Editing En passant (section)

==Draw by repetition and stalemate==
In the context of [[Threefold repetition|threefold and fivefold repetition]], two positions are considered different if the opportunity to perform a given ''en passant'' capture exists in one position but not the other.<ref name="Schiller">{{Citation
|last=Schiller|first=Eric|author-link=Eric Schiller
|year=2003
|title=Official Rules of Chess
|edition=2nd
|publisher=Cardoza
|isbn= 978-1-58042-092-1 }}
</ref>{{rp|27}}

When a player is not in check, and capturing ''en passant'' is the only legal move, the player may not claim a draw by [[stalemate]]. In his book on chess organization and rules, [[Arbiter (chess)#International Arbiter|International Arbiter]] [[Kenneth Harkness]] wrote that people frequently asked if this is the case.<ref name="Harkness">{{citation
 | last=Harkness|first=Kenneth|author-link=Kenneth Harkness
 | title=Official Chess Handbook
 | year=1967
 | publisher=McKay
 | isbn= 1-114-15703-1}}
</ref>{{rp|49}} Chess players debated this point in the 19th century, with some arguing that the right to capture ''en&nbsp;passant'' is a "privilege" that one cannot be compelled to exercise. In his 1860 book ''Chess Praxis'', [[Howard Staunton]] wrote that the ''en passant'' capture is mandatory in such a position; the [[rules of chess]] were amended to make this clear.<ref name="Winter">{{cite web
| last=Winter
| first=Edward
| author-link=Edward Winter (chess historian)
| year=1999
| url=http://www.chesshistory.com/winter/extra/stalemate.html
| title=Stalemate
| website=Chesshistory.com
| access-date=2009-06-12
| archive-date=2019-12-17
| archive-url=https://web.archive.org/web/20191217032457/http://www.chesshistory.com/winter/extra/stalemate.html
| url-status=live
}}</ref><ref name="Harkness" />{{rp|49}}