[ View Thread ] [ Post Response ] [ Return to Index ] [ Read Prev Msg ] [ Read Next Msg ]

BGonline.org Forums

Backgammon Boot Camp #1-31 (To hit or not to hit?) -- Rollouts

Posted By: Igor
Date: Saturday, 24 January 2015, at 3:22 a.m.

In Response To: Backgammon Boot Camp #1-31 (To hit or not to hit?) (Igor)

The solid play like 13/11 6/5 is good when you're winning and need to tighten up your position before bringing it home. It also makes sense when you are losing badly and want to cut your losses. But it's just too passive early in the game when it's anybody game and you also have the security of an anchor. You have 9.5 checkers in the zone and a stacked 6pt; it't time to attack.





White is Player 2

score: 0
pip: 146
Unlimited Game
Jacoby Beaver
pip: 150
score: 0

Blue is Player 1
XGID=-a---BEaB--AdC---b-cbbB---:0:0:1:21:0:0:3:0:10
Blue to play 21

1.Rollout18/7* 7/5eq: -0.209
Player:
Opponent:
43.77% (G:14.05% B:0.45%)
56.23% (G:14.24% B:0.65%)
Conf.: 0.014 (-0.224...-0.195) - [100.0%]
Duration: 5 minutes 46 seconds
2.Rollout113/11 6/5eq: -0.250 (-0.041)
Player:
Opponent:
42.84% (G:10.74% B:0.31%)
57.16% (G:11.58% B:0.47%)
Conf.: 0.012 (-0.262...-0.238) - [0.0%]
Duration: 6 minutes 22 seconds
1 1296 Games rolled with Variance Reduction.
Dice Seed: 65637602
Moves: 3-ply, cube decisions: XG Roller

eXtreme Gammon Version: 2.10

The following variants show that it's correct to hit no matter where your anchor is. Fight for the initiative in the early stages of the game!





White is Player 2

score: 0
pip: 142
Unlimited Game
Jacoby Beaver
pip: 146
score: 0

Blue is Player 1
XGID=-a---BEaB--AdC---b-cBbb---:0:0:1:21:0:0:3:0:10
Blue to play 21

1.Rollout18/7* 7/5eq: +0.289
Player:
Opponent:
55.77% (G:17.09% B:0.43%)
44.23% (G:8.06% B:0.32%)
Conf.: 0.012 (+0.277...+0.301) - [100.0%]
Duration: 5 minutes 55 seconds
2.Rollout113/11 6/5eq: +0.169 (-0.120)
Player:
Opponent:
53.66% (G:12.44% B:0.34%)
46.34% (G:6.82% B:0.26%)
Conf.: 0.012 (+0.157...+0.181) - [0.0%]
Duration: 6 minutes 44 seconds
1 1296 Games rolled with Variance Reduction.
Dice Seed: 19511397
Moves: 3-ply, cube decisions: XG Roller

eXtreme Gammon Version: 2.10





White is Player 2

score: 0
pip: 144
Unlimited Game
Jacoby Beaver
pip: 148
score: 0

Blue is Player 1
XGID=-a---BEaB--AdC---b-cbBb---:0:0:1:21:0:0:3:0:10
Blue to play 21

1.Rollout18/7* 7/5eq: +0.094
Player:
Opponent:
51.30% (G:15.74% B:0.43%)
48.70% (G:10.36% B:0.45%)
Conf.: 0.015 (+0.079...+0.108) - [100.0%]
Duration: 6 minutes 18 seconds
2.Rollout113/11 6/5eq: +0.044 (-0.050)
Player:
Opponent:
50.10% (G:12.12% B:0.35%)
49.90% (G:8.69% B:0.34%)
Conf.: 0.011 (+0.033...+0.055) - [0.0%]
Duration: 7 minutes 01 second
1 1296 Games rolled with Variance Reduction.
Dice Seed: 19511397
Moves: 3-ply, cube decisions: XG Roller

eXtreme Gammon Version: 2.10





White is Player 2

score: 0
pip: 146
Unlimited Game
Jacoby Beaver
pip: 152
score: 0

Blue is Player 1
XGID=-a---BEaB--AdC---b-cbb-B--:0:0:1:21:0:0:3:0:10
Blue to play 21

1.Rollout18/7* 7/5eq: -0.485
Player:
Opponent:
37.33% (G:12.78% B:0.44%)
62.67% (G:19.54% B:1.11%)
Conf.: 0.016 (-0.501...-0.469) - [100.0%]
Duration: 4 minutes 41 seconds
2.Rollout123/22 13/11eq: -0.566 (-0.081)
Player:
Opponent:
36.83% (G:9.84% B:0.45%)
63.17% (G:21.58% B:1.00%)
Conf.: 0.019 (-0.585...-0.547) - [0.0%]
Duration: 5 minutes 09 seconds
3.Rollout113/11 6/5eq: -0.573 (-0.089)
Player:
Opponent:
35.53% (G:9.86% B:0.33%)
64.47% (G:17.18% B:0.88%)
Conf.: 0.014 (-0.587...-0.559) - [0.0%]
Duration: 4 minutes 55 seconds
1 1296 Games rolled with Variance Reduction.
Dice Seed: 19511397
Moves: 3-ply, cube decisions: XG Roller

eXtreme Gammon Version: 2.10





White is Player 2

score: 0
pip: 146
Unlimited Game
Jacoby Beaver
pip: 154
score: 0

Blue is Player 1
XGID=-a---BEaB--AdC---b-cbb--B-:0:0:1:21:0:0:3:0:10
Blue to play 21

1.Rollout18/7* 7/5eq: -0.484
Player:
Opponent:
38.11% (G:13.01% B:0.56%)
61.89% (G:22.25% B:1.61%)
Conf.: 0.018 (-0.502...-0.466) - [100.0%]
Duration: 5 minutes 07 seconds
2.Rollout113/11 6/5eq: -0.603 (-0.119)
Player:
Opponent:
35.66% (G:10.44% B:0.39%)
64.34% (G:20.40% B:1.15%)
Conf.: 0.014 (-0.617...-0.589) - [0.0%]
Duration: 4 minutes 47 seconds
1 1296 Games rolled with Variance Reduction.
Dice Seed: 19511397
Moves: 3-ply, cube decisions: XG Roller

eXtreme Gammon Version: 2.10

Messages In This Thread

 

Post Response

Your Name:
Your E-Mail Address:
Subject:
Message:

If necessary, enter your password below:

Password:

 

 

[ View Thread ] [ Post Response ] [ Return to Index ] [ Read Prev Msg ] [ Read Next Msg ]

BGonline.org Forums is maintained by Stick with WebBBS 5.12.