2in2x2

https://scrapbox.io/files/61d45910bd1842001e6fa2e8.png

機能

(2,2)、(3,3+)

https://scrapbox.io/files/61d5a6332f89800023c4eb76.png

辺での確定マス

https://scrapbox.io/files/61f54f9cc1dd14001f184bb7.png