Answers.Body: <p>White can protect the pawn with Nc3, then attack the black  Q with Nf3 to gain a tempo in addition to the advantage of the first move.</p>
  <p>It is not a blunder but Qh4 by black is a poor move and inferior.</p>
  <p>Perhaps is is a totally bad move as it does not show up as played by anybody at any level in chess tempo list of millions of games.</p>
  
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Answers.CreationDate: 2021-01-24T22:13:33.383Z
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Answers.UserDisplayName: Phischmaster
Answers.Body: <p>It is not a blunder, who said and what is your reference if it is a blunder, I would like to see the concrete refutation variant.</p>
  <p>A blunder is a moving that change evaluation of a position few points that is irreversible.
  Qh4 is not a good move and gives advantage to white but it is not a blunder and not losing move.
  I am not a chess master but my Fide rating is above 2100. I am happy to answer more in details if you want.</p>
  <p>In general developing queen soon is not a good idea, because this heavy and expensive piece will get target of opponent’s small pieces while developing. Nc3 and then Nf3 gives good advantage to white...</p>
  
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Answers.CreationDate: 2021-01-26T15:26:52.883Z
Answers.Text: Lichess said so (see the link I posted)
Answers.UserDisplayName: MetaColon
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Answers.CreationDate: 2021-01-27T20:54:49.000Z
Answers.Text: OK, first of all, Lichess is an Opensource free software with many people contributing on it, information there is not necessary correct, might be useful but sometimes confusing specially for beginners. I would recommend consult with Master or use proper chess engine. There is paid and free, for example you can buy Fritz or Chessbase to analyze positions and it evaluate for us (based on value of pawns) or you can use Stockfish which available for free and is very strong chess engine too. After Qh4 as I said white get advantage but not wining. So it is not a blunder move.
Answers.UserDisplayName: Jackal
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Answers.Text: @Jackal as far as I know, Lichess uses Stockfish as its chess engine.
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Answers.UserDisplayName: Jackal
Answers.Body: <p>I would not go so far as to call it a &quot;blunder&quot;, but White is getting lots of compensation for the pawn. They get a big lead in development and Black's queen can be attacked.</p>
  <p>Here's one way it could go:</p>
  <pre><code>[FEN &quot;&quot;]
  
  1. e4 e5 2. d4 Qh4 3. Nf3 Qxe4+ 4. Be2 exd4 5. O-O Nc6 6. Re1 Be7 7. Na3 Nf6 (7... a6 8. Bxa6) 8. Nb5 O-O 9. Nxc7 Rb8 10. Bb5 Qg6 11. Bxc6 Bd8 12. Ne5 Qf5 13. Bf3 Bxc7 14. g4 Nxg4 (14... Qe6 15. Ng6) 15. Bxg4 Qf6 16. Nd3 *
  </code></pre>
  <p>It's also worth pointing out that White can keep things nice and simple if they choose, and not give up the pawn:</p>
  <pre><code>[FEN &quot;&quot;]
  1. e4 e5 2. d4 Qh4 3. dxe5 Qxe4+ 4. Qe2 
  </code></pre>
  <blockquote>
  <p>Furthermore, if black makes the mistake to move 3.g3</p>
  </blockquote>
  <p>The computer is never going to care about what happens if your opponent makes a mistake - it always assumes your opponent will play the <em>best</em> move.</p>
  
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Answers.CreationDate: 2021-01-24T22:11:00.010Z
Answers.Text: _"The computer is never going to care"_ And humans will neither when analysing. As a beginner it's tempting to try to set traps to your opponent, but you'll play much better if you have the patience to always assume your opponent sees everything you see and plays the best move.
Answers.UserDisplayName: JiK
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Answers.Text: @JiK I would agree with that, unless you're so screwed that you require your opponent to make a big mistake.  (Maybe you're down a rook in the middle game).  At that point, it might be better to sacrifice material to set a trap.
Answers.UserDisplayName: Patrick M
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Answers.Text: @PatrickM: It is in fact [possible to quantifiably identify and favour traps without sacrificing optimality](https://chess.stackexchange.com/a/29258/9192).
Answers.UserDisplayName: user21820
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2021-01-25T04:10:26.300Z
Answers.Text: @JiK: See the post I linked above for how one can program a chess AI to favour traps although in a sense still playing optimality. In particular, note the linked follow-up comment in chat [that many current chess engines play badly when they are losing badly because they don't set traps](https://chat.stackexchange.com/transcript/107090?m=54170402#54170402).
Answers.UserDisplayName: user21820
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Answers.UserDisplayName: D M
Body: <p>In Lichess, this sequence is rated as a blunder. However, black can take the pawn afterwards without white being able to prevent it (3.Nf3 Qxe4), so it seems like a good move to me.</p>
  <p>Furthermore, if white makes the mistake to move 3.g3, black takes the rook (3.Qxe4+ 4.Qe2 Qxh1).</p>
  <pre><code>[FEN &quot;rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1&quot;]
  
  1. e4 e5 2. d4 Qh4 3. Nf3
  </code></pre>
  <p><a href="https://lichess.org/Ga4TDrjz" rel="nofollow noreferrer">This (Blitz) game</a> of mine caused my confusion.</p>
  
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2021-01-24T17:07:25.847Z
Comments.Text: Why do you assume that 3.Nf3 and 3.g3 are the only available choices?
Comments.UserDisplayName: David
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2021-01-24T20:13:18.793Z
Comments.Text: Nf3 was the option proposed by the AI and g3 mine
Comments.UserDisplayName: MetaColon
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2021-01-25T13:37:35.683Z
Comments.Text: Nf3 is the computer's suggestion.... but that's because computers are awesome at chess!. A human player can simply go for Nc3 (protecting the e4 pawn) and have an excellent position
Comments.UserDisplayName: David
Tags: <opening><learning><blunder>
Title: Why is 1.e4 e5 2.d4 Qh4 a blunder?
ThreadText: # Why is 1.e4 e5 2.d4 Qh4 a blunder?
  
  (Asked by: username_0 on 2021-01-24)
  
  In Lichess, this sequence is rated as a blunder. However, black can take the pawn afterwards without white being able to prevent it (3.Nf3 Qxe4), so it seems like a good move to me.
  
  Furthermore, if white makes the mistake to move 3.g3, black takes the rook (3.Qxe4+ 4.Qe2 Qxh1).
  
  ```
  [FEN "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1"]
  
  1. e4 e5 2. d4 Qh4 3. Nf3
  
  ```
  
  [This (Blitz) game](https://lichess.org/Ga4TDrjz) of mine caused my confusion.
  
  **Tags:** opening, learning, blunder
  
  > **Comments:**
  > **username_1**: Why do you assume that 3.Nf3 and 3.g3 are the only available choices?  
  > **username_0**: Nf3 was the option proposed by the AI and g3 mine  
  > **username_1**: Nf3 is the computer's suggestion.... but that's because computers are awesome at chess!. A human player can simply go for Nc3 (protecting the e4 pawn) and have an excellent position  
  
  ---
  
  ## 3 answers
  
  ### Answer by username_5 on 2021-01-24. Score: 4 | Accepted answer
  
  I would not go so far as to call it a "blunder", but White is getting lots of compensation for the pawn. They get a big lead in development and Black's queen can be attacked.
  
  Here's one way it could go:
  
  ```
  [FEN ""]
  
  1. e4 e5 2. d4 Qh4 3. Nf3 Qxe4+ 4. Be2 exd4 5. O-O Nc6 6. Re1 Be7 7. Na3 Nf6 (7... a6 8. Bxa6) 8. Nb5 O-O 9. Nxc7 Rb8 10. Bb5 Qg6 11. Bxc6 Bd8 12. Ne5 Qf5 13. Bf3 Bxc7 14. g4 Nxg4 (14... Qe6 15. Ng6) 15. Bxg4 Qf6 16. Nd3 *
  
  ```
  
  It's also worth pointing out that White can keep things nice and simple if they choose, and not give up the pawn:
  
  ```
  [FEN ""]
  1. e4 e5 2. d4 Qh4 3. dxe5 Qxe4+ 4. Qe2 
  
  ```
  
  > Furthermore, if black makes the mistake to move 3.g3
  
  The computer is never going to care about what happens if your opponent makes a mistake - it always assumes your opponent will play the *best* move.
  
  > **Comments:**
  > **username_6**: _"The computer is never going to care"_ And humans will neither when analysing. As a beginner it's tempting to try to set traps to your opponent, but you'll play much better if you have the patience to always assume your opponent sees everything you see and plays the best move.  
  > **username_7**: @username_6 I would agree with that, unless you're so screwed that you require your opponent to make a big mistake.  (Maybe you're down a rook in the middle game).  At that point, it might be better to sacrifice material to set a trap.  
  > **username_8**: @username_7: It is in fact [possible to quantifiably identify and favour traps without sacrificing optimality](https://chess.stackexchange.com/a/29258/9192).  
  > **username_8**: @username_6: See the post I linked above for how one can program a chess AI to favour traps although in a sense still playing optimality. In particular, note the linked follow-up comment in chat [that many current chess engines play badly when they are losing badly because they don't set traps](https://chat.stackexchange.com/transcript/107090?m=54170402#54170402).  
  
  ---
  
  ### Answer by username_2 on 2021-01-24. Score: 2
  
  White can protect the pawn with Nc3, then attack the black Q with Nf3 to gain a tempo in addition to the advantage of the first move.
  
  It is not a blunder but Qh4 by black is a poor move and inferior.
  
  Perhaps is is a totally bad move as it does not show up as played by anybody at any level in chess tempo list of millions of games.
  
  
  ---
  
  ### Answer by username_3 on 2021-01-26. Score: 0
  
  It is not a blunder, who said and what is your reference if it is a blunder, I would like to see the concrete refutation variant.
  
  A blunder is a moving that change evaluation of a position few points that is irreversible.
  Qh4 is not a good move and gives advantage to white but it is not a blunder and not losing move.
  I am not a chess master but my Fide rating is above 2100. I am happy to answer more in details if you want.
  
  In general developing queen soon is not a good idea, because this heavy and expensive piece will get target of opponent’s small pieces while developing. Nc3 and then Nf3 gives good advantage to white...
  
  > **Comments:**
  > **username_0**: Lichess said so (see the link I posted)  
  > **username_3**: OK, first of all, Lichess is an Opensource free software with many people contributing on it, information there is not necessary correct, might be useful but sometimes confusing specially for beginners. I would recommend consult with Master or use proper chess engine. There is paid and free, for example you can buy Fritz or Chessbase to analyze positions and it evaluate for us (based on value of pawns) or you can use Stockfish which available for free and is very strong chess engine too. After Qh4 as I said white get advantage but not wining. So it is not a blunder move.  
  > **username_4**: @username_3 as far as I know, Lichess uses Stockfish as its chess engine.  
  
  ---
  
  