In the opening, Zen as usual traded a lot of *cash*(territory) for *a
cheque*(the big center). Though this style is far from the current
mainstream of the human Go world, it is, however, in accordance with Zen's
fighting-oriented playing-style and strategies. Some moves are
questionable: N4(72) could be better at P6 or O5, to completely *seal* the
breach. O13 instead of G15(74) could consolidate the B's weakness around
P6. The 4 stones advantage was completely cancelled when the W group lived
in the center since that means Zen's previous efforts were all invalidated.
So I think Zen's problem was mainly in the side of game-flow: abandoned
territory for the big center, but failed to secure the center.

On the contrary, CS secured a lot of territory from the opening. This
territory-oriented strategy simplified the game and made the game-flow more
stable.

Aja

2013/3/20 "Ingo Althöfer" <[email protected]>

> Thanks Petr, for the comments.
>
> > Zen has lost after fighting hard
> > and ending with a large white group in its moyo that had miai
> > for life that Zen's simulations likely didn't understand; if they did,
> > it seemed like black had some advantage and would have good chances.
>
> I looked through Zen's game with the analysis tool of CrazyStone.
> Looking at the histograms (how many random playouts won at which margin)
> I found some interesting structures:
>
> * At move 110 it looked like normally distributed.
> * At move 120 the development of a "right" shoulder started.
> * After 147 for the first time a side maximum occured (around score +79.5)
> * In the final position, after move 221, crazy shadows were
> fully developed.
>
> It seems that the mailing list does not allowed png attachments.
> Therefore you have to go to
> http://www.dgob.de/yabbse/index.php?topic=4956.0
> to see diagrams from CrazyAnalysis.
>
> Question to stronger go players: Where do you think started
> Zen's problems?
>
> Cheers, Ingo.
>
> http://www.althofer.de/crazy-shadows.html
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>
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