Answers.Body: <p>In the <a href="https://en.wikipedia.org/wiki/Italian_Game,_Blackburne_Shilling_Gambit" rel="nofollow">Blackburne Shilling Gambit</a>  <code>1.e4 e5 2.Nf3 Nc6 3.Bc4 Nd4</code>, </p>
  
  <pre><code>  [StartPly "6"]
  
    [FEN ""]
    1. e4 e5 2. Nf3 Nc6 3. Bc4 Nd4 4. Nxd4 (4. O-O) (4. Nxe5 Qg5!)
  </code></pre>
  
  <p>black gambits the <code>e5</code>-pawn, but white gets an advantage if they simply decline the gambit with <code>4. Nxd4</code> or <code>4. 0-0</code>. Black is behind in development.</p>
  
  <p>If white accepts the sacrifice (<code>4. Nxe5</code>), then black gets good play with <code>4... Qg5!</code>.</p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2016-09-28T04:45:40.213Z
Answers.Text: Thanks for the suggestion, Dag! Even if White takes the pawn, they have to play exactly to avoid getting overrun in this line. I'll take a look at the opening's survivability in the 4.Nxd4 line...
Answers.UserDisplayName: jaxter
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2016-09-25T21:53:40.307Z
Answers.LastActivityDate: 2016-09-25T21:53:40.307Z
Answers.UserDisplayName: Dag Oskar Madsen
Answers.Body: <p>One example is the so-called <a href="https://en.wikipedia.org/wiki/Bishop%27s_Opening">Calabrian Countergambit</a>: 1.e4 e5 2.Bc4 f5. After 3.exf5 Nf6, black seems to be fine. However, white should ignore the gambit and play a developing move: 3.d4 (<a href="http://www.chessgames.com/perl/chessgame?gid=1650422">Bologan-Bednarek</a>), 3.d3, 3.Nf3 or 3.Nc3.</p>
  
  <pre>
  <code>
        [StartPly "4"]
  
        [FEN ""]
        1.e4 e5 2.Bc4 f5 3.exf5 (3.d4)(3.d3)(3.Nf3)(3.Nc3) Nf6
  
  </code>
  </pre>
  
  <p>Another example is a line in the exchange variation of the Ruy Lopez: 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6 dxc6 5.0-0 Bg4 6.h3 h5. Accepting the sacrifice with 7.hxg4 is clearly too dangerous as it opens the h-file for the black rook. White is probably slightly better if he declines the sacrifice with 7.d3 (<a href="http://www.chessgames.com/perl/chessgame?gid=1824854">Naiditsch-Mons</a>).</p>
  
  <pre>
  <code>
        [StartPly "12"]
  
        [FEN ""]
        1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6 dxc6 5.O-O Bg4 6.h3 h5 7.hxg4 (7.d3) hxg4
  
  </code>
  </pre>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2016-09-26T03:14:09.963Z
Answers.Text: Thanks, @Maxwell86. I looked at the Calabrese, Black can't castle kingside for much of the game. But the results show it's playable.
  Ruy Lopez 7...h5 gambit: If declined, the results for the gambiteer are unspectacular. After all, a bishop on g4 will be blocked on 3 diagonals. A knight might be more active. And Black needs a rook and bishop to hold the tension, while White just needs the knight. If White can unpin with Qd3, then h5 is just weak, and only a g5-g4 pawn storm would make it worthwhile. But most players take the piece and pay for it, so it's a good gambit to try!
Answers.UserDisplayName: jaxter
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2016-09-25T17:21:20.313Z
Answers.LastActivityDate: 2016-09-25T17:21:20.313Z
Answers.UserDisplayName: Maxwell86
Body: <p>Some gambits are playable whether the gambit is accepted or not, such as the Queen's Gambit, the King's Gambit, the Evans Gambit and the Budapest Gambit. Some are just dubious (the Elephant and a host of others). Some are playable if they're accepted, but the Declined forms are just worse for the gambiteer. Which gambits fall into this category?</p>
  
Tags: <opening><gambits>
Title: Which gambits get good results if they're accepted, but lead to poor results for the gambiteer if they're declined?
ThreadText: # Which gambits get good results if they're accepted, but lead to poor results for the gambiteer if they're declined?
  
  (Asked by: username_0 on 2016-09-25)
  
  Some gambits are playable whether the gambit is accepted or not, such as the Queen's Gambit, the King's Gambit, the Evans Gambit and the Budapest Gambit. Some are just dubious (the Elephant and a host of others). Some are playable if they're accepted, but the Declined forms are just worse for the gambiteer. Which gambits fall into this category?
  
  **Tags:** opening, gambits
  
  
  ---
  
  ## 2 answers
  
  ### Answer by username_2 on 2016-09-25. Score: 7 | Accepted answer
  
  One example is the so-called [Calabrian Countergambit](https://en.wikipedia.org/wiki/Bishop%27s_Opening): 1.e4 e5 2.Bc4 f5. After 3.exf5 Nf6, black seems to be fine. However, white should ignore the gambit and play a developing move: 3.d4 ([Bologan-Bednarek](http://www.chessgames.com/perl/chessgame?gid=1650422)), 3.d3, 3.Nf3 or 3.Nc3.
  
  ```
  
        [StartPly "4"]
  
        [FEN ""]
        1.e4 e5 2.Bc4 f5 3.exf5 (3.d4)(3.d3)(3.Nf3)(3.Nc3) Nf6
  
  ```
  
  Another example is a line in the exchange variation of the Ruy Lopez: 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6 dxc6 5.0-0 Bg4 6.h3 h5. Accepting the sacrifice with 7.hxg4 is clearly too dangerous as it opens the h-file for the black rook. White is probably slightly better if he declines the sacrifice with 7.d3 ([Naiditsch-Mons](http://www.chessgames.com/perl/chessgame?gid=1824854)).
  
  ```
  
        [StartPly "12"]
  
        [FEN ""]
        1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6 dxc6 5.O-O Bg4 6.h3 h5 7.hxg4 (7.d3) hxg4
  
  ```
  
  > **Comments:**
  > **username_0**: Thanks, @username_2. I looked at the Calabrese, Black can't castle kingside for much of the game. But the results show it's playable. Ruy Lopez 7...h5 gambit: If declined, the results for the gambiteer are unspectacular. After all, a bishop on g4 will be blocked on 3 diagonals. A knight might be more active. And Black needs a rook and bishop to hold the tension, while White just needs the knight. If White can unpin with Qd3, then h5 is just weak, and only a g5-g4 pawn storm would make it worthwhile. But most players take the piece and pay for it, so it's a good gambit to try!  
  
  ---
  
  ### Answer by username_1 on 2016-09-25. Score: 4
  
  In the [Blackburne Shilling Gambit](https://en.wikipedia.org/wiki/Italian_Game,_Blackburne_Shilling_Gambit) `1.e4 e5 2.Nf3 Nc6 3.Bc4 Nd4`,
  
  ```
    [StartPly "6"]
  
    [FEN ""]
    1. e4 e5 2. Nf3 Nc6 3. Bc4 Nd4 4. Nxd4 (4. O-O) (4. Nxe5 Qg5!)
  
  ```
  
  black gambits the `e5`-pawn, but white gets an advantage if they simply decline the gambit with `4. Nxd4` or `4. 0-0`. Black is behind in development.
  
  If white accepts the sacrifice (`4. Nxe5`), then black gets good play with `4... Qg5!`.
  
  > **Comments:**
  > **username_0**: Thanks for the suggestion, Dag! Even if White takes the pawn, they have to play exactly to avoid getting overrun in this line. I'll take a look at the opening's survivability in the 4.Nxd4 line...  
  
  ---
  
  