Life In 19x19

ez4u wrote:... If there is indeed no attack left at the top then B43 must have been a mistake...

I was thinking much the same myself. It goes further, I think. It is not just B43, but B41 and B39 also. Black chose the direction of the large scale attack with 39. If the attack was no good, then maybe 39 should have been at O9.
Maybe the problem goes further back.

( FWIW, I think moves 1 and 3 were probably tolerable. )

shapenaji wrote:L18 was also a huge mistake, K18 was correct. I lost at least 15 points there

Of course, if you hadn't given up K14, the issue of how to cover your retreat around K18 would have never arisen.

With the addition of what illuck said, there's aji that lets black descend at t8 later threatening the corner and also threatening whites r10 group (if white decides to settle r10 that is)

I still prefer my move than the game move, but that's just me.

Looking through the game again, Eizero's suggestion is becoming more attractive XD

I probably should develop my feeling for thick/calm moves like that.

Still, I think the game move was probably fine as well.