Answers.Body: <p>The following are minimum involving various pieces:</p>
  
  <p>King + Queen<br>
  King + Rook + Any Piece<br>
  King + 2 Bishop<br>
  King + 2 Knight</p>
  
  <p>This is only the theoretical minimum to actually mate. Whether or not it is possible to force a mate in this situation is a different question. You can see these mates by placing both kings in a corner, one on board 1, and the other on board 3.</p>
  
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Answers.CreationDate: 2015-02-09T23:01:39.360Z
Answers.LastActivityDate: 2015-02-10T11:20:13.480Z
Answers.LastEditDate: 2015-02-10T11:20:13.480Z
Answers.UserDisplayName: Teofrostus
Answers.Body: <p>Here is the following pieces you can do checkmate with: </p>
  
  <p>King + Queen
  King + Rook
  King + 2 Bishops
  King + 2 Knights
  King + Knight + Bishop</p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2015-02-11T23:19:20.340Z
Answers.Text: Those are the minimal material combinations needed to force mate in standard chess, but are you sure each of them suffices to mate in the particular 3d chess variant asked about in the question?
Answers.UserDisplayName: ETD
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Answers.Text: I'm not really sure what 3D chess is, but I you have "levels", @ETD
Answers.UserDisplayName: Nuach
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Answers.CreationDate: 2015-02-11T15:10:25.923Z
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Answers.UserDisplayName: Nuach
Body: <p>Assuming the rules of <a href="http://www.oocities.org/william_dagostino/millennium_3d_chess.pdf" rel="nofollow">millennium 3d chess</a>, what are the minimum required pieces for checkmate?</p>
  
  <p>I realize this is an extremely difficult question, but in regular (2-dimensional) chess, we have rules of thumb for when two players should draw during the endgame.</p>
  
  <p>A few examples of these kinds of scenarios (in 3d chess) would be much appreciated. </p>
  
Comments.ContentLicense: CC BY-SA 3.0
Comments.CreationDate: 2015-01-23T20:21:54.763Z
Comments.Text: @RauanSagit - I just played with my friend for a few times, and we were stuck in a close endgame for about an hour... that's what prompted the question! The rules are in the question's `millennium 3d chess` link.
Comments.UserDisplayName: brettimus
Tags: <chess-variants><checkmate><stalemate>
Title: What are the minimum required pieces for checkmate in 3d chess?
ThreadText: # What are the minimum required pieces for checkmate in 3d chess?
  
  (Asked by: username_0 on 2014-12-30)
  
  Assuming the rules of [millennium 3d chess](http://www.oocities.org/william_dagostino/millennium_3d_chess.pdf), what are the minimum required pieces for checkmate?
  
  I realize this is an extremely difficult question, but in regular (2-dimensional) chess, we have rules of thumb for when two players should draw during the endgame.
  
  A few examples of these kinds of scenarios (in 3d chess) would be much appreciated.
  
  **Tags:** chess-variants, checkmate, stalemate
  
  > **Comments:**
  > **username_0**: @RauanSagit - I just played with my friend for a few times, and we were stuck in a close endgame for about an hour... that's what prompted the question! The rules are in the question's `millennium 3d chess` link.  
  
  ---
  
  ## 2 answers
  
  ### Answer by username_1 on 2015-02-09. Score: 3 | Accepted answer
  
  The following are minimum involving various pieces:
  
  King + Queen  
  King + Rook + Any Piece  
  King + 2 Bishop  
  King + 2 Knight
  
  This is only the theoretical minimum to actually mate. Whether or not it is possible to force a mate in this situation is a different question. You can see these mates by placing both kings in a corner, one on board 1, and the other on board 3.
  
  
  ---
  
  ### Answer by username_2 on 2015-02-11. Score: -3
  
  Here is the following pieces you can do checkmate with:
  
  King + Queen
  King + Rook
  King + 2 Bishops
  King + 2 Knights
  King + Knight + Bishop
  
  > **Comments:**
  > **username_3**: Those are the minimal material combinations needed to force mate in standard chess, but are you sure each of them suffices to mate in the particular 3d chess variant asked about in the question?  
  > **username_2**: I'm not really sure what 3D chess is, but I you have "levels", @username_3  
  
  ---
  
  