https://www.sudopedia.org/index.php?action=history&feed=atom&title=Naked_Pair 2026-04-29T03:14:24Z Revision history for this page on the wiki MediaWiki 1.34.1 https://www.sudopedia.org/index.php?title=Naked_Pair&diff=190&oldid=prev 2020-06-03T19:16:24Z

<p>Created page with &quot;A &#039;&#039;&#039;Naked Pair&#039;&#039;&#039; is a <a href="/wiki/Naked_Subset" title="Naked Subset">Naked Subset</a> of size 2. It is formed by 2 <a href="/wiki/Cell" title="Cell">cells</a> that have <a href="/wiki/Candidate" title="Candidate">candidates</a> for only 2 <a href="/wiki/Digit" title="Digit">digits</a> and are collocated in the same <a href="/wiki/House" title="House">house</a>. == H...&quot;</p> <p><b>New page</b></p><div>A '''Naked Pair''' is a [[Naked Subset]] of size 2.<br /> <br /> It is formed by 2 [[cell]]s that have [[candidate]]s for only 2 [[digit]]s and are collocated in the same [[house]].<br /> <br /> == How it works ==<br /> [[Image:NakedPairs.png]]<br /> <br /> Pay attention to the [[cell]]s '''r1c7''' and '''r3c7''' (highlighted in yellow) in the 7th [[column]], which only have the two [[digit]]s 5 and 6 as [[candidate]]s. Therefore, the digits 5 and 6 must go into these two cells. This means that 5 and 6 can be eliminated in the remaining cells in the 7th column, so '''r6c7&lt;&gt;5''' and '''r7c7&lt;&gt;6'''.<br /> <br /> Incidentally, the '''r1c7''' and '''r3c7''' are also collocated in the same [[box]], which is the 3rd one. Using the same logic leads to '''r1c9&lt;&gt;5''', '''r1c9&lt;&gt;6''' and '''r3c8&lt;&gt;6'''.<br /> <br /> == See also ==<br /> * [[Hidden Pair]]<br /> * [[Naked Triple]]<br /> * [[Naked Quad]]<br /> <br /> [[Category:Solving Techniques]]</div>

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