ななめ45°(ピン)
http://www6.plala.or.jp/gene/tamori/review/075.htm#07104
http://www6.plala.or.jp/gene/tamori/review/075.htm#07103
http://www6.plala.or.jp/gene/tamori/review/071.htm#0714
http://www6.plala.or.jp/gene/tamori/review/075.htm#07104
http://www6.plala.or.jp/gene/tamori/review/075.htm#07103
http://www6.plala.or.jp/gene/tamori/review/071.htm#0714