This game seems unusually dull for these players with yose starting around move 80. Was black's lower right corner too big and he just made a simple game to keep the advantage? m15 ended up looking silly with n14; seems something went wrong there.

Just reviewed the sgf of Game 4 - was anyone else surprised by move 82? I know the proverb "urgent before big" but this seemed quite slow. Unless he thought he was winning and just wanted to wrap the game up, but seems too early for that.

Move 8 was suspect for me. It begged to get under pressure by a pincer and thus to give Black a chance to fight and to build up influence or territory or to abandon later for sente. A split would have kept Black flat overall while making some base and points.

Can someone explain to me? What does that move accomplish?

For me the game is already over by move 27. Black is connected all over, with good territorial prospects and White's thickness is nullified at the bottom. Next, 28 is uninspired and 29 is the most natural move. By 75 the overconcentration of white stones at the bottom right is painful. Who am I to judge, of course, but it looks like Lee was in bad shape.

It is a clever way of capturing P7.

To follow up on this a little bit since I spent a while mulling over the same question. forces black to defend himself by pushing from behind with and , which gives white the chance to atari p7. That forces black to choose between saving the R7/8 stones or the p7 stone which is obviously no choice at all.

I also wondered why black didn't simply connect at R6 for , but white would still be able to capture with a ladder and since the descent/cut at R8 would be sente and very big, black would probably want to play there anyway so the connection would have been a wasted move

Knotwilg, Bill, but do you think white is already ahead by move 81? If so, what went wrong? Is it that F14 and F12 are significantly worse than D14 and D12?