Let me try to show what I mean by a sufficiently detailed course (with an eye to effortful study). Bear in mind that I am guessing here about what might be effective.

In terms of training, non-problem books have a problem, it seems to me, with effortful study, because they have diagrams with variations. Not that they should not have such diagrams, but it can be too easy just to read through the variations without the optimal amount of effort. So here is my guess about how diagrams might be used in a book to induce effort on the part of the reader. (GoGOD's GoScorer software is good in this regard, when studying pro games. Go ebooks may be an improvement, as well.

) BTW, Mr. K's web site (
http://mrkigo.sakura.ne.jp/ksikatuindex.html ) has an excellent introduction to life and death, because he is so thorough.
Here is a set of diagrams aimed at novices in life and death. Life in go is not a simple concept, as the discussions on SL indicate. Here I try to get across a prototypical concept. (The text is not as complete as what would be in a book.

)
- Click Here To Show Diagram Code
[go]$$ Dead or alive?
$$ -------------------
$$ | . O . O X O O . O |
$$ | O O O O X O O O O |
$$ | X X X X X X X X X |
$$ | . . . , . . . . . |[/go]
In all these diagrams we assume that the Black stones surrounding the White groups are alive and cannot be captured. One of the two White groups in this diagram is alive, and one is dead. Which is which? Why do you think so?
- Click Here To Show Diagram Code
[go]$$B Capture
$$ -------------------
$$ | . O . O X O O 1 O |
$$ | O O O O X O O O O |
$$ | X X X X X X X X X |
$$ | . . . , . . . . . |[/go]

can capture the White group on the right. Do you see why Black cannot capture the group on the left?
- Click Here To Show Diagram Code
[go]$$ Dead or alive?
$$ -------------------
$$ | . . O O X O O X . |
$$ | O O O O X O O O O |
$$ | X X X X X X X X X |
$$ | . . . , . . . . . |[/go]
In this diagram the Black stone in the corner can be captured. What is the status of each White group? Alive or dead? Or does it depend on who has the move?
- Click Here To Show Diagram Code
[go]$$ Dead or alive?
$$ -------------------
$$ | X X . O X O . X . |
$$ | O O O O X O O O O |
$$ | X X X X X X X X X |
$$ | . . . , . . . . . |[/go]
How about these groups?
- Click Here To Show Diagram Code
[go]$$ Dead or alive?
$$ -------------------
$$ | . . . O X X . O . |
$$ | O O O O X O O O O |
$$ | X X X X X X X X X |
$$ | . . . , . . . . . |[/go]
How about these?
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Over the board, I might set up a position and ask the student to kill or capture the White group. During play, positions such as these would arise. By asking status questions, I am implicitly asking for vicarious play, which is the basis of life and death. But I show only one variation, relying upon the imagination and effort of the reader instead of showing others. (Whether this is a good idea or not is another question.

)