1st solution: Black lives with 3 points
2nd solution: Black lives with 4 points
It's pretty uncommon that once we find a solution to a problem, we keep on searching for better solutions. So this is to remind myself of that fact. Also, I realize that my search for a solution starts from the opposite direction, instead of first checking if closing the border works (which gives better follow up moves), I first try to make eyes from the "inside". This behavior is a pretty common pattern so that's why I wanted to point it out. And now that we're at it, why not remind ourselves the Fundamentals of Life and Death:
Life
- Get more room (widen your eye space).
- Occupy a central eye making point (vital point).
- Reduce the enemy's room (narrow his eye space).
- Occupy a central eye-making point.
Well said. It's always good to try and check for a better solution.
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