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	<id>https://petalcrashers.net/mediawiki/index.php?action=history&amp;feed=atom&amp;title=Double_diagonal</id>
	<title>Double diagonal - Revision history</title>
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	<updated>2026-04-09T01:49:28Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>https://petalcrashers.net/mediawiki/index.php?title=Double_diagonal&amp;diff=222&amp;oldid=prev</id>
		<title>Zircean: Created page with &quot;{{Infobox chain | petalboard = &lt;petalboard width=&quot;2&quot; height=&quot;3&quot; size=&quot;small&quot; infobox&gt;r,;y,r;,y&lt;/petalboard&gt; | type = Proto-chain }}  The '''double diagonal''' is a proto-chain...&quot;</title>
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		<updated>2021-03-16T03:29:40Z</updated>

		<summary type="html">&lt;p&gt;Created page with &amp;quot;{{Infobox chain | petalboard = &amp;lt;petalboard width=&amp;quot;2&amp;quot; height=&amp;quot;3&amp;quot; size=&amp;quot;small&amp;quot; infobox&amp;gt;r,;y,r;,y&amp;lt;/petalboard&amp;gt; | type = Proto-chain }}  The &amp;#039;&amp;#039;&amp;#039;double diagonal&amp;#039;&amp;#039;&amp;#039; is a proto-chain...&amp;quot;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;{{Infobox chain&lt;br /&gt;
| petalboard = &amp;lt;petalboard width=&amp;quot;2&amp;quot; height=&amp;quot;3&amp;quot; size=&amp;quot;small&amp;quot; infobox&amp;gt;r,;y,r;,y&amp;lt;/petalboard&amp;gt;&lt;br /&gt;
| type = Proto-chain&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
The '''double diagonal''' is a proto-chain pattern that is notable for the fact that it frequently appears naturally due to the nature of spawner randomization, and that it can be converted into either a [[corner chain]] or [[sandwich]] in two moves if proper bracing is already present. Given the initial board state in the diagram at the top, the following chain patterns are reachable:&lt;br /&gt;
&lt;br /&gt;
{| class=&amp;quot;wikitable&amp;quot;&lt;br /&gt;
! Conversion type !! Resulting board state&lt;br /&gt;
|-&lt;br /&gt;
| Unfold₁ || &amp;lt;petalboard width=&amp;quot;2&amp;quot; height=&amp;quot;3&amp;quot; size=&amp;quot;small&amp;quot;&amp;gt;r,r;,y;,y&amp;lt;/petalboard&amp;gt;&lt;br /&gt;
|-&lt;br /&gt;
| Unfold₂ || &amp;lt;petalboard width=&amp;quot;2&amp;quot; height=&amp;quot;3&amp;quot; size=&amp;quot;small&amp;quot;&amp;gt;r,;r,;y,y&amp;lt;/petalboard&amp;gt;&lt;br /&gt;
|-&lt;br /&gt;
| Collapse || &amp;lt;petalboard width=&amp;quot;2&amp;quot; height=&amp;quot;3&amp;quot; size=&amp;quot;small&amp;quot;&amp;gt;r,r;y,y;,&amp;lt;/petalboard&amp;gt;&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
An example of unfolding a double diagonal can be found [https://youtu.be/aeh0zKnhDHA?t=19 here] ''(content warning: potentially NSFW language)'' on the left edge of the board. There is a double diagonal formed by reds on top of yellows, and the yellow on the left is moved down to make room for the red to be pushed to the left. This quickly adds two links to the chain going around the left and top edges of the board.&lt;br /&gt;
&lt;br /&gt;
[[Category:Chain methods]]&lt;/div&gt;</summary>
		<author><name>Zircean</name></author>
		
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