Out of stones

General conversations about Go belong here.
Alguien
Lives in gote
Posts: 628
Joined: Tue Aug 07, 2012 11:50 pm
Rank: KGS 3k
GD Posts: 0
Universal go server handle: Alguien
Has thanked: 44 times
Been thanked: 93 times

Out of stones

Post by Alguien »

This must be a silly question but, what happens in a real game if you spend all your stones? Do you pick some from the captured ones and note them somehow for later counting?
User avatar
quantumf
Lives in sente
Posts: 844
Joined: Tue Apr 20, 2010 11:36 pm
Rank: 3d
GD Posts: 422
KGS: komi
Has thanked: 180 times
Been thanked: 151 times

Re: Out of stones

Post by quantumf »

Most common technique is prisoner swaps - put 10 of my prisoners in your bowl and 10 of your prisoners in my bowl. Often stones run out because of lengthy ko battles, so both players have lots of prisoners.
User avatar
karaklis
Lives in sente
Posts: 797
Joined: Tue Apr 20, 2010 2:14 pm
GD Posts: 600
Has thanked: 93 times
Been thanked: 105 times

Re: Out of stones

Post by karaklis »

Like in real life: exchange of prisoners
User avatar
Loons
Gosei
Posts: 1378
Joined: Tue Apr 20, 2010 4:17 am
GD Posts: 0
Location: wHam!lton, Aotearoa
Has thanked: 253 times
Been thanked: 105 times

Re: Out of stones

Post by Loons »

Using area scoring, prisoners are irrelevant (you'll see many players just throwing prisoners back into bowls with NZ/Chinese rules, which is arguably annoying).
Revisiting Go - Study Journal
My Programming Blog - About the evolution of my go bot.
clemi
Dies in gote
Posts: 66
Joined: Tue Aug 17, 2010 5:38 am
GD Posts: 0
KGS: clemi
Location: Paris
Has thanked: 51 times
Been thanked: 35 times

Re: Out of stones

Post by clemi »

Arguably annoying ? Just to know, what are the cons according to you ?
User avatar
Loons
Gosei
Posts: 1378
Joined: Tue Apr 20, 2010 4:17 am
GD Posts: 0
Location: wHam!lton, Aotearoa
Has thanked: 253 times
Been thanked: 105 times

Re: Out of stones

Post by Loons »

Some people prefer to use Japanese style counting during the game, so you may want to count prisoners.
Revisiting Go - Study Journal
My Programming Blog - About the evolution of my go bot.
Simba
Lives with ko
Posts: 170
Joined: Wed Feb 16, 2011 8:54 am
Rank: 6d KGS
GD Posts: 0
Has thanked: 14 times
Been thanked: 23 times

Re: Out of stones

Post by Simba »

Loons wrote:Some people prefer to use Japanese style counting during the game, so you may want to count prisoners.


Also it's pretty off-putting; as someone who is very used to Japanese counting, it'd really break my concentration for my opponent to put prisoners back in their bowl as a sort of "wha, that's not meant to happen..." just instinctively :) .
User avatar
Joaz Banbeck
Judan
Posts: 5546
Joined: Sun Dec 06, 2009 11:30 am
Rank: 1D AGA
GD Posts: 1512
Kaya handle: Test
Location: Banbeck Vale
Has thanked: 1080 times
Been thanked: 1434 times

Re: Out of stones

Post by Joaz Banbeck »

Just discretely reach into the bowl belonging to the player next to you. :twisted:
( Prior to doing this, you should ascertain that they are the proper color )
Help make L19 more organized. Make an index: https://lifein19x19.com/viewtopic.php?f=14&t=5207
gowan
Gosei
Posts: 1628
Joined: Thu Apr 29, 2010 4:40 am
Rank: senior player
GD Posts: 1000
Has thanked: 546 times
Been thanked: 450 times

Re: Out of stones

Post by gowan »

This isn't a totally trivial matter. Games more than 400 moves long are not out of the question and in such a game it might happen that even exchange of prisoners doesn't do the job. Also, if you are using Ing equipment, borrowing stones from another set might mess up the counting; at the least you'd have to give each player the same number of extra stones.
User avatar
jts
Oza
Posts: 2662
Joined: Sat Sep 18, 2010 4:17 pm
Rank: kgs 6k
GD Posts: 0
Has thanked: 310 times
Been thanked: 632 times

Re: Out of stones

Post by jts »

gowan wrote:This isn't a totally trivial matter. Games more than 400 moves long are not out of the question and in such a game it might happen that even exchange of prisoners doesn't do the job. Also, if you are using Ing equipment, borrowing stones from another set might mess up the counting; at the least you'd have to give each player the same number of extra stones.

I'm not positive this is true. A full set should have 361 stones. At the point where one player runs out of stones completely (all 180 of his stones are on the board), all the remaining dame should be the result of captures.
xed_over
Oza
Posts: 2264
Joined: Mon Apr 19, 2010 11:51 am
Has thanked: 1179 times
Been thanked: 553 times

Re: Out of stones

Post by xed_over »

jts wrote:
gowan wrote:This isn't a totally trivial matter. Games more than 400 moves long are not out of the question and in such a game it might happen that even exchange of prisoners doesn't do the job. Also, if you are using Ing equipment, borrowing stones from another set might mess up the counting; at the least you'd have to give each player the same number of extra stones.

I'm not positive this is true. A full set should have 361 stones. At the point where one player runs out of stones completely (all 180 of his stones are on the board), all the remaining dame should be the result of captures.

today's new math is still hard for some people :)
speedchase
Lives in sente
Posts: 800
Joined: Sun Dec 04, 2011 4:36 pm
Rank: AGA 2kyu
GD Posts: 0
Universal go server handle: speedchase
Has thanked: 139 times
Been thanked: 122 times

Re: Out of stones

Post by speedchase »

jts wrote:I'm not positive this is true. A full set should have 361 stones. At the point where one player runs out of stones completely (all 180 of his stones are on the board), all the remaining dame should be the result of captures.

not true if there is a long ko.
User avatar
Sverre
Lives with ko
Posts: 193
Joined: Thu Apr 22, 2010 1:04 pm
Rank: 2d EGF and KGS
GD Posts: 1005
Universal go server handle: sverre
Location: Trondheim, Norway
Has thanked: 76 times
Been thanked: 29 times

Re: Out of stones

Post by Sverre »

speedchase wrote:not true if there is a long ko.


A long ko where only one of the players is making captures? If both players capture stones then prisoner exchange is possible again.
speedchase
Lives in sente
Posts: 800
Joined: Sun Dec 04, 2011 4:36 pm
Rank: AGA 2kyu
GD Posts: 0
Universal go server handle: speedchase
Has thanked: 139 times
Been thanked: 122 times

Re: Out of stones

Post by speedchase »

Sverre wrote:
A long ko where only one of the players is making captures? If both players capture stones then prisoner exchange is possible again.

good point. what about a snap-back?
User avatar
oren
Oza
Posts: 2777
Joined: Sun Apr 18, 2010 5:54 pm
GD Posts: 0
KGS: oren
Tygem: oren740, orenl
IGS: oren
Wbaduk: oren
Location: Seattle, WA
Has thanked: 251 times
Been thanked: 549 times

Re: Out of stones

Post by oren »

I think if you get to the point where prisoner exchange fails and you started with 181/180 stones, then someone should be resigning...

At the go club, not all the bowls are completely full so borrowing from other bowls when you do run out is common enough.
Post Reply