8in6x6<8in5x5A
#構造
https://scrapbox.io/files/61f53775da0281001f6e6f9f.png
pzv
構成
8in6x6
8in5x5A
x4
共有構造
{2x2}
{3x3}
{4x4}
{5x5}
{6x6}
{7x7}
{8x8}
{9x9}
{10x10}