the early 1890s. The main line Englund Gambit (2...Nc6, 3...Qe7) was introduced by Kārlis Bētiņš (1867–1943), who also established the Latvian Gambit. The Swedish player Fritz Englund (1871–1933) sponsored a thematic tournament in which all games had to begin with the position after 4.Qd5; the 1.d4 e5 gambit complex was later named after him. Main variations Main line Most common today is 2.dxe5 Nc6 3.Nf3 Qe7 4.Bf4 Qb4+ 5.Bd2 Qxb2 6.Nc3 Bb4 7.Rb1 Qa3. White can try to keep the extra pawn with 4.Qd5, the Stockholm Variation. Black can try a queenside fianchetto with 4...b6, or attempt to regain the pawn with 4...h6, but neither of those lines provide enough compensation for the pawn. Thus, Black usually challenges the e5-pawn immediately with 4...f6, when play continues 5.exf6 Nxf6 6.Qb3. Black does not get enough compensation with the delayed queenside fianchetto 6...b6, so the main line continues 6...d5. After 6...d5, 7.Nc3 Bd7!, threatening 8...Na5, leading to complications and good play for Black (e.g. 8.Bg5 Na5 or 8.Qxb7 Rb8 9.Qxc7 Qc5). After the stronger responses 7.Bf4 and 7.Bg5 (intending 7...Bd7 8.e3), however, while Black retains some compensation for the pawn, White keeps an edge. Instead, White often allows Black to regain the pawn at the cost of lagging development. The main line runs 4.Bf4 Qb4+ 5.Bd2 (5.Nc3!? is perfectly playable, as 5...Qxf4 is well met by 6.Nd5!, while 5...Qxb2 6.Bd2 transposes to the main line) 5...Qxb2 6.Nc3! White must avoid the notorious trap 6.Bc3 Bb4!, which wins for Black after 7.Bxb4 Nxb4 or 7.Qd2 Bxc3 8.Qxc3 Qc1#. After 6.Nc3, 6...Nb4? is refuted by 7.Nd4 c6 8.a4. The main line instead continues 6...Bb4 7.Rb1 Qa3 8.Rb3 Qa5 9.e4 Nge7 or 9.a3 Bxc3 10.Bxc3 Qc5, when White has some advantage due to the lead in development, but Black is not without chances due to the loose white pieces and shattered white pawn structure. However, in 2006 Bücker pointed out that 8.Nd5!, previously analysed by Grob as leading only to an unclear position, has been improved for White, and Black has yet to find a good response. Avrukh also considers this very strong, analyzing 8...Bxd2+ 9.Qxd2 Qxa2 10.Rd1 Kd8 11.Ng5 Nh6 12.e6! d6 (12...Qa5? 13.e7+! Ke8 14.Qxa5 Nxa5 15.Nxc7+ wins) 13.exf7 Rf8 14.Nxc7 Kxc7 15.Qxd6+ Kb6 16.Ne4! Qxc2 (or 16...Bf5 17.Nc3 Qxc2 18.Nd5+) 17.Nd2 Rxf7 18.Rb1+ Qxb1+ 19.Nxb1 with "a decisive advantage". Stefan Bücker offers 13...Qa5 for Black but concludes that White is clearly better