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

BGonline.org Forums

A simple contact bearoff 32?

Posted By: Daniel Murphy
Date: Sunday, 3 June 2012, at 4:47 p.m.

In Response To: A simple contact bearoff 32? (David Rockwell)

I wished to repeat this comment by David Rockwell because I thought it useful and had not seen it before:

However, clearing the six point leaves four checkers on the three point. This is to be avoided whenever possible. Blue wants to hold as many points as he can as long as possible. Stacks of four make this more difficult.

Here is a rollout of David's altered position with the spare on the 2 point instead of the 3 point:

The score (after 0 games) is: White 0, Blue 0

Move number 5: Blue to play 32

White32

7X ' ' ' ' ' ' ' ' ' ' '

2O3O2O2O2O2O ' ' ' ' ' '
Blue44
Position ID: fwAAgHbbBgAAAA Match ID: UYkJAAAAAAAA

Alert: doubtful move ( -0.019)

# Ply Move Equity
1 R 3/1 3/off +0.3860
0.57980.00000.0000-0.42020.00000.0000 +0.1597 +0.3860
0.00040.00000.0000-0.00040.00000.0000 0.0009 0.0020
Full cubeful rollout with var.redn.
1296 games, Mersenne Twister dice gen. with seed 920798146 and quasi-random dice
Play: supremo 2-ply cubeful prune [world class]
keep the first 0 0-ply moves and up to 16 more moves within equity 0.32
Skip pruning for 1-ply moves.
Cube: 2-ply cubeful prune [world class]
2 R 6/4 6/3 +0.3674 ( -0.0186)
0.56930.00000.0000-0.43070.00000.0000 +0.1386 +0.3674
0.00040.00000.0000-0.00040.00000.0000 0.0008 0.0019
Full cubeful rollout with var.redn.
1296 games, Mersenne Twister dice gen. with seed 920798146 and quasi-random dice
Play: supremo 2-ply cubeful prune [world class]
keep the first 0 0-ply moves and up to 16 more moves within equity 0.32
Skip pruning for 1-ply moves.
Cube: 2-ply cubeful prune [world class]
3 R 3/off 2/off +0.3447 ( -0.0413)
0.55910.00000.0000-0.44090.00000.0000 +0.1182 +0.3447
0.00070.00000.0000-0.00070.00000.0000 0.0014 0.0021
Full cubeful rollout with var.redn.
1296 games, Mersenne Twister dice gen. with seed 920798146 and quasi-random dice
Play: supremo 2-ply cubeful prune [world class]
keep the first 0 0-ply moves and up to 16 more moves within equity 0.32
Skip pruning for 1-ply moves.
Cube: 2-ply cubeful prune [world class]
4 R 6/3 2/off +0.3000 ( -0.0860)
0.54410.00000.0000-0.45590.00000.0000 +0.0882 +0.3000
0.00040.00000.0000-0.00040.00000.0000 0.0008 0.0016
Full cubeful rollout with var.redn.
1296 games, Mersenne Twister dice gen. with seed 920798146 and quasi-random dice
Play: supremo 2-ply cubeful prune [world class]
keep the first 0 0-ply moves and up to 16 more moves within equity 0.32
Skip pruning for 1-ply moves.
Cube: 2-ply cubeful prune [world class]

And here with the spare on the 4 point:

The score (after 0 games) is: White 0, Blue 0

Move number 5: Blue to play 32

White32

7X ' ' ' ' ' ' ' ' ' ' '

2O2O2O3O2O2O ' ' ' ' ' '
Blue46
Position ID: fwAAgLbdBgAAAA Match ID: UYkJAAAAAAAA

Alert: bad move ( -0.040)

# Ply Move Equity
1 R 3/1 3/off +0.3733
0.57450.00000.0000-0.42550.00000.0000 +0.1490 +0.3733
0.00050.00000.0000-0.00050.00000.0000 0.0010 0.0022
Full cubeful rollout with var.redn.
1297 games, Mersenne Twister dice gen. with seed 920798146 and quasi-random dice
Play: supremo 2-ply cubeful prune [world class]
keep the first 0 0-ply moves and up to 16 more moves within equity 0.32
Skip pruning for 1-ply moves.
Cube: 2-ply cubeful prune [world class]
2 R 6/4 6/3 +0.3332 ( -0.0401)
0.55320.00000.0000-0.44680.00000.0000 +0.1065 +0.3332
0.00040.00000.0000-0.00040.00000.0000 0.0008 0.0022
Full cubeful rollout with var.redn.
1297 games, Mersenne Twister dice gen. with seed 920798146 and quasi-random dice
Play: supremo 2-ply cubeful prune [world class]
keep the first 0 0-ply moves and up to 16 more moves within equity 0.32
Skip pruning for 1-ply moves.
Cube: 2-ply cubeful prune [world class]
3 R 5/off +0.2983 ( -0.0750)
0.53460.00000.0000-0.46540.00000.0000 +0.0693 +0.2983
0.00050.00000.0000-0.00050.00000.0000 0.0009 0.0021
Full cubeful rollout with var.redn.
1297 games, Mersenne Twister dice gen. with seed 920798146 and quasi-random dice
Play: supremo 2-ply cubeful prune [world class]
keep the first 0 0-ply moves and up to 16 more moves within equity 0.32
Skip pruning for 1-ply moves.
Cube: 2-ply cubeful prune [world class]
4 R 4/1 2/off +0.2525 ( -0.1209)
0.51600.00000.0000-0.48400.00000.0000 +0.0321 +0.2525
0.00080.00000.0000-0.00080.00000.0000 0.0017 0.0029
Full cubeful rollout with var.redn.
1296 games, Mersenne Twister dice gen. with seed 920798146 and quasi-random dice
Play: supremo 2-ply cubeful prune [world class]
keep the first 0 0-ply moves and up to 16 more moves within equity 0.32
Skip pruning for 1-ply moves.
Cube: 2-ply cubeful prune [world class]
5 R 6/1 +0.2464 ( -0.1269)
0.51250.00000.0000-0.48750.00000.0000 +0.0250 +0.2464
0.00050.00000.0000-0.00050.00000.0000 0.0009 0.0022
Full cubeful rollout with var.redn.
1296 games, Mersenne Twister dice gen. with seed 920798146 and quasi-random dice
Play: supremo 2-ply cubeful prune [world class]
keep the first 0 0-ply moves and up to 16 more moves within equity 0.32
Skip pruning for 1-ply moves.
Cube: 2-ply cubeful prune [world class]
6 R 5/3 5/2 +0.2402 ( -0.1331)
0.51190.00000.0000-0.48810.00000.0000 +0.0238 +0.2402
0.00040.00000.0000-0.00040.00000.0000 0.0009 0.0021
Full cubeful rollout with var.redn.
1296 games, Mersenne Twister dice gen. with seed 920798146 and quasi-random dice
Play: supremo 2-ply cubeful prune [world class]
keep the first 0 0-ply moves and up to 16 more moves within equity 0.32
Skip pruning for 1-ply moves.
Cube: 2-ply cubeful prune [world class]

If the roll were 2-1 with the spare on the ace point:

The score (after 0 games) is: White 0, Blue 0

Move number 5: Blue to play 12

White32

7X ' ' ' ' ' ' ' ' ' ' '

3O2O2O2O2O2O ' ' ' ' ' '
Blue43
Position ID: fwAAgG7bBgAAAA Match ID: UYkIAAAAAAAA

Alert: doubtful move ( -0.026)

# Ply Move Equity
1 R 6/4 1/off +0.4094
0.56460.00000.0000-0.43540.00000.0000 +0.1291 +0.4094
0.00050.00000.0000-0.00050.00000.0000 0.0010 0.0026
Full cubeful rollout with var.redn.
1296 games, Mersenne Twister dice gen. with seed 920798146 and quasi-random dice
Play: supremo 2-ply cubeful prune [world class]
keep the first 0 0-ply moves and up to 16 more moves within equity 0.32
Skip pruning for 1-ply moves.
Cube: 2-ply cubeful prune [world class]
2 R 2/1 2/off +0.3832 ( -0.0263)
0.58270.00000.0000-0.41730.00000.0000 +0.1653 +0.3832
0.00050.00000.0000-0.00050.00000.0000 0.0010 0.0020
Full cubeful rollout with var.redn.
1296 games, Mersenne Twister dice gen. with seed 920798146 and quasi-random dice
Play: supremo 2-ply cubeful prune [world class]
keep the first 0 0-ply moves and up to 16 more moves within equity 0.32
Skip pruning for 1-ply moves.
Cube: 2-ply cubeful prune [world class]
3 R 6/5 6/4 +0.3792 ( -0.0303)
0.57030.00000.0000-0.42970.00000.0000 +0.1405 +0.3792
0.00040.00000.0000-0.00040.00000.0000 0.0008 0.0023
Full cubeful rollout with var.redn.
1296 games, Mersenne Twister dice gen. with seed 920798146 and quasi-random dice
Play: supremo 2-ply cubeful prune [world class]
keep the first 0 0-ply moves and up to 16 more moves within equity 0.32
Skip pruning for 1-ply moves.
Cube: 2-ply cubeful prune [world class]
4 R 2/off 1/off +0.3756 ( -0.0338)
0.57210.00000.0000-0.42790.00000.0000 +0.1443 +0.3756
0.00080.00000.0000-0.00080.00000.0000 0.0016 0.0025
Full cubeful rollout with var.redn.
1296 games, Mersenne Twister dice gen. with seed 920798146 and quasi-random dice
Play: supremo 2-ply cubeful prune [world class]
keep the first 0 0-ply moves and up to 16 more moves within equity 0.32
Skip pruning for 1-ply moves.
Cube: 2-ply cubeful prune [world class]

On the 2 point:

The score (after 0 games) is: White 0, Blue 0

Move number 5: Blue to play 12

White32

7X ' ' ' ' ' ' ' ' ' ' '

2O3O2O2O2O2O ' ' ' ' ' '
Blue44
Position ID: fwAAgHbbBgAAAA Match ID: UYkIAAAAAAAA

# Ply Move Equity
1 R 2/off 1/off +0.4910
0.61460.00000.0000-0.38540.00000.0000 +0.2293 +0.4910
0.00060.00000.0000-0.00060.00000.0000 0.0012 0.0026
Full cubeful rollout with var.redn.
1296 games, Mersenne Twister dice gen. with seed 920798146 and quasi-random dice
Play: supremo 2-ply cubeful prune [world class]
keep the first 0 0-ply moves and up to 16 more moves within equity 0.32
Skip pruning for 1-ply moves.
Cube: 2-ply cubeful prune [world class]
2 R 6/5 2/off +0.3931 ( -0.0979)
0.56080.00000.0000-0.43920.00000.0000 +0.1215 +0.3931
0.00050.00000.0000-0.00050.00000.0000 0.0010 0.0027
Full cubeful rollout with var.redn.
1296 games, Mersenne Twister dice gen. with seed 920798146 and quasi-random dice
Play: supremo 2-ply cubeful prune [world class]
keep the first 0 0-ply moves and up to 16 more moves within equity 0.32
Skip pruning for 1-ply moves.
Cube: 2-ply cubeful prune [world class]
3 R 6/5 6/4 +0.3714 ( -0.1197)
0.56610.00000.0000-0.43390.00000.0000 +0.1321 +0.3714
0.00040.00000.0000-0.00040.00000.0000 0.0008 0.0023
Full cubeful rollout with var.redn.
1296 games, Mersenne Twister dice gen. with seed 920798146 and quasi-random dice
Play: supremo 2-ply cubeful prune [world class]
keep the first 0 0-ply moves and up to 16 more moves within equity 0.32
Skip pruning for 1-ply moves.
Cube: 2-ply cubeful prune [world class]
4 2 5/4 2/off +0.2209 ( -0.2701)
0.5255 0.0000 0.0000 - 0.4745 0.0000 0.0000

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.