I would like to learn more about semeai and be able to quickly learn about how to handle the most common situations (determine quickly whether a group is alive, dead, or undetermined).
Now, there is the simple idea that counting liberties works in simple cases.
Then there is the idea that eyes generally require more attack moves that their number of liberties (along with pre-calculated values that are easy to remember), which is a special case of having to count approach moves.
That said, I am still at a stage where I have to mostly read the sequence in my mind and keep track of outside liberties, shared liberties, eye liberties, etc., which is slow and error-prone.
I have not yet looked further in details yet: what would be the fastest way of learning useful information applicable to most semeais encountered in real games?
What would you suggest is the most efficient way of getting practical semeai tools that cover most common situations?
PS: The pages at Sensei's Library give a quick overview that lacks details or even sometimes basic definitions, so they are not a good starting point.