The Mystery of 19×19

Continued from previous post

Gu Li 9p is one of the strongest pro in China, and Yamashida Keigo 9p is the current Kisei of Japan. Both players are top pros in the world. Gu Li 9p is white in this game.

Black 11 is an interesting choice. Normally one would play at A or B.

Both Lee 9p and Cho 9p are legendary pro players. However, recently Lee Chang Hao 9p scored 3 wins in a row against Cho 9p in world tournaments.

Note: I don’t currently intend to provide detailed commentary here because it is difficult to capture so many snapshots. However, I probably can provide a download-able sgf file with some variations. If you would like to see that please leave a comment.
New moves are being invented everyday. For example, white 14 is a very contemporary [...]

(continued from part 3)

White 100 is the strongest counter move to black 99. However, after
B 101 and 103, white has to find a way to escape the middle group or he
would resign. Aiming at both A and B, white played 108, a move that was
overlooked by black and all pro observers.

(continued from part 2)

Black started attacking at 63. B65 and 73 are both vital moves to take away White’s eyespaces. After black 81, most observers were shocked because it was pretty obvious that white’s group had nowhere to escape.

continue from the previous post…

From the first round of the KGS Suk B Choi tournament, http://www.gokgs.com/help/sukbchoi.html.Between Oysy 9d (B) and Cornel 7d (W).

After Black 17, White has to choose between A,B, and C.
Playing at A is solid but might be a little too conservative because Black will be able to build a nice shape as well. B and [...]

I recently found a very intriguing game in the 6th World Ing Cup, round 3,
between Kong Jie 7p, China (B) vs. Lee Sedol 9p, Korea (W).