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  Ando Meritee's Blog
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My old analysis of i3 opening 2008-02-09 15:59:13
These days I have not spent time for analysing renju openings, so I should encourage myself to review the theory and interesting new developments.
I remember, 14 years ago I proved the sure win the variant below:
alt="Your browser does not have Java installed. Please go to www.java.com and press Download Free Java."
But my analysis was too focused on this 10th move. In later tournaments, some other 10th moves appeared, too. For example my game with Mr Yamaguchi in WC 2003.

Anyway, I will try to recall my memory of the main 10th move first. Let me see...
alt="Your browser does not have Java installed. Please go to www.java.com and press Download Free Java."
On the diagram above, white cannot defend actively from k10 now, because black would then still have a VCF threat. The further variants from this 25th move are not so important, an average player can find it during the tournament just by thinking.

I like the 19th move, it has so many clever purposes. Just like the one below.
alt="Your browser does not have Java installed. Please go to www.java.com and press Download Free Java."
alt="Your browser does not have Java installed. Please go to www.java.com and press Download Free Java."
Because of the 19th move, white 26 on the diagram above is forced to weaker side.
alt="Your browser does not have Java installed. Please go to www.java.com and press Download Free Java."
It turns out that white did not gain much from the three on 18th move, so white perhaps would like to try the defense without using the three. See below.
alt="Your browser does not have Java installed. Please go to www.java.com and press Download Free Java."
On the diagram above, if 24 up then black can connect with m6.
Whereas 20-L11 would be too passive, allowing black to develop gently with j9, aiming to connect upper and lower wings over the left side and utilize the space of left side for making the winning base. As long as white does not have any VCT threats, black does not need to try hard to seek for VCT either - soft and slow moves are fine, too.
Now, white will try one more variant of 18th move, as below:
alt="Your browser does not have Java installed. Please go to www.java.com and press Download Free Java."
The diagrams above showed the main ideas of black attack in case of the 12-L8.

The following several diagrams will focus on the 12-i8 (middle).
alt="Your browser does not have Java installed. Please go to www.java.com and press Download Free Java."
alt="Your browser does not have Java installed. Please go to www.java.com and press Download Free Java."
The move 20 on the diagram above - one of the two main variants. The 23rd move is increasing black power before making final attack on the left side.
alt="Your browser does not have Java installed. Please go to www.java.com and press Download Free Java."
As you see on the diagram above, playing a white four on 20th move does not help at all, because the beautiful 23rd move forces white to defend at h6, after which black can easily win in upper left side.
Below, the variant of lower 20th move is discussed. Move 21 keeps black VCF threat, therefore using black k5 is not urgent.
alt="Your browser does not have Java installed. Please go to www.java.com and press Download Free Java."
I will continue writing my review sometime later... :)

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