l/d problems

Just blogging this to remember which l/d problems to check out in Stonebase:

"Nice to study l/d problems. There have some good stuff about yose and l/d problems in StoneBase which named 中外古谱 -> 中国古谱 -> 官子谱. It's very useful because almost all the stuffs come from the real game. In fact i almost don't do other l/d problems except this one. It was writed in 17th by GuoBailin."

Today, I am studying attack and defense, and haengma. I guess should do l/d later too.