Lee Sedol - Gu Li Jubango, game 2

  Difficulty: Advanced   Keywords: Game commentary

This is the second game in the ten game match between Lee Sedol and Gu Li, played in February 2014. As usual, the opening went well for Gu. Lee succeeded with two invasions and reversed the game. Then a ko, one of Gu's favourite instruments, leveled the game back again. In the early endgame, Gu was ahead but due to successive mistakes under time pressure in the late endgame, Lee pulled off a 1,5 point win.

References

Opening

[Diagram]
Moves 1 to 10  

W4 is a very active start. It was speculated that Lee played so actively because he could take a 2-0 lead now. B5 ignores and takes another corner. W8 is kind of forced because both corners have this as an ideal extension. B9 switches back to a common corner pattern.

[Diagram]
Moves 11 to 20  

Chinese commentators thought that up to B1 things were running smoothly for Black. On the contrary, W2 is a negative move, breaking up Black's side. Then B3 to ...

[Diagram]
Moves 21 to 30  

... W2 are the most common of 4-4 point joseki. B3 could also be played one line higher. B7 was applauded by the commentators as a move typical of Gu Li's intuition. It makes miai of B9 and sliding under at a. So when Lee defended at W8, B9 occupied a natural point.

[Diagram]
Moves 31 to 40  

W2 is a probe, which answered this way leaves aji at the bottom. If answered below, then there would be aji in the centre. W4 builds up a wide upper right and B5 naturally invades, which more or less marks the end of the opening and the start of the middle game.

We are observing a very different game than game one, where the players plunged into the middle game very early and many different unstable groups spread across the board. This game here has a more old fashioned flavour, both players carefully staking out potential territory and reinforcing.


Middle game

[Diagram]
Moves 41 to 50  

Gu Li's style is almost too peaceful

[Diagram]
Moves 51 to 60  

B5 was questioned (allow hane at the head). W10 forces ...

[Diagram]
Moves 61 to 70  

... this connection at B1 and White continues to live easily at the bottom. Black had been targeting B5 here for some time, cutting of the left side.

[Diagram]
Moves 71 to 80  

However, Lee again managed to live easily at the left. Black's play seems to lack some power in this game.

[Diagram]
Moves 81 to 90  
[Diagram]
Moves 91 to 100  
[Diagram]
Moves 101 to 110 (8 at 2)  

W2 chooses the difficult road of a ko. According to the professional commentators, at this point Lee could have kept the game simple.

[Diagram]
Moves 111 to 120 (7 at 1) (10 at 4)  
[Diagram]
Moves 121 to 130  

W4 is not very big as a ko threat. With B5, Black becomes very thick. According to the pros, this thickness should give him the advantage in the endgame.

With W10, all big groups are stable. There is some open area left at the top but it is not big so we can arguably state that the endgame has begun.


Endgame

[Diagram]
Moves 131 to 140  
[Diagram]
Moves 141 to 150  
[Diagram]
Moves 151 to 160  
[Diagram]
Moves 161 to 170  
[Diagram]
Moves 171 to 180  
[Diagram]
Moves 181 to 190  
[Diagram]
Moves 191 to 200  
[Diagram]
Moves 201 to 210  
[Diagram]
Moves 211 to 220  
[Diagram]
Moves 221 to 230  
[Diagram]
Moves 231 to 240  
[Diagram]
Moves 241 to 250  
[Diagram]
Moves 251 to 260  
[Diagram]
Moves 261 to 270  
[Diagram]
Moves 271 to 280  
[Diagram]
Moves 281 to 287  

Lee Sedol - Gu Li Jubango, game 2 last edited by Dieter on March 1, 2014 - 15:15
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