Answers.Body: <p>This is given by <a href="https://en.chessbase.com/post/endgame-blog-karsten-mueller-999e" rel="noreferrer">Karsten Muller for Chessbase</a>.</p>
  
  <p><a href="https://i.sstatic.net/usYJ4.png" rel="noreferrer"><img src="https://i.sstatic.net/usYJ4.png" alt="enter image description here"></a></p>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2019-02-24T10:41:40.963Z
Answers.LastActivityDate: 2019-02-24T10:41:40.963Z
Answers.UserDisplayName: Allure
Answers.Body: <p>There are actually <em>two</em> zones, depending on which side of the pawn the black king is. If it's already in the corner, the zone is small:</p>
  
  <p><a href="https://i.sstatic.net/Wj4aT.png" rel="noreferrer"><img src="https://i.sstatic.net/Wj4aT.png" alt="enter image description here"></a></p>
  
  <p>If the black king on the other side (towards the center), the zone is larger. The white queen can force the king to stand in front of the pawn, giving the white king an extra tempo to reach the 'small' zone above. (This also applies if the king is in front of the pawn already.)</p>
  
  <p><a href="https://i.sstatic.net/OVVcr.png" rel="noreferrer"><img src="https://i.sstatic.net/OVVcr.png" alt="enter image description here"></a></p>
  
  <p><sub>(diagrams from Fundamental Chess Endings by Müller and Lamprecht)</sub></p>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2019-02-24T13:21:51.287Z
Answers.LastActivityDate: 2019-02-24T13:21:51.287Z
Answers.UserDisplayName: Glorfindel
Body: <p>In a Queen vs Pawn endgame where the pawn is a Rook pawn on the 7th rank, it is a draw unless the King is inside the winning box, as shown here:</p>
  <p><a href="https://i.sstatic.net/2UZCJ.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/2UZCJ.jpg" alt="enter image description here" /></a></p>
  <p>My question is what is that winning box if the pawn is a Bishop pawn? Though I do know that the Queen needs to be on h2 or d2 against an f pawn, and on a2 or e2 against a c pawn. (Comparing to the whole 2nd rank if it was a Rook pawn).</p>
  
Tags: <endgame><queen-endgame>
Title: What's the winning box for the King in a Queen against 7th rank Bishop-pawn endgame?
ThreadText: # What's the winning box for the King in a Queen against 7th rank Bishop-pawn endgame?
  
  (Asked by: username_0 on 2019-02-24)
  
  In a Queen vs Pawn endgame where the pawn is a Rook pawn on the 7th rank, it is a draw unless the King is inside the winning box, as shown here:
  
  [![enter image description here](https://i.sstatic.net/2UZCJ.jpg)](https://i.sstatic.net/2UZCJ.jpg)
  
  My question is what is that winning box if the pawn is a Bishop pawn? Though I do know that the Queen needs to be on h2 or d2 against an f pawn, and on a2 or e2 against a c pawn. (Comparing to the whole 2nd rank if it was a Rook pawn).
  
  **Tags:** endgame, queen-endgame
  
  
  ---
  
  ## 2 answers
  
  ### Answer by username_2 on 2019-02-24. Score: 10 | Accepted answer
  
  There are actually *two* zones, depending on which side of the pawn the black king is. If it's already in the corner, the zone is small:
  
  [![enter image description here](https://i.sstatic.net/Wj4aT.png)](https://i.sstatic.net/Wj4aT.png)
  
  If the black king on the other side (towards the center), the zone is larger. The white queen can force the king to stand in front of the pawn, giving the white king an extra tempo to reach the 'small' zone above. (This also applies if the king is in front of the pawn already.)
  
  [![enter image description here](https://i.sstatic.net/OVVcr.png)](https://i.sstatic.net/OVVcr.png)
  
  (diagrams from Fundamental Chess Endings by Müller and Lamprecht)
  
  
  ---
  
  ### Answer by username_1 on 2019-02-24. Score: 5
  
  This is given by [Karsten Muller for Chessbase](https://en.chessbase.com/post/endgame-blog-karsten-mueller-999e).
  
  [![enter image description here](https://i.sstatic.net/usYJ4.png)](https://i.sstatic.net/usYJ4.png)
  
  
  ---
  
  