Rob133700: I don't think P3 actually results in ko though?
If black responds with Q3, we play Q2, yes, but if black doesn't immediately respond with R5, then P2 kills the group. If black does respond with R5, black is still dead:
W-P3, B-Q2, W-Q2, B-R5, W-P2, B-S5, W-S6, B-T5, W-T6, now its a capture race that white whould win outright
jhubert: I disagree with your comment.
P3 is not the good answer. It is kô.
I disagree with your comment. P3 is not the good answer. It is kô.