The all-in-one democratic game

Unless you ask me to not put a suggestion in the poll, it has full right to be there.
And polls results are surprising sometimes too.

Whatever i think most important is to exchange ideas in the first place.

White D18 wins the poll!
Time to suggest the next black move.

demo here

2 Likes

Positional judgment polls

Who has more territories ?
  • Black
  • White
  • Equality

0 voters

Who has more influence ?
  • Black
  • White
  • Equality

0 voters

Who will win ?
  • Black
  • White
  • It’s fair

0 voters

Territories = sure points (including komi)
Influence = future opportunities for development

Time for the B8 ko?

Or to be safe with B7 reduction?

2 Likes

On a whim, I clicked the OGS Score Estimator and it says Black by 1.9, which tells me it’s a pretty close game. It’s interesting that SE is currently calling the lower left side for White, when to me it still feels up in the air…

Also - I’m wondering if now is a good time for Black to put the pressure on White’s lower right with O7 / P7 etc - not even necessarilly to kill that group, but to force it live in gote and expand the lower moyo into the middle before White drives down with something like J9 or Q10, etc

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What’s the policy on AI here?

Anyway, if the score estimator says something is dead, it means that it’s predicting that it will end up dead given perfect play. That could just be because it’s eventually not going to be worth saving, even if it’s still unresolved at this point.

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Well, the policy is to use AI only when the game will be finished among us, for a review then.

The question arose when @gennan told us he wanted to step aside and asked us if we were interested at that time in a AI review.

i think we had an agreement on that even before.

So please Let’s keep it like this even if it could be very tempting.

4 Likes

Is C17 useful? It’s sente but maybe not urgent, since White won’t hurry to play there.

On the lower left, I can see Black playing at C6 or B6 or B7 or B8. We already worked out B8. It’s ko. And not very appealing to me because B7 resolves simply and looks good enough. B6 and C6 haven’t been worked out yet but look equally interesting.

And F12 still looks good for Black because it’s forcing, and unlike C17, White really can justify playing there very soon, since it slashes the aji within White’s area of influence, and White just moved for the most area possible with D18.

Not sure which of these to endorse yet.

3 Likes

The lower left side looks rather urgent for Black if the 3 stones can be saved. What was the variation for B7?

I investigated C6, B6, pressing down from above, and trying to connect under (while cuttong off the White stones) with B5. Couldn’t see any way to save the Black stones by starting with those moves. But I don’t trust my own analysis.

1 Like

The B7 variation was a reduction (in sente) by mark5000:

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We (mostly you and claire) have worked out the sequence that leads to the ko, but we haven’t worked out how the ko would resolve. I guess white would win it (because white has a few local ko threats and losing the ko would be too painful for white), but what could black gain in exchange? A living group inside white’s top moyo or the whole lower right? To me that seems bigger than the B7 reduction.

So: What about the ko threats?

Edit: Size of the ko

Comparing the following two positions, I’d say the ko has roughly a value of 85 points.

3 Likes

Note that the exchange C18 D18 did change the solidity of black UL group which is now unaffected by most of white moves on the left side.

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For B6, If white answer with B5 (or B3), I think it’s the same as B8


If white answer with B7 or C7, I don’t think B7 work, but C7 though, it is a different story (if black wants, it can always revert back to the ko, but there are other choices)

2 Likes

Put a Variation to try avoid the ko in the demo

I don’t think white should and can, it’s a split up of the white group, if one of them get killed, the other either just die, or has to resort to even more difficult ko or semeai to escape (or live way smaller than it used to and probably in gote)

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A yes F9 is a problem. Not working, thx.

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If @mark5000’s B7 variation works out like that, white may play 6 at D6 to increase the cutting aji at the marked points:


But black may be able to strengthen the center (in sente?) with @claire_yang’s variation (moves 7-16 in the diagram), gaining momentum to continue with an attack on the lower right.

That combination would be a continuation that I’m dreaming of with black (though I’m not sure if it’s realistic).

5 Likes

To 12 seems working

1 Like

Unless any more suggestion, I will collect and build the poll in a few hours