What do I do as a London system player against the Englund gambit

Englund is unsound. Just capture the central pawn and say thank you.

Just take the pawn, but do not try to hold it.

1.d4 e5 2.dxe5 Nc6 3.Nf3 Qe7.  At this point, let him have it.  Do not was Linton trouble with Bf4 Qb4 tricks.

Develop normal, like 4.e3, and if he takes on e5, play 5.Nbd2 or 5.Be2.  Let him take on f3.  He I wasting time getting his pawn back an you are developing your pieces.  Your lead in development gives White a significant advantage.

If you have no idea what to do with a semi-open file, you need to get off the opening books and read about basic chess strategy.

I would say first a beginners strategy book, like Winning Chess Strategies by Yasser Seiriwan, and then Watson's 2 classics on Modern Chess Strategy and Chess Stratwgy in Action (Both published by Gambit (gambitbook.com) and both available for purchase on Amazon.

There's a very specific line that gets an advantage against the Englund.

But, if you aren't too interested in learning some theory, then you might like a simple approach, like this one (with an early c3):

Now you've got an even, no-hassle game, where you can just "play chess" from here on out.

Another option would be to simply get your queen bishop "outside" before you play e3, like this:

Either way should be fine, if you just want to leap right into a game without having to learn anti-Englund theory.

Are you a gambit player? Transpose into the Danish Gambit.

When people play the Englund Gambit, they have learned a trick and hope you will fall for it. But if you know the trick, you can avoid it, and trick them.

The trick they hope you fall for, is this:

This is terrible for White. 6. Bc3 looks a good move, but it is a blunder. Your trick will be to know that, and play 6. Nc3:

You may want to play around with the position a bit (at your level, you are not guaranteed a win after 6. Nc3) but next time someone tries the Englund Gambit on you, you abandon the London, play this instead, and make life miserable for your opponent.

Actually you can easily destroy englund gambit, for example in this line: 1.d4 e5 2.dxe5 Nc6 3.Nf3 Qe7 4. Bf4 Qb4+ 5.Bd2 Qxb2 6.Nc3 (DO NOT play Bc3 or else they will pin the bishop) If they play something natural like 6... Ne7 7. Rb1 the only safe spot is Qa3 and 8. Nb6 attack the queen and threatening a fork on a rook and king. The only spot the queen can move to defend is being covered by the bishop on d2.

Oops, I didn't see the post above.

Play 1.e4 and learn how to play open positions and gambits. Come back to the London once you are 1600.

Hah! Touché.

Though, it's all about experience level.

I glanced at several of the OP's recent games. In his two most recent games, he placed his queen en prise without provocation.

(Example from one of his games:

I came to the conclusion that the standard response against the Englund would be too tactical for him to grasp, at this current point in his chess journey.

So I offered a simpler approach, instead.

At that point why not 3 f4? Is there something wrong with it?

While I completely agree with you pfren, I could see the confusion at the lower level.  People at the lower level don't always see the criticality of the difference between the king and queen, and view openings like the Veresov as having equal validity to the Ruy Lopez because the Veresov could be described to a beginner as a "Queeside Ruy Lopez", if you get what I am saying.

Well, his idea of 3.f4 is like the Scandinavian flipped left to right.  He is probably comparing 1.e4 d5 2.exd5 Nf6 3.c4 (a legit line, though I find 3.d4 to be better) to 1.d4 e5 2.dxe5 Nc6 3.f4.

So he probably figures the weakness on e4 is no big deal like the weakness on d4 in the Scandinavian lines with 3.c4 (or in the lines of the Tal Gambit - 1.e4 c5 2.f4 d5 3.exd5 Nf6 where White plays c4), but the King safety you mention (to me the more critical factor) is the big problem.  The 3.c4 line of the Scandinvian opens up the Queen, whereas 3.f4 in the Englund opens up the King.

You guys dont make sense...but anyways. Its funny that you would still post on it.

ROFLMAO!  Good one!  And the truth too!

Not mr. b4 is the best opening.

Or should we take a replay from 'f4 is fine...no its horrible' pfren

Its a different space...you know like what is strategy and no one could answer. Embarrassing.

The easiest thing to do:

3.f4 is a nonsense move. Frankly, you're rated too high to suggest it.

Like someone else mentioned, there is basically only one trick to this opening... so as white do whatever you want as long as it isn't falling for that.

And since white can do whatever they want, they wont be playing 3.f4, because that's silly.

I know....a GM says its nothing and sells it. Now he lost like 9 of 10 games...never mind that I suppose.  1 e4 nc6 2 d4 e5 3 dxe5....

But the point of mentioning f4 was holding onto the pawn. Which was about his rating and there are 3 courses of action. You believe to just memorize this move. A steady diet of tricks and who knows what. Maybe his limit is 600 I dont know.

And so really there is no stupid answer and no stupid question.