I never understand this

I never understand what is the best play and why. Any ideas?

is Player 2 score: 0 pip: 34

Money session Jacoby Beaver

pip: 134 score: 0 is Player 1

XGID=--BBBBC------------c-BcBg-:1:1:1:32:0:0:3:0:10

to play 32

1.	Rollout1	21/16	eq: -0.683
	Player: Opponent: 33.66% (G:0.00% B:0.00%) 66.34% (G:47.82% B:0.37%) Conf: ± 0.008 (-0.691...-0.675) Duration: 58.8 seconds
2.	Rollout1	23/20 6/4	eq: -0.741 (-0.059)
	Player: Opponent: 33.61% (G:0.00% B:0.00%) 66.39% (G:53.07% B:0.21%) Conf: ± 0.007 (-0.748...-0.734) Duration: 53.0 seconds
3.	XG Roller+	21/18 6/4	eq: -0.728 (-0.046)
	Player: Opponent: 32.18% (G:0.00% B:0.00%) 67.82% (G:48.81% B:0.62%)
1 Truncated at 11 moves using 3 ply. 655 Games rolled with Variance Reduction. Dice Seed: 44 Moves and cube decisions: 3 ply

eXtreme Gammon Version: 1.21

Last problem of "100 backgammon puzzles" by Paul Lamford 3

Even 4ply rollout doesn't understand proper cube action here. XG 4ply will take bad cube in later stage so that he states it is too good now.

is Player 2 score: 0 pip: 60

Money session Jacoby Beaver

pip: 330 score: 0 is Player 1

XGID=-------------------eEeEeE-:0:0:-1:00:0:0:3:0:10

on roll, cube action?

Analyzed in Rollout
No Double
Player Winning Chances:	75.60% (G: 54.91% B: 26.59%)
Opponent Winning Chances:	24.40% (G: 0.01% B: 0.00%)
Double/Take
Player Winning Chances:	72.41% (G: 60.97% B: 26.96%)
Opponent Winning Chances:	27.59% (G: 0.14% B: 0.00%)
Cubeless Equities
No Double:	+0.512
Double:	+2.652
Cubeful Equities
No Double:	+1.016
Double/Take:	+2.415 (+1.399)
Double/Drop:	+1.000 (-0.016)
Best Cube action: Too Good to Double / Drop
Rollout details
1296 Games rolled with Variance Reduction. Dice Seed: 1341 Moves and cube decisions: 4 ply
Confidence No Double:	± 0.012 (+1.004...+1.028)
Confidence Double:	± 0.107 (+2.308...+2.522)
Double Decision confidence:	99.5%
Take Decision confidence:	100.0%
Duration: 3 hours 31 minutes

eXtreme Gammon Version: 1.21

Last problem of "100 backgammon puzzles" by Paul Lamford 2

I created a new position from Paul's last problem.
XG thinks it is way too good (with jacoby and centered cube???). This is insane.

is Player 2 score: 0 pip: 60

Money session Jacoby Beaver

pip: 263 score: 0 is Player 1

XGID=-------------BBBBAAeAeBeB-:0:0:-1:00:0:0:3:0:10

on roll, cube action?

Analyzed in Rollout
No Double
Player Winning Chances:	68.10% (G: 53.43% B: 15.73%)
Opponent Winning Chances:	31.90% (G: 0.06% B: 0.00%)
Double/Take
Player Winning Chances:	70.07% (G: 56.74% B: 18.08%)
Opponent Winning Chances:	29.93% (G: 0.13% B: 0.00%)
Cubeless Equities
No Double:	+0.362
Double:	+2.297
Cubeful Equities
No Double:	+1.490
Double/Take:	+2.056 (+0.566)
Double/Drop:	+1.000 (-0.490)
Best Cube action: Too Good to Double / Drop
Rollout details
1296 Games rolled with Variance Reduction. Dice Seed: 1341 Moves and cube decisions: 3 ply
Confidence No Double:	± 0.092 (+1.398...+1.582)
Confidence Double:	± 0.124 (+1.932...+2.181)
Double Decision confidence:	100.0%
Take Decision confidence:	100.0%
Duration: 43 minutes 15 seconds

eXtreme Gammon Version: 1.21

Last problem of "100 backgammon puzzles" by Paul Lamford

is Player 2 score: 0 pip: 60

Money session Jacoby Beaver

pip: 330 score: 0 is Player 1

XGID=-------------------eEeEeE-:0:0:-1:D:0:0:3:0:10

double to 2 take ?

Analyzed in Rollout
No Double
Player Winning Chances:	83.98% (G: 56.17% B: 30.61%)
Opponent Winning Chances:	16.02% (G: 0.01% B: 0.00%)
Double/Take
Player Winning Chances:	81.40% (G: 69.01% B: 39.53%)
Opponent Winning Chances:	18.60% (G: 0.14% B: 0.00%)
Cubeless Equities
No Double:	+0.680
Double:	+3.424
Cubeful Equities
No Double:	+1.024
Double/Take:	+3.257 (+2.233)
Double/Drop:	+1.000 (-0.024)
Best Cube action: Too Good to Double / Drop
Rollout details
1296 Games rolled with Variance Reduction. Dice Seed: 1341 Moves and cube decisions: 3 ply
Confidence No Double:	± 0.017 (+1.007...+1.041)
Confidence Double:	± 0.136 (+3.121...+3.392)
Double Decision confidence:	99.7%
Take Decision confidence:	100.0%
Duration: 20 minutes 42 seconds

eXtreme Gammon Version: 1.21

This is a last problem of "100 backgammon puzzles" written by Paul Lamford. Paul says it is very easy take there fore no-doulbe is proper cube action. XG rollout (3ply full) is strongly against it.
However, I coudn't trust bot's recommendation of "too good to double" with Jacoby rule, centerd cube. Who is wrong, bot or Paul?
I set up XG playing each other to see how bot plays. I understand why it was too good. 3ply bot will take the bad cube later, so that doubler can gain by waiting one more roll.
Also, 3ply can't handle the outside prime("snake") properly. As a result, take side simply wasting TOO MUCH equity in the process.
The position below is ending scene of rollout and good sample of how bad bot plays. Human wouldn't stack 7 checkers on the 18point in this game.

is eXtremeGammon score: 0 pip: 10

Money session Jacoby Beaver

pip: 242 score: 0 is Masayuki Mochizuki

XGID=---------BC-------G-Aa-cB-:1:1:-1:66:0:0:3:0:10

to play 66

* 1.	3 ply	4/0ff 2/0ff(3)	eq: +3.000
	Player: Opponent: 100.00% (G:100.00% B:100.00%) 0.00% (G:0.00% B:0.00%)

eXtreme Gammon Version: 1.21

is Player 2 score: 0 pip: 180

Money session

pip: 74 score: 0 is Player 1

XGID=-BBBbbEcD---------bbbb----:1:1:1:00:0:0:0:0:10

on roll, cube action?

Analyzed in XG Roller+
Player Winning Chances:	66.56% (G: 51.37% B: 0.31%)
Opponent Winning Chances:	33.44% (G: 3.21% B: 0.15%)
Cubeless Equities
No Redouble:	+0.814
Redouble:	+1.539
Cubeful Equities
No Redouble:	+1.004
Redouble/Take:	+1.308 (+0.303)
Redouble/Drop:	+1.000 (-0.004)
Best Cube action: Too Good to Redouble / Drop

eXtreme Gammon Version: 1.21

My opponent (known to be strong player) took this cube with out hesitation. It is a good example of how complicated backgame is. Even an experienced player can be screwed up.

is Player 2 score: 0 pip: 156

1 point match

pip: 128 score: 0 is Player 1

XGID=-b-bB-CBDB--b--A-a-c-abAb-:0:0:-1:42:0:0:0:1:10

to play 42

1.	XG Roller+	24/20 22/20	eq: -0.453
	Player: Opponent: 27.34% (G:5.50% B:0.13%) 72.66% (G:28.65% B:2.19%)
2.	XG Roller+	24/20 4/2*	eq: -0.457 (-0.004)
	Player: Opponent: 27.14% (G:7.34% B:0.17%) 72.86% (G:27.74% B:2.18%)
3.	XG Roller+	6/2* 4/2	eq: -0.464 (-0.011)
	Player: Opponent: 26.79% (G:8.91% B:0.15%) 73.21% (G:25.21% B:1.91%)
4.	XG Roller+	22/20 6/2*	eq: -0.500 (-0.047)
	Player: Opponent: 24.98% (G:6.32% B:0.15%) 75.02% (G:35.45% B:5.32%)
5.	3 ply	24/20 6/4	eq: -0.538 (-0.084)
	Player: Opponent: 24.28% (G:5.04% B:0.16%) 75.72% (G:28.25% B:1.82%)

eXtreme Gammon Version: 1.21, MET: Rockwell-Kazaross

is neilkaz score: 8 pip: 92

11 point match

pip: 229 score: 5 is mochy

XGID=----A-D-----bB-B-bbbbabbEA:0:0:1:54:5:8:0:11:10

to play 54

1.	Rollout1	Bar/21* 21/16	eq: -1.257
	Player: Opponent: 25.04% (G:1.20% B:0.06%) 74.96% (G:56.01% B:14.28%) Conf: ± 0.010 (-1.267...-1.247) Duration: 5 minutes 16 seconds
* 2.	Rollout2	Bar/21* 15/10	eq: -1.382 (-0.126)
	Player: Opponent: 22.98% (G:1.65% B:0.09%) 77.02% (G:59.15% B:18.75%) Conf: ± 0.010 (-1.392...-1.372) Duration: 4 minutes 32 seconds
3.	3 ply	Bar/21* 13/8	eq: -1.327 (-0.071)
	Player: Opponent: 26.02% (G:1.28% B:0.04%) 73.98% (G:60.62% B:22.31%)
4.	2 ply	Bar/21* 6/1	eq: -1.486 (-0.230)
	Player: Opponent: 19.62% (G:0.87% B:0.01%) 80.38% (G:62.67% B:17.51%)
1 Truncated at 11 moves using 4 ply. 1626 Games rolled with Variance Reduction. Dice Seed: 1342 Moves and cube decisions: 3 ply 2 Truncated at 11 moves using 4 ply. 1773 Games rolled with Variance Reduction. Dice Seed: 1342 Moves and cube decisions: 3 ply

eXtreme Gammon Version: 1.21, MET: Rockwell-Kazaross

My plan is not appreciated by bot... Is it too risky? (more backgammon yes , but why less winning chance?)
Correction: ...(I understand I lose more backgammons but why do I also win less?

is Carlo Melzi score: 0 pip: 108

9 point match

pip: 186 score: 0 is Masayuki Mochizuki

XGID=-----BD-B--b-C--bacbc-b-CA:1:1:1:22:0:0:0:9:10

to play 22

1.	XG Roller+	Bar/21 6/4(2)	eq: -0.694
	Player: Opponent: 30.68% (G:3.42% B:0.14%) 69.32% (G:38.57% B:5.78%)
* 2.	XG Roller+	Bar/23 8/4 6/4	eq: -0.758 (-0.063)
	Player: Opponent: 28.15% (G:2.83% B:0.12%) 71.85% (G:38.34% B:5.53%)
3.	4 ply	Bar/23 6/4(2) 5/3	eq: -0.859 (-0.164)
	Player: Opponent: 26.37% (G:2.58% B:0.06%) 73.63% (G:42.12% B:7.31%)
4.	4 ply	Bar/21 8/4	eq: -0.887 (-0.193)
	Player: Opponent: 26.04% (G:2.64% B:0.07%) 73.96% (G:43.74% B:7.70%)
5.	4 ply	Bar/23 6/4 5/3(2)	eq: -0.890 (-0.196)
	Player: Opponent: 24.70% (G:2.09% B:0.05%) 75.30% (G:41.41% B:6.46%)

eXtreme Gammon Version: 1.21, MET: Rockwell-Kazaross

I have no timing for 1-2 backgame. I should try to seize 21point anchor. His 6 and 2 will be bad and I have slight chance to win forward.