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.