Answers.Body: <p>As <strong>Laska</strong> suggested, I was able to find it
  in my 2001 files of correspondence with Richard Stanley:</p>
  <pre><code>[Title &quot;Whoever moves must get mated in 2 moves (NDE 2001)&quot;]
  [FEN &quot;BKQQ4/pPPP4/rbkp4/qrbp4/bp1p4/1p1P4/1P6/8 w - - 0 0&quot;]
  </code></pre>
  <p>I used Black R+R instead of R+P or P+P to keep the position legal.</p>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2024-07-15T03:34:21.310Z
Answers.LastActivityDate: 2024-07-15T03:34:21.310Z
Answers.UserDisplayName: Noam D. Elkies
Body: <p>On page 6 of <a href="https://math.mit.edu/%7Erstan/transparencies/iap.pdf#page=6" rel="nofollow noreferrer">this PDF</a>, it mentions the existence of a legal position such that whoever moves first <strong>must</strong> be checkmated in exactly 2 moves. Can someone please show me this position?</p>
  
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2024-07-15T02:42:52.897Z
Comments.Text: Noam himself passes through here from time to time, so maybe he can supply his original answer to the task
Comments.UserDisplayName: Laska
Tags: <problems><zugzwang>
Title: Zugzwang where the side to move must be mated in exactly 2 moves
ThreadText: # Zugzwang where the side to move must be mated in exactly 2 moves
  
  (Asked by: username_0 on 2024-07-14)
  
  On page 6 of [this PDF](https://math.mit.edu/%7Erstan/transparencies/iap.pdf#page=6), it mentions the existence of a legal position such that whoever moves first **must** be checkmated in exactly 2 moves. Can someone please show me this position?
  
  **Tags:** problems, zugzwang
  
  > **Comments:**
  > **username_1**: username_2 himself passes through here from time to time, so maybe he can supply his original answer to the task  
  
  ---
  
  ## 1 answers
  
  ### Answer by username_2 on 2024-07-15. Score: 31 | Accepted answer
  
  As **username_1** suggested, I was able to find it
  in my 2001 files of correspondence with Richard Stanley:
  
  ```
  [Title "Whoever moves must get mated in 2 moves (NDE 2001)"]
  [FEN "BKQQ4/pPPP4/rbkp4/qrbp4/bp1p4/1p1P4/1P6/8 w - - 0 0"]
  
  ```
  
  I used Black R+R instead of R+P or P+P to keep the position legal.
  
  
  ---
  
  