Samsung 2012 game 4
Apparently this is a well known opening pattern and Gu is interested to know Lee's reply. Lee quits the aforementioned opening at . In the other game, White (Gu Li) played at immediately.
The game unfolds quite differently, with White still taking influence against Black's territory, but Black is much lower here while White's influence is not working for him.
When splits White's forces, White seems in trouble already. It also isn't clear what good the - exchange has brought forth.
With the corner stones are split off and from this point onwards a long, drawn out struggle starts, evolving about these stones, whether they should be saved or sacrificed on a grand scale.
... until decides to sacrifice on a grand scale and build a huge moyo at the bottom as a compensation. One can sense that White does grudgingly so.
looks like terrible aji keshi but Gu Li must have judged that the bottom was not possible to invade anyhow and increasing liberties here would prove vital to the centre stones. Black maintains the initiative with . White decides to fight back with and .
A ko fight arises but Black seems to have thought through matters.
ignores White's threat at and a ko exchange takes place, Black becoming very strong in the centre, in exchange for giving up the upper left corner. The sente that invariably results from winning a ko, is used to further reduce Whit's bottom and expand the lower left corner. is very big indeed.
Especially since Black has up his sleeve. This endgame sente is another hidden gain from the ko fight: White did not get this corner for free and must answer. However, White launches a counter at in an attempt to turn the tables.
And White seems to succeed! While Black has to play the almost neutral connection of , White splits Blacks seemingly untouchable forces in the lower left. Apparently was an overplay or badly timed.
Or maybe not ... Black finds a way to keep the pressure on. He then abandons the lower left to revive the upper left with and , leaving either of his groups at the bottom killable but not both: a and b are miai. Or is there more to it ... ?
Brilliancy! Black starts bullying the White group that originally killed the corner. The hunter becomes game.
Sheer brilliancy! -- set up a shortage of liberties so that not only saves one of Black's groups but moreover forces White to capture the black corner stones, starting with ! The miai savings have turned into a masterplan.
Black wins by 5,5 points.
I (Dieter) would surely like to see professional analysis of this fantastic game.