Giant Kozaky

Variations about this second-line cut in the corner. Including a very hidden move that blew my mind when I saw it. Seriously, click this if you didn’t see the variation on WeiqiTV.

mg1

The shape in question can happen in various ways. E.g. White could resist to Black’s peep. Then Black can push-cut at c5.


mg2

Or White played the keima earlier at d6. To Black’s tsuke-koshi, White cannot block at d5 for whatever reason, but clamps at 2.


mg3

So when Black cuts inside, White decides to connect at 4 instead of capturing at 5, either because Black cuts b6 and pulls out b7, or because White cannot resist to Black’s hane e6, making the initial resistence meaningless.



mg4

White can try a semeai in the corner. Note that Black’s exchange of c3+d2 for White’s d4+e5 turtle is mostly not profitable.

Who wins the semeai?



mg4a

When Black starts taking liberties, White can win by 1 liberty thanks to the cut at 12. Even so, we rarely see White resisting the initial peep like this:

After capturing 3 stones, White’s corner actually became smaller than before (shrunk from 15 to 8 points) and Black fortifies his position in sente. The stone at d6 must be really important in order to outweigh these losses.

Now, this is nothing new for dan players. This was also shown in a game review in a WeiqiTV video. Meng Tailing 6p mentioned these variations in his commentary of the game against Gu Li 9p. Below you can see the whole board. The cut was not played in the game, but he did put detailed variations. Brace yourself for what comes next.

mg5

 



mg6

Black can start taking a different liberty. When White cuts, Black can kosumi once and make a tetris.



mg7

Of course, it is assumed that Black has 1 (one) mega-kothreat somewhere on the board in order to initiate this. That means, when White extends at 22, Black is able to win the ko in the corner.

mg8

Actually White can capture Black’s tetris unconditionally. But later on, White is locally dead.

Isn’t this amazing?!

It seems that the reason why Black did not play this sequence is White’s resistance hanetsugi 8 and 10, in the screenshot below. And then the sequence somehow works for White.mg9

Source: WeiqiTV

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s