Answers.Body: <p>Very nice puzzle! Looks like the solution is as follows:</p>
  
  <pre><code>[FEN "8/8/6p1/5pP1/5P1K/5PpP/4p2p/2Q2Bkr w - - 0 1"]
  
  1. Qe1 g2 (1... exf1=Q 2. Kxg3 Qxe1#) (1... exf1=R 2. Qxg3#) (1... exf1=N 2. Qf2+ Kxf2 (2... gxf2)) (1... exf1=B 2. Kxg3) 2. Bxe2# 1-0
  </code></pre>
  
  <p>Interestingly, in the different lines, following results are achieved:</p>
  
  <ul>
  <li>White gives a checkmate</li>
  <li>Black gives a checkmate  </li>
  <li>White is stalemated</li>
  <li>Black is stalemated</li>
  </ul>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2016-01-06T16:30:01.503Z
Answers.Text: Yes, four different promotions, leading to four different outcomes of the game. I had never seen anything like it :-)
Answers.UserDisplayName: RemcoGerlich
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2016-01-08T01:06:02.953Z
Answers.Text: Yes, very striking.  Is the Black pawn on g3 needed for soundness?  If not then normally one would remove it; the extra variation 1 . . . g2 2 Bxe2# feels less like a bonus than a distraction from the theme.
Answers.UserDisplayName: Noam D. Elkies
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2016-01-08T08:28:24.313Z
Answers.Text: Well spotted! As far as I can tell, the g3 pawn is not needed...
Answers.UserDisplayName: GloriaVictis
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2016-01-09T13:38:10.567Z
Answers.Text: Thanks, but later I noticed that the pawn can't be removed because without it **Ricky Demer**'s try 1 Qc5+ Kxf1 2 Qf2+ would be a cook.  True, this cook can be eliminated in other ways without adding the 1 . . . g2  variation; but there'd still be a dual in the variation 1 Qe1 exf1=B when White could choose between stalemating (2 Kg3, as in the solution) and being stalemated (2 Qf2+, the dual).  So if the 1 . . . g2 line is a distraction it's an unavoidable one.
Answers.UserDisplayName: Noam D. Elkies
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2016-01-06T15:47:56.410Z
Answers.LastActivityDate: 2016-01-06T15:47:56.410Z
Answers.UserDisplayName: GloriaVictis
Body: <p>I found this hilarious problem and hope people will have fun solving it:</p>
  
  <p>Niels Hoeg, Skakbladet 1907</p>
  
  <pre><code>[FEN "8/8/6p1/5pP1/5P1K/5PpP/4p2p/2Q2Bkr w - - 0 1"]
  </code></pre>
  
  <p>White to end the game in two moves.</p>
  
  <p>In this case, that means that white plays moves so that, no matter what black moves, the game is finished after <em>black's</em> second move at the latest.</p>
  
Comments.ContentLicense: CC BY-SA 3.0
Comments.CreationDate: 2016-01-06T14:21:26.373Z
Comments.Text: We do allow puzzle questions like this, don't we?
Comments.UserDisplayName: RemcoGerlich
Tags: <problems>
Title: White to force the end of the game in two moves
ThreadText: # White to force the end of the game in two moves
  
  (Asked by: username_0 on 2016-01-06)
  
  I found this hilarious problem and hope people will have fun solving it:
  Niels Hoeg, Skakbladet 1907
  [FEN "8/8/6p1/5pP1/5P1K/5PpP/4p2p/2Q2Bkr w - - 0 1"]
  
  White to end the game in two moves.
  In this case, that means that white plays moves so that, no matter what black moves, the game is finished after black's second move at the latest.
  
  **Tags:** problems
  
  > **Comments:**
  > **username_0**: We do allow puzzle questions like this, don't we?  
  
  ---
  
  ## 1 answers
  
  ### Answer by username_1 on 2016-01-06. Score: 13 | Accepted answer
  
  Very nice puzzle! Looks like the solution is as follows:
  [FEN "8/8/6p1/5pP1/5P1K/5PpP/4p2p/2Q2Bkr w - - 0 1"]
  
  1. Qe1 g2 (1... exf1=Q 2. Kxg3 Qxe1#) (1... exf1=R 2. Qxg3#) (1... exf1=N 2. Qf2+ Kxf2 (2... gxf2)) (1... exf1=B 2. Kxg3) 2. Bxe2# 1-0
  
  Interestingly, in the different lines, following results are achieved:
  
  White gives a checkmate
  Black gives a checkmate  
  White is stalemated
  Black is stalemated
  
  > **Comments:**
  > **username_0**: Yes, four different promotions, leading to four different outcomes of the game. I had never seen anything like it :-)  
  > **username_2**: Yes, very striking.  Is the Black pawn on g3 needed for soundness?  If not then normally one would remove it; the extra variation 1 . . . g2 2 Bxe2# feels less like a bonus than a distraction from the theme.  
  > **username_1**: Well spotted! As far as I can tell, the g3 pawn is not needed...  
  > **username_2**: Thanks, but later I noticed that the pawn can't be removed because without it **Ricky Demer**'s try 1 Qc5+ Kxf1 2 Qf2+ would be a cook.  True, this cook can be eliminated in other ways without adding the 1 . . . g2  variation; but there'd still be a dual in the variation 1 Qe1 exf1=B when White could choose between stalemating (2 Kg3, as in the solution) and being stalemated (2 Qf2+, the dual).  So if the 1 . . . g2 line is a distraction it's an unavoidable one.  
  
  ---
  
  