The Englund Gambit is a rarely played chess opening that starts with the moves:
Black's idea is to avoid the traditional closed queen's pawn games and create an open game with tactical chances, but at the cost of a pawn. The gambit is considered weak; Boris Avrukh writes that 1...e5 "seems to me the worst possible reply to White's first move". It is almost never seen in top-level play, although Paul Keres once tried it. The gambit is occasionally seen in amateur games and in correspondence chess, and the 3...Qe7 version of the gambit was frequently used by Henri Grob.
Black has numerous ways to continue after 1.d4 e5 2.dxe5. Black can offer to exchange the d-pawn for White's e-pawn with 2...d6, arguing that after White captures with exd6, ...Bxd6 will offer Black a lead in development to compensate for the pawn. After the continuation 2...Nc6 3.Nf3, Black may round up the e5-pawn with 3...Qe7, intending to meet 4.Bf4 with the disruptive 4...Qb4+, and ensuring that White's only way to maintain the extra pawn is to expose the queen with 4.Qd5, but in subsequent play the queen can prove to be awkwardly placed on e7. 3...Nge7 intending 4...Ng6 is another way to round up the e5-pawn, but requires two tempi, while Black can also offer to exchange the f-pawn with 3...f6, or 3...Bc5 intending a subsequent...f6, with similar play to the Blackmar–Diemer Gambit except that Black has one tempo less.
The gambit can be considered an inferior relative of the Budapest Gambit and Albin Countergambit, as by comparison with those gambits, White has not weakened the b4-square with c2–c4, and may be able to put that tempo to better use in order to avoid giving away any key squares.Accordingly, with careful play White should be able to obtain a greater advantage against the Englund than against the Budapest and Albin, against all approaches by Black. However, since the Budapest and Albin rely upon White continuing with 2.c4, and can thus be avoided by continuations such as 2.Nf3 (when 2...e5? can be met by 3.Nxe5 in either case), it is easier for exponents of the Englund Gambit to get their opening on the board and avoid getting into a typical queen's pawn type of game.
1.d4 e5 is also known as the Charlick Gambit after Henry Charlick (1845–1916), the second Australian chess champion, who introduced the 2...d6 line in 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 Carl Anton 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.