Answers.Body: <p>You can use the <a href="https://rebrickable.com/sets/compare/slow/" rel="nofollow noreferrer">Compare Sets</a> function on <a href="https://rebrickable.com/" rel="nofollow noreferrer">Rebrickable</a> for that (if the B model is an official model or a MOC on Rebrickable).</p>
  
  <p>Here an <a href="https://rebrickable.com/sets/compare/slow/?1-set=42069-1&amp;1-inv=19190&amp;1-user_list=&amp;2-set=42069-1-b1&amp;2-inv=24927&amp;2-user_list=" rel="nofollow noreferrer">example for both official models from the 42069 set</a>.</p>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2018-08-02T13:13:06.790Z
Answers.LastActivityDate: 2018-08-02T13:13:06.790Z
Answers.UserDisplayName: Raidri
Body: <p>I have a collection of LEGO sets, from which only the B model is assembled and the remaining pieces have been lost.</p>
  
  <p>What is the easiest way to figure out which pieces are missing from these sets?</p>
  
Tags: <storage><organisation><alternate-model>
Title: How to check the missing pieces of a given set?
UserDisplayName: BalazsToth
ThreadText: # How to check the missing pieces of a given set?
  
  (Asked by: username_0 on 2018-08-02)
  
  I have a collection of LEGO sets, from which only the B model is assembled and the remaining pieces have been lost.
  
  What is the easiest way to figure out which pieces are missing from these sets?
  
  **Tags:** storage, organisation, alternate-model
  
  ---
  
  ## 1 answers
  
  ### Answer by username_1 on 2018-08-02. Score: 4 | Accepted answer
  
  You can use the [Compare Sets](https://rebrickable.com/sets/compare/slow/) function on [Rebrickable](https://rebrickable.com/) for that (if the B model is an official model or a MOC on Rebrickable).
  
  Here an [example for both official models from the 42069 set](https://rebrickable.com/sets/compare/slow/?1-set=42069-1&1-inv=19190&1-user_list=&2-set=42069-1-b1&2-inv=24927&2-user_list=).
  
  
  ---
  
  