followed. In general, the opening is unpopular at master level but is more popular at club level. It is recommended to study the Göring Gambit in connection with the Danish. 4...d5 Black can equalise by transposing to the Danish declined with 4...d5, when the critical line runs 5.exd5 Qxd5 6.cxd4 Bg4 7.Be2 Bb4+ 8.Nc3 Bxf3 9.Bxf3 Qc4 (or 6...Bb4+ 7.Nc3 Bg4 8.Be2 Bxf3 9.Bxf3 Qc4, leading to the same position), often referred to as the Capablanca Variation in view of the strength of Black's concept in the game Marshall–Capablanca, Lake Hopatcong 1926. This line (which can also arise from the Chigorin Defense to the Queen's Gambit), forcing White to either exchange queens or forgo the right to castle with the risky 10.Be3, deters many players from employing this gambit. Equal endgames result after either 10.Qb3 Qxb3 11.axb3 Nge7 or 10.Bxc6+ bxc6 11.Qe2+ Qxe2+ 12.Kxe2 Ne7. If Black avoids steering for Capablanca's ending, e.g. with 6...Nf6 or 7...0-0-0 in the above lines, then White obtains good piece play in return for the isolated d-pawn. White can deviate with 6...Bg4 7.Nc3, with the idea of meeting 7...Bb4 with 8.a3 (or 6...Bb4+ 7.Nc3 Bg4 8.a3) or the rare 5.Bd3, neither of which promise an advantage but which avoid those endings. Other ways of declining Black can also decline with 4...Nf6, transposing to a line of the Ponziani Opening. The continuation 5.e5 Ne4 was endorsed by Dangerous Weapons, 1.e4 e5 (Everyman Chess, 2008) but Tim Harding considers 5...Nd5 a better try for equality, when White can continue 6.Bb5 a6 7.Ba4 Nb6 8.Bb3, 6.Qb3, 6.Bc4 or 6.cxd4. Another possibility is 4...Nge7 intending 5...d5, when the critical continuation is 5.Bc4 d5 6.exd5 Nxd5 7.0-0. According to IM John Watson Black may be able to equalise with 7...Be7. However, declining with 4...d3 allows White some advantage after 5.Bxd3 d6 6.Bf4 Be7 7.h3 Nf6 8.Nbd2 Bd7 9.Qc2 according to Batsford Chess Openings 2. One-pawn gambit: 4...dxc3 5.Nxc3 If Black accepts the gambit with 4...dxc3, White can commit to sacrificing only one pawn with 5.Nxc3. Black's most critical response is generally considered to be 5...Bb4, when White does not get enough compensation after 6.Bc4 d6 7.0-0 Bxc3 8.bxc3 Nf6!, when 9.Ba3 Bg4 is insufficient and 9.e5 Nxe5 10.Nxe5 dxe5 11.Qb3 (11.Qxd8+ Kxd8 12.Bxf7 Ke7 is also good for Black) 11...Qe7 12.Ba3 c5 does not give enough compensation for two pawns. White can deviate with 7.Qb3, when the old main