user1105: My question is about Omega Gambit.
[Title "Omega gambit"]
[fen "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1"]

1. d4 Nf6 2. e4 Nxe4

Is it too dangerous for white? what are the ideas for white? And what is the winning percentage for white? Is it still played among titled players?

user291: 
Is it too dangerous for white?

Yes.

what are the ideas for white?

Try to use your open lines and get good piece play, I suppose. Black is already better, though (up a central pawn with no weaknesses), so you shouldn't expect to succeed.

And what is the winning percentage for white?

In my database it is 19%.

Is it still played among titled players?

No, and it never was (I can find only 2 games where it was played by someone with a rating over 2200).

1105: <p>My question is about Omega Gambit.</p>

<pre><code>[Title "Omega gambit"]
[fen "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1"]

1. d4 Nf6 2. e4 Nxe4
</code></pre>

<p>Is it too dangerous for white? what are the ideas for white? And what is the winning percentage for white? Is it still played among titled players?</p>
 291: <blockquote>
  <p>Is it too dangerous for white?</p>
</blockquote>

<p>Yes.</p>

<blockquote>
  <p>what are the ideas for white?</p>
</blockquote>

<p>Try to use your open lines and get good piece play, I suppose. Black is already better, though (up a central pawn with no weaknesses), so you shouldn't expect to succeed.</p>

<blockquote>
  <p>And what is the winning percentage for white?</p>
</blockquote>

<p>In my database it is 19%.</p>

<blockquote>
  <p>Is it still played among titled players?</p>
</blockquote>

<p>No, and it never was (I can find only 2 games where it was played by someone with a rating over 2200).</p>
