user26906: As far as I can tell, the position is the same after move 1, after move 3, and after move 5, so why does the game last until move 6 is done? Did it not get claimed as a draw by either player?
[fen "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1"]
[Event "Magnus Carlsen Invitational"]
[Site "chess24.com INT"]
[Date "2021.03.15"]
[EventDate "2021.03.13"]
[Round "15.3"]
[Result "1/2-1/2"]
[White "Magnus Carlsen"]
[Black "Hikaru Nakamura"]
[ECO "C20"]
[WhiteElo "2847"]
[BlackElo "2736"]
[PlyCount "12"]

1. e4 e5 2. Ke2 Ke7 3. Ke1 Ke8 4. Ke2 Ke7 5. Ke1 Ke8 6. Ke2
Ke7 1/2-1/2


user33007: While the position might seem like it has been reached 3 times at that point, that is actually only the second time they have reached that position because the first time they were in this position, before the kings had moved, they had the ability to castle. So the position has only occurred twice where they can't castle as of move 5, and it has only had the exact same position twice in a row. They then needed to play it one more time so that they have had the same position three times where they haven't had the ability to castle.

26906: <p>As far as I can tell, the position is the same after move 1, after move 3, and after move 5, so why does the game last until move 6 is done? Did it not get claimed as a draw by either player?</p>
<pre><code>[fen &quot;rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1&quot;]
[Event &quot;Magnus Carlsen Invitational&quot;]
[Site &quot;chess24.com INT&quot;]
[Date &quot;2021.03.15&quot;]
[EventDate &quot;2021.03.13&quot;]
[Round &quot;15.3&quot;]
[Result &quot;1/2-1/2&quot;]
[White &quot;Magnus Carlsen&quot;]
[Black &quot;Hikaru Nakamura&quot;]
[ECO &quot;C20&quot;]
[WhiteElo &quot;2847&quot;]
[BlackElo &quot;2736&quot;]
[PlyCount &quot;12&quot;]

1. e4 e5 2. Ke2 Ke7 3. Ke1 Ke8 4. Ke2 Ke7 5. Ke1 Ke8 6. Ke2
Ke7 1/2-1/2
</code></pre>
 33007: <p>While the position might seem like it has been reached 3 times at that point, that is actually only the second time they have reached that position because the first time they were in this position, before the kings had moved, they had the ability to castle. So the position has only occurred twice where they can't castle as of move 5, and it has only had the exact same position twice in a row. They then needed to play it one more time so that they have had the same position three times where they haven't had the ability to castle.</p>
