Professional Games
The 15th Gahgrin Cup Female Kuksu, Quarter final
2010. 1. 5
White: Lee Hajin 3P Black: Cho Hyeyeon 8P
Black won by resignation
B7 is a trendy move. It used to be played at (L,17) instead.
W18 is dynamic choice. The other option is to play at (S,3) and black would answer at (L,3), then (R,7), (R,8), (S,8), (S,9), (S,7). This is an old joseki.
B19 is necessary, because otherwise white would be able to connect by (R,8) and cut.
From B21 to W28 is a natural sequence.
B29 is appropriate direction. If black keeps playing in the center, black's upper right corner gets hurt.
B41 is good place to take the initiative of the game. White should have played at (L,10) instead of W40.
W44 is a territory oriented move, but gives black thickness.
W50 is inevitable because black has many ko threats in the right side.
Up to W56, the game is well balanced.
W58 was too smooth. White should have played more strongly.
B59, 61 are good tesujis for tabaki in this situation.
With B65, 67, black took care of it in sente.
B69, 75 are agreeable sentes.
By B79, black is ahead now.
W82, 84 are do or die moves.
Because white successfully reduced black's potential in the center, the game got close, but still a little favorable for black.
White should have played at W14 before playing at W4. Then if black plays at B15, white would play at either (K,15) or (K,16).
In the actual game, black's territory from the upper right corner became too big.
Although White made some profits at the end game, it was not enough to reverse the game.
Good game, thank you for reviewing it. It would be interesting if Cho Hyeyeon also post a review on her blog - that would give us a unique insight of what the players thought as the game evolved. Let's hope she'll do this.
Have a great weekend!