Couldn't resist the temptation to troll Murat. But seriously,
what would you play on autopilot?

XGID=-----aDBB--AcC-a-cbe--B--A:0:0:1:42:0:0:0:0:10

Score is X:0 O:0. Unlimited Game
+13-14-15-16-17-18------19-20-21-22-23-24-+
| X O O O | | O X |
| X O O | | O X |
| X O | | O |
| | | O |
| | X | O |
| |BAR| |
| | | |
| | | X |
| O | | X |
| O X X | | X |
| O X X X | | X O |
+12-11-10--9--8--7-------6--5--4--3--2--1-+
Pip count X: 173 O: 137 X-O: 0-0
Cube: 1
X to play 42

---
Tim Chow

On Wednesday, November 23, 2022 at 3:30:47 PM UTC, Tim Chow wrote:
> Couldn't resist the temptation to troll Murat. But seriously,
> what would you play on autopilot?
>
> XGID=-----aDBB--AcC-a-cbe--B--A:0:0:1:42:0:0:0:0:10
>
> Score is X:0 O:0. Unlimited Game
> +13-14-15-16-17-18------19-20-21-22-23-24-+
> | X O O O | | O X |
> | X O O | | O X |
> | X O | | O |
> | | | O |
> | | X | O |
> | |BAR| |
> | | | |
> | | | X |
> | O | | X |
> | O X X | | X |
> | O X X X | | X O |
> +12-11-10--9--8--7-------6--5--4--3--2--1-+
> Pip count X: 173 O: 137 X-O: 0-0
> Cube: 1
> X to play 42
>
> ---
> Tim Chow

On autopilot I'd make the 11 point but I'm not on autopilot.
For example, yesterday I watched the new film, The Menu.
While watching the film, I decided to mentally calculate (2x+3) ^ 3.
After I'd found all the coefficients and nailed them down in my memory,
I verified that -1.5 was indeed a zero of the resultant polynomial.

Would somebody watching a film on autopilot do that?
I would say not.
So I would also be unlikely to be on autopilot while making a backgammon play.

Paul

On November 23, 2022 at 8:30:47 AM UTC-7, Tim Chow wrote:

> Couldn't resist the temptation to troll Murat. But
> seriously, what would you play on autopilot?

> XGID=-----aDBB--AcC-a-cbe--B--A:0:0:1:42:0:0:0:0:10
> X to play 42

This is an early position, (when errors don't cost
much yet), that I don't find interesting to discuss
but as you seem to be trying to get me interested,
I'll oblige this time but may ignore future "reptile
brain" threads.

On auto-pilot, I would play "bar/21 13/11". If I took
a second look before picking up the dice, the only
other play I would consider, (but may or may not
make depending on my mood), is "bar/23 11/7".
And I wouldn't care a bit what the bots would say...

MK

On 11/23/2022 10:30 AM, Timothy Chow wrote:
> Couldn't resist the temptation to troll Murat.  But seriously,
> what would you play on autopilot?
>
> XGID=-----aDBB--AcC-a-cbe--B--A:0:0:1:42:0:0:0:0:10
>
> Score is X:0 O:0. Unlimited Game
>  +13-14-15-16-17-18------19-20-21-22-23-24-+
>  | X     O     O  O |   | O        X       |
>  | X           O  O |   | O        X       |
>  | X           O    |   | O                |
>  |                  |   | O                |
>  |                  | X | O                |
>  |                  |BAR|                  |
>  |                  |   |                  |
>  |                  |   | X                |
>  | O                |   | X                |
>  | O           X  X |   | X                |
>  | O  X        X  X |   | X  O             |
>  +12-11-10--9--8--7-------6--5--4--3--2--1-+
> Pip count  X: 173  O: 137 X-O: 0-0
> Cube: 1
> X to play 42

O has no board, so I'd hit loose on the five point. QF says that's
wrong, but auto-pilot or not that's my play here. Behind in the race
and having more checkers back point to bold play, plus O has no board.

--
Ah....Clem
The future is fun, the future is fair.

On 11/23/2022 10:30 AM, Timothy Chow wrote:
> Couldn't resist the temptation to troll Murat.  But seriously,
> what would you play on autopilot?
>
> XGID=-----aDBB--AcC-a-cbe--B--A:0:0:1:42:0:0:0:0:10
>
> Score is X:0 O:0. Unlimited Game
>  +13-14-15-16-17-18------19-20-21-22-23-24-+
>  | X     O     O  O |   | O        X       |
>  | X           O  O |   | O        X       |
>  | X           O    |   | O                |
>  |                  |   | O                |
>  |                  | X | O                |
>  |                  |BAR|                  |
>  |                  |   |                  |
>  |                  |   | X                |
>  | O                |   | X                |
>  | O           X  X |   | X                |
>  | O  X        X  X |   | X  O             |
>  +12-11-10--9--8--7-------6--5--4--3--2--1-+
> Pip count  X: 173  O: 137 X-O: 0-0
> Cube: 1
> X to play 42

Try this again with less autopilot (I thought the roll was 62 for some
reason, which seemed to clearly point to 11/5*)

With a roll of 42, making the eleven point is "obvious" but 7/5* looks
better for the same reasons that 11/5* looked best when I thought the
roll was 62.

--
Ah....Clem
The future is fun, the future is fair.

XGID=-----aDBB--AcC-a-cbe--B--A:0:0:1:42:0:0:0:0:10

Score is X:0 O:0. Unlimited Game
+13-14-15-16-17-18------19-20-21-22-23-24-+
| X O O O | | O X |
| X O O | | O X |
| X O | | O |
| | | O |
| | X | O |
| |BAR| |
| | | |
| | | X |
| O | | X |
| O X X | | X |
| O X X X | | X O |
+12-11-10--9--8--7-------6--5--4--3--2--1-+
Pip count X: 173 O: 137 X-O: 0-0
Cube: 1
X to play 42

Not everyone's "reptile brain" is the same. I know players who
would automatically hit here, and others who would automatically
cover the 11pt. Magriel's criteria suggest a bold play here.
Hitting gains a tempo, interfering with O's ability to make her
4pt or her 5pt on her next roll. If O rolls poorly, X could even
launch an attack, picking up another blot; if O hits back, X has
backgame chances.

1. Rollout¹ Bar/21 7/5* eq:-0.405
Player: 41.82% (G:9.60% B:0.38%)
Opponent: 58.18% (G:20.57% B:0.97%)
Confidence: ±0.020 (-0.425..-0.386) - [100.0%]

2. Rollout¹ Bar/21 13/11 eq:-0.500 (-0.095)
Player: 38.47% (G:7.99% B:0.30%)
Opponent: 61.53% (G:16.25% B:0.71%)
Confidence: ±0.016 (-0.516..-0.485) - [0.0%]

¹ 1296 Games rolled with Variance Reduction.
Dice Seed: 271828
Moves: 3-ply, cube decisions: XG Roller

eXtreme Gammon Version: 2.19.211.pre-release

---
Tim Chow

On Friday, November 25, 2022 at 6:20:11 PM UTC, Tim Chow wrote:
> XGID=-----aDBB--AcC-a-cbe--B--A:0:0:1:42:0:0:0:0:10
>
> Score is X:0 O:0. Unlimited Game
> +13-14-15-16-17-18------19-20-21-22-23-24-+
> | X O O O | | O X |
> | X O O | | O X |
> | X O | | O |
> | | | O |
> | | X | O |
> | |BAR| |
> | | | |
> | | | X |
> | O | | X |
> | O X X | | X |
> | O X X X | | X O |
> +12-11-10--9--8--7-------6--5--4--3--2--1-+
> Pip count X: 173 O: 137 X-O: 0-0
> Cube: 1
> X to play 42
> Not everyone's "reptile brain" is the same.

I think it works like this:
For each species of reptile r, every person has a mapping
that maps their brain to that reptile's brain.

But different people are using different reptiles and thereby generating
different plays.
I used the viviparous lizard.

Paul

On November 26, 2022 at 4:32:52 AM UTC-7, peps...@gmail.com wrote:

> On November 25, 2022 at 6:20:11 PM UTC, Tim Chow wrote:

>> Not everyone's "reptile brain" is the same.

> I think it works like this: For each species
> of reptile r, every person has a mapping
> that maps their brain to that reptile's brain.

While using their reptile brains, what you
call "persons" are themselves a species
of reptile. Thus, no mapping is necessary.

> But different people are using different
> reptiles and thereby generating different
> plays. I used the viviparous lizard.

What a coincidence! I used that one also.

Apparently "not every viviparous lizard's
brain" is the same either... ;) Will you now
map our viviparous lizard's brains to yet
other species/subspecies of creatures? :)

MK

On Saturday, November 26, 2022 at 8:54:47 PM UTC, MK wrote:
....
Will you now
> map our viviparous lizard's brains to yet
> other species/subspecies of creatures? :)

No, I don't have any particular plans to do that.

Paul

On November 27, 2022 at 6:44:22 AM UTC-7, peps...@gmail.com wrote:

> On November 26, 2022 at 8:54:47 PM UTC, MK wrote:
> ...
> Will you now
> > map our viviparous lizard's brains to yet
> > other species/subspecies of creatures? :)

> No, I don't have any particular plans to do that.

My post was to show your illogical application
of mathematics, (as mathematicians or wanna
be mathematicians are constantly tempted to
do with everything, everywhen), by making fun,
(without any malice), of your mathematizing in
mathematese beginning with that trite phrase
"for each something X, every Y..." :)

But I'm glad that you won't repeat it, at least not
regarding reptiles because I personally feel that
I'm totally reptiled out for now... :(

MK