XGID=bBBBBBB--------AbbcccB----:1:1:1:00:0:4:3:0:10
X:Daniel O:eXtremeGammon
Score is X:0 O:4. Unlimited Game, Jacoby Beaver
+13-14-15-16-17-18------19-20-21-22-23-24-+
| X O O O | | O O X |
| O O O | | O O X |
| O | | O O |
| | | |
| | | |
| |BAR| |
| | O | |
| | O | |
| | | | +---+
| | | X X X X X X | | 2 |
| | | X X X X X X | +---+
+12-11-10--9--8--7-------6--5--4--3--2--1-+
Pip count X: 99 O: 138 X-O: 0-4
Cube: 2, X own cube
X on roll, cube action
On 4/22/2022 5:53 PM, peps...@gmail.com wrote:
XGID=bBBBBBB--------AbbcccB----:1:1:1:00:0:4:3:0:10
X:Daniel O:eXtremeGammon
Score is X:0 O:4. Unlimited Game, Jacoby Beaver +13-14-15-16-17-18------19-20-21-22-23-24-+There are a lot of positions that look similar to this one, but
| X O O O | | O O X |
| O O O | | O O X |
| O | | O O |
| | | |
| | | |
| |BAR| |
| | O | |
| | O | |
| | | | +---+
| | | X X X X X X | | 2 |
| | | X X X X X X | +---+
+12-11-10--9--8--7-------6--5--4--3--2--1-+
Pip count X: 99 O: 138 X-O: 0-4
Cube: 2, X own cube
X on roll, cube action
small changes can make a big difference to the evaluation, so I
would hesitate to call this position "standard."
It looks like D/P to me. If X rolls an immediate 6 then clearly
O's position is a massive drop and possibly TG for X. But what
if X doesn't roll a 6? It will typically take X a couple of rolls
to start crunching his board, and even then O might not enter for
a while. All this gives X extra time to roll a 6, and once he
rolls a 6, he has more time to roll another 6. And even if things
turn around, O has work to do. She has only a two-point board,
and X will generally still have a reasonably strong board even if
he has started to crunch. If O hits loose and X hits back, then
X can quickly regain the upper hand. Given that X wins a lot of
gammons from this position, I don't think O can take.
On the other hand, it also doesn't look TG to me. If X doesn't
roll an immediate 6 then it might no longer be a pass.
Can you be a bit more specific about which rolls you see as market gainers?
MCG had a GammonVillage article or two about these types of closeout-v-fiveprime positions. As I recall, he focused on
positions with 1 checker back and 1 checker closed out, so one
would have to be cautious about making inferences about positions
like this one with 2 checkers back and 2 checkers closed out
On 4/23/2022 4:46 PM, I wrote:
MCG had a GammonVillage article or two about these types of closeout-v-fiveprime positions. As I recall, he focused onI just went to the GammonVillage website to re-read MCG's article.
positions with 1 checker back and 1 checker closed out, so one
would have to be cautious about making inferences about positions
like this one with 2 checkers back and 2 checkers closed out
However, I couldn't find it. I don't know if the website has just
been reorganized, or if the online magazine has been discontinued.
Luckily, I saved a copy of MCG's article, so you can read it here
(not formatted very well, but legible):
http://alum.mit.edu/www/tchow/cg/mcg10.pdf
I guess GammonVillage owns the copyright to this article, so if they complain, I'll take it down. But in the meantime, I see that I
failed to remember that MCG considered almost exactly your position
in the article. If you scroll to the very end of the article, you'll
see what I mean.
On 4/23/2022 4:46 PM, I wrote:
MCG had a GammonVillage article or two about these types of closeout-v-fiveprime positions. As I recall, he focused onI just went to the GammonVillage website to re-read MCG's article.
positions with 1 checker back and 1 checker closed out, so one
would have to be cautious about making inferences about positions
like this one with 2 checkers back and 2 checkers closed out
However, I couldn't find it. I don't know if the website has just
been reorganized, or if the online magazine has been discontinued.
Luckily, I saved a copy of MCG's article, so you can read it here
(not formatted very well, but legible):
http://alum.mit.edu/www/tchow/cg/mcg10.pdf
I guess GammonVillage owns the copyright to this article, so if they complain, I'll take it down. But in the meantime, I see that I
failed to remember that MCG considered almost exactly your position
in the article. If you scroll to the very end of the article, you'll
see what I mean.
I just went to the GammonVillage website to re-read MCG's article.
However, I couldn't find it. I don't know if the website has just
been reorganized, or if the online magazine has been discontinued.
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