Regarding the relation between Takao's 21st Century Dictionary of Basic Joseki with the previous edition (Ishida's Dictionary of Basic Joseki) Kiseido writes,
"Although [Ishida's dictionary] has now been superceded by Takao Shinji's dictionary, it does not render Ishida's dictionary useless. One of the features of Ishida's work is the numerous references to professional games in which many of the josekis listed were used, a feature that does not exist in Takao's compilation."
Yes, and, Ishida's edition also diagrams the fuseki where the joseki are used, gives further analysis of the joseki in the context of the those games, and gives further variations of the joseki relevant to the choice and use of the joseki in those games. Hopefully a reviewer of the Takao edition will comment on the relation between the two editions.
http://www.kiseido.com/Dictionary.htmCardiffGo wrote:I cannot believe that a 6 kyu can see the material aimed only at kyu players - show me some 1 dan and 2 dan players who know even 20% of just the joseki (rather than also the near-joseki the book also offers) in the book, and I will be suitably amazed. There are about 250 ** (fully fledged) joseki in the book. Many would look far too scary for most kyu players to even think about playing.
Thank you for your interest in my post. I will do my best to give you what little data I have at me fingertips to support my opinion. After 47 years of playing Go, it is difficult to say exactly how you came to know the things you know, and one can always be mistaken.
The 1k KGS player "emerus" seems to know a lot of joseki. Emerus is the coach for the 1-5k players in the KGS room called "The Study Room". I go to him with my joseki questions and have been extremely impressed with the breadth of his knowledge. The Study Room manager, revtaro, tells me that emerus knows over 350 joseki. I'll bet it is a lot more than that. (I am talking about "fully fledged" joseki here. And, I am not counting the variations you have to know to really know the joseki.)
It seems to me that most of the serious 1k+ players on KGS make extensive use of the game data bases (like gobase.com) to study joseki. There are also more advanced and more complete joseki dictionaries than the Ishida/Takao dictionary that stand between the Ishida/Takao dictionary and the study of joseki through the study of their use in pro games. It seems logical to me that the importance of the Ishida/Takao dictionary to the study of joseki would diminish once one is in the KGS dan level.
Like the title says these are "Basic Joseki". Yes, some, though my no means most, are a little scary to play in my games. But, they are easy to understand when working through them in the book, so, I play them every chance I get. So far, this has both helped me make progress in the ranking system, and it has helped me win games.
I knew most of the joseki in the Ishida edition when I was 1d AGA in 1991. Most of the joseki in the Takao edition come straight out of the Ishida edition (at least, that is my current impression). This means that I used to know most of the joseki in the Takao edition. And, the 1d players on KGS today are a lot stronger than the 1d AGA players in 1991.
I now am relearning the joseki that I used to know. I have had to re-learn a lot of things after my brain injury in 2003. After my brain injury, I dropped from 1d to 10k.
Even back in 1991, most of the American 3d+ players that I knew had exhausted their study of the Ishida dictionary and were mining the Japanese Go journals to continue their study of joseki.
http://senseis.xmp.net/?DeaconJohn