Gokyo Shumyo, Section 1, Problem 16 / Solution
If White continues to destroy Black's eyeshape, she runs out of breath after Black 7. Black will have to connect at a later, but still his eyespace is almost filled with a straight four shape, giving life.
After , Black only has one eye around . And a and b are miai for White to prevent the second eye.
As above, makes miai of a and b to destroy the second eye.
After 4, a and b are miai for killing the corner.
Black will eventually have to connect at a and b, leaving his eye almost filled with three stones, so he dies.
White 4 makes miai of 5 and 6. White 6 makes miai of a and b.
Black 1 here obviously makes only ko, and ko is not good enough.
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