Answers.Body: <p>There is a performant engine to determine whether positions are dead from one side or both sides. See <a href="https://github.com/miguel-ambrona/deadpos" rel="nofollow noreferrer">deadpos</a>.</p>
  <p>This isn't the same as blocked positions, such as the example given, where the players could break through if they co-operated. However there are some surprisingly tricky positions, often related to tempo, which deadpos correctly classifies.</p>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2024-06-27T07:28:58.640Z
Answers.LastActivityDate: 2024-06-27T10:40:44.837Z
Answers.LastEditDate: 2024-06-27T10:40:44.837Z
Answers.UserDisplayName: Laska
Answers.Body: <p>Stockfish on chesscom can assess it, as well as stockfish on any other GUI. Same with any other modern chess engine such as Komodo, Komodo dragon, lc0... I tested this out on my dads old thinkpad. It assessed it as 0.0. At least in my personal experience it has.</p>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2024-06-25T09:20:06.033Z
Answers.Text: My Stockfish on chess.com is stuck at -2.96 after many minutes, at maximum depth. And I have a Diamond account, so it must be the strongest engine available there.
Answers.UserDisplayName: Alessandro Della Corte
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2024-06-24T21:35:34.187Z
Answers.LastActivityDate: 2024-06-24T21:35:34.187Z
Answers.UserDisplayName: Hugo
Body: <p>Take your typical totally blocked position, like this one:
  <a href="https://i.sstatic.net/gwk2JcUI.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/gwk2JcUI.png" alt="enter image description here" /></a></p>
  <p>Is there an engine today which, on an ordinary laptop, is capable of assessing it as 0.00 in a few seconds?</p>
  <p><strong>Position for testing:</strong></p>
  <p>FEN (White to move):<br />
  k1r2b2/1r6/3p1p2/p1pPpPp1/PpP1P1Pp/1P5P/1R6/2K3B1 w - - 0 1</p>
  <p>FEN (Black to move):<br />
  k1r2b2/1r6/3p1p2/p1pPpPp1/PpP1P1Pp/1P5P/1R6/2K3B1 b - - 0 1</p>
  
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2024-06-27T02:10:22.857Z
Comments.Text: There is a good chance Crystal can - https://www.chessprogramming.org/Crystal. However I have not tried it and so am not writing it as an answer.
Comments.UserDisplayName: Allure
Tags: <engines><evaluation><closed-position>
Title: Engines and blocked positions
ThreadText: # Engines and blocked positions
  
  (Asked by: username_0 on 2024-06-22)
  
  Take your typical totally blocked position, like this one:
  [![enter image description here](https://i.sstatic.net/gwk2JcUI.png)](https://i.sstatic.net/gwk2JcUI.png)
  
  Is there an engine today which, on an ordinary laptop, is capable of assessing it as 0.00 in a few seconds?
  
  **Position for testing:**
  
  FEN (White to move):  
  k1r2b2/1r6/3p1p2/p1pPpPp1/PpP1P1Pp/1P5P/1R6/2K3B1 w - - 0 1
  
  FEN (Black to move):  
  k1r2b2/1r6/3p1p2/p1pPpPp1/PpP1P1Pp/1P5P/1R6/2K3B1 b - - 0 1
  
  **Tags:** engines, evaluation, closed-position
  
  > **Comments:**
  > **username_1**: There is a good chance Crystal can - https://www.chessprogramming.org/Crystal. However I have not tried it and so am not writing it as an answer.  
  
  ---
  
  ## 2 answers
  
  ### Answer by username_2 on 2024-06-27. Score: 1
  
  There is a performant engine to determine whether positions are dead from one side or both sides. See [deadpos](https://github.com/miguel-ambrona/deadpos).
  
  This isn't the same as blocked positions, such as the example given, where the players could break through if they co-operated. However there are some surprisingly tricky positions, often related to tempo, which deadpos correctly classifies.
  
  
  ---
  
  ### Answer by username_3 on 2024-06-24. Score: 0
  
  Stockfish on chesscom can assess it, as well as stockfish on any other GUI. Same with any other modern chess engine such as Komodo, Komodo dragon, lc0... I tested this out on my dads old thinkpad. It assessed it as 0.0. At least in my personal experience it has.
  
  > **Comments:**
  > **username_0**: My Stockfish on chess.com is stuck at -2.96 after many minutes, at maximum depth. And I have a Diamond account, so it must be the strongest engine available there.  
  
  ---
  
  