Answers.Body: <p>According to Chess.com's <a href="https://support.chess.com/article/2016-how-do-puzzle-ratings-work" rel="nofollow noreferrer">How do Puzzle ratings work?</a> you can get +1 point for getting <em><strong>pending puzzles</strong></em> incorrect as they have not yet received an established rating.</p>
  <blockquote>
  <p>&quot;About 5% of the puzzles you run into will be new puzzles that have
  not yet been rated. You will never lose points for getting one of
  these Pending puzzles wrong!&quot;</p>
  </blockquote>
  <p>As for how they calculate the Puzzle ratings, these are similar to the playing ratings with a few key differences:</p>
  <ul>
  <li><strong>Correctly solving a puzzle always increases your puzzle rating</strong> whereas a win against a much lower rated player may not increase your rating. Solving the lowest rated puzzle will at least give you 1 point.</li>
  <li>A new puzzle receives a rating based on the puzzle ratings of those able to solve it. However, after a set amount of time the rating is locked and will not change. Chess.com does have a means to correct the locked rating up or down if needed.</li>
  </ul>
  <p>For puzzles with multiple moves, there is a &quot;partial credit&quot; scoring system where you can till receive a net increase in puzzle rating for getting a few moves right even if you missed some at the end of the sequence.</p>
  <p><a href="https://i.sstatic.net/eb52c.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/eb52c.png" alt="Chess.com image with annotation showing a puzzle is pending." /></a></p>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2023-11-10T23:37:42.720Z
Answers.Text: What if I get 2/3 moves correct? I sometimes gain rating on rated puzzles. (For getting them wrong.)
Answers.UserDisplayName: MrChessR
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2023-11-11T14:56:11.090Z
Answers.Text: @MrChessR Updated answer to include this point.
Answers.UserDisplayName: SecretAgentMan
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2023-11-10T13:02:55.947Z
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Answers.LastEditDate: 2023-11-11T14:55:44.607Z
Answers.UserDisplayName: SecretAgentMan
Body: <p>How does chess.com calculate puzzle rating? I am curious because today, I managed to gain rating while incorrectly solving a puzzle. Could someone help me out? (Also on puzzles that are already rated, not just pending)</p>
  
Tags: <rating><puzzles><chess.com>
Title: How does Chess.com calculate puzzle rating?
ThreadText: # How does Chess.com calculate puzzle rating?
  
  (Asked by: username_0 on 2023-11-10)
  
  How does chess.com calculate puzzle rating? I am curious because today, I managed to gain rating while incorrectly solving a puzzle. Could someone help me out? (Also on puzzles that are already rated, not just pending)
  
  **Tags:** rating, puzzles, chess.com
  
  
  ---
  
  ## 1 answers
  
  ### Answer by username_1 on 2023-11-10. Score: 3 | Accepted answer
  
  According to Chess.com's [How do Puzzle ratings work?](https://support.chess.com/article/2016-how-do-puzzle-ratings-work) you can get +1 point for getting ***pending puzzles*** incorrect as they have not yet received an established rating.
  
  > "About 5% of the puzzles you run into will be new puzzles that have
  > not yet been rated. You will never lose points for getting one of
  > these Pending puzzles wrong!"
  
  As for how they calculate the Puzzle ratings, these are similar to the playing ratings with a few key differences:
  
  * **Correctly solving a puzzle always increases your puzzle rating** whereas a win against a much lower rated player may not increase your rating. Solving the lowest rated puzzle will at least give you 1 point.
  * A new puzzle receives a rating based on the puzzle ratings of those able to solve it. However, after a set amount of time the rating is locked and will not change. Chess.com does have a means to correct the locked rating up or down if needed.
  
  For puzzles with multiple moves, there is a "partial credit" scoring system where you can till receive a net increase in puzzle rating for getting a few moves right even if you missed some at the end of the sequence.
  
  [![Chess.com image with annotation showing a puzzle is pending.](https://i.sstatic.net/eb52c.png)](https://i.sstatic.net/eb52c.png)
  
  > **Comments:**
  > **username_0**: What if I get 2/3 moves correct? I sometimes gain rating on rated puzzles. (For getting them wrong.)  
  > **username_1**: @username_0 Updated answer to include this point.  
  
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