Share your games with 6+ groups

Hehe next exercice for beginners in view, to practice seki. Surely you get more groups if a group is a alived connected chain of stones. If’s like two groups for the prize of one, although a seki takes a bit more place to work.
So here on 9x9

That’s 10 groups.

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image

31 groups can live without seki on 19x19.

image

132 groups, for a given definition of the term, can live in seki on 19x19.

https://senseis.xmp.net/?MaximumNumberOfLiveGroups

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Still 13x13, @Atorrante ?

Quite a nice design both (3 more groups with 49 stones to use only…, and the way to make Sekis with as less stones as possible)

No thanks, I pass.

Perfect for wallpaper for …

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Why black has a group with 2 eyes and white doesn’t?

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Why not?

Ah, perhaps I should have said using seki, if the living group is also being counted.

Linguistic point.

daal’s six-group win, 2017, L19

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I have to admit, reading that discussion I’m not sure I understand group tax… maybe I’m overthinking it

Group tax is an artifact of the stone scoring rules, which were probably the original rules of Go, later emulated by area and territory scoring.

In area scoring, your points are your area (ie. including the walls).
In territory scoring, your points are you territory (in. what is within the walls) plus the prisoners you’ve captured.

In stone scoring, though, your score is the maximum number of stones that you could theoretically place on the board.

It was considered that a player could not add so many stones in the “theoretical post-game placement” that they would fill in their own eyes, since that would kill their group.

Thus, every group required two moku for its eyes, which were spots where a stone could not be placed and thus a point couldn’t be scored. As such, a “group tax” of two points per group emerged from this premise.

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That makes sense but maybe what I don’t understand is why group tax was abandoned? I didn’t follow the explanation in the link …

In Japan, stone scoring was replaced by territory scoring.
In China, it was replaced by area scoring.

Without stone scoring there’s no emergence of group tax.

If your question is why stone scoring was abandoned, I’d suggest that in China it was the effect of contact with the Japanese in the early 20th century, and the move away from the cross-hoshi fixed opening.

Why, and even when, the Japanese adopted territory scoring is something probably lost to time.

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stone scoring is fill all empty spaces until you can’t play self atari, right? I assumed the answer was just laziness

possibly off topic for this thread but related to group tax, I found this interesting post while searching around

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I imagine the actual placement of all those stones was always only implicit.

2 stone handicap game against CrazyStone iPad 6k (played during a long work call, shh)

check out the seki in lower left, could count as 6.5 groups? :joy:

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You mean 5.5 perhaps?

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image

Very aggressive opponent trying to follow big kill strategy, so I was sort of forced to live with many groups.

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OGS Honinbo 2008 (Main Class), Round 3 Group 1 is a game I won with 7 separately alive groups. I actually won that game in endgame, which is unusual for the player with many groups as generally the opponent will get to bully them into small life whilst making nice yose. Shows the importance of yose.

Btw, how are people posting board images: is it simply taking a screenshot, cropping and then uploading image, or is there a more direct way?

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One trick is to do the following, replacing the number after /games/ with the game id, eg for your linked game

<img src="https://online-go.com/api/v1/games/177455/png?.png" width="381" height="381">

produces

and then if you want to make it clickable like Gennan, with anchor tags

<a href="https://online-go.com/game/177455"><img src="https://online-go.com/api/v1/games/177455/png?.png" width="381" height="381"></a>

I suppose screenshotting with cmd+shift+4 on Mac or Windows+shift+S on windows 10 lets you draw and capture part of the screen either.

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