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how to play 66

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badgolferman

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May 11, 2012, 11:31:29 AM5/11/12
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GNU Backgammon Position ID: zwwAANjuYQAwAA
Match ID : UQn7AAAAAAAE
+13-14-15-16-17-18------19-20-21-22-23-24-+ O: gnubg
| | | O O X O | OO 0 points
| | | O O X O | OO
| | | O | O
| | | O | O
| | | | O
v| |BAR| | 7 point match
| | | |
| | | X |
| | | X X |
| X | | X X X X | Rolled 66
| X | | X X X X | 0 points
+12-11-10--9--8--7-------6--5--4--3--2--1-+ X: badgolferman (Cube:
2)

Would you leave one back or take both out?

Bradley K. Sherman

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May 11, 2012, 11:39:41 AM5/11/12
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badgolferman <REMOVETHISb...@gmail.com> wrote:
> +13-14-15-16-17-18------19-20-21-22-23-24-+ O: gnubg
> | | | O O X O | OO 0 points
> | | | O O X O | OO
> | | | O | O
> | | | O | O
> | | | | O
>v| |BAR| | 7 point match
> | | | |
> | | | X |
> | | | X X |
> | X | | X X X X | Rolled 66
> | X | | X X X X | 0 points
> +12-11-10--9--8--7-------6--5--4--3--2--1-+ X: badgolferman (Cube:
>2)


23/5, 10/4.

--bks

badgolferman

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May 11, 2012, 12:09:25 PM5/11/12
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Okay, lets say you play that and gnubg doubles next turn. What now?

Bradley K. Sherman

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May 11, 2012, 12:19:21 PM5/11/12
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badgolferman <REMOVETHISb...@gmail.com> wrote:
>Bradley K. Sherman wrote:
>>badgolferman <REMOVETHISb...@gmail.com> wrote:
>>> +13-14-15-16-17-18------19-20-21-22-23-24-+ O: gnubg
>>> | | | O O X O | OO 0 points
>>> | | | O O X O | OO
>>> | | | O | O
>>> | | | O | O
>>> | | | | O
>>>v| |BAR| | 7 point match
>>> | | | |
>>> | | | X |
>>> | | | X X |
>>> | X | | X X X X | Rolled 66
>>> | X | | X X X X | 0 points
>>> +12-11-10--9--8--7-------6--5--4--3--2--1-+ X: badgolferman
>>>(Cube: 2)
>>
>>23/5, 10/4.
>
>Okay, lets say you play that and gnubg doubles next turn. What now?

Drop.

--bks

Stick

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May 11, 2012, 12:27:17 PM5/11/12
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Since X already owns the cube in your diagram I would be flustered to
say the least if GNU doubled again. There is no way the bot would be
doubling here anyway, it's clearly too good.

Stick

On May 11, 12:09 pm, "badgolferman" <REMOVETHISbadgolfer...@gmail.com>
wrote:
> Bradley K. Sherman wrote:

Paul

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May 11, 2012, 6:08:06 PM5/11/12
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On May 11, 4:31 pm, "badgolferman" <REMOVETHISbadgolfer...@gmail.com>
wrote:
Taking both out isn't even worth considering. Since X can leave one
back while barely harming the race, taking both out simply needlessly
throws away X's hitting chances for no gain whatsoever.
X must leave one back. There are two plays that leave one back, and
they probably don't differ in equity by very much.

The Bradley manoeuvre wastes a pip less than the other candidate
play. It's a tight gammon race so saving a pip is quite a significant
consideration.

23/5 10/4

Paul Epstein
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