16.Kb1 [This loses. Better is 16.Kd2 Qd5+ 17.Kc3 Qc6+ 18.Kd3 Qb5+ 19.Kc2 Qc4+ 20.Kd1=]
16...Qe4+ 17.Kc1 Bf5 18.e3 0–0–0 19.Nf3 Qc6+ [White resigns.] 0–1



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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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