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Problem 3832
Counting Points, Instruction Required, Amateur Game, Corner based

I observed this situation in a 9x9 amateur game. The game was completed except for this corner, the white stones were unconditionally alife. Black could win the game because he squeezed the last points out of this corner group. Can you do the same? There is also an interesting 1-point seki hidden in the variations, and if black has a huge ko threat (> 29 points), then he can pressure white into a ko fight that is even better than the solution you are supposed to find (in this case, the stone A by white would have been a mistake).

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