GnuBg settings to mimic XGR++

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GnuBg settings to mimic XGR++

Posted By: Taper_Mike
Date: Tuesday, 31 July 2012, at 10:58 a.m.

In Response To: GnuBg settings to mimic XGR++ (Daniel Murphy)

–

Mike, my understanding is that when setting the Gnubg truncation depth for a truncated rollout of a checker play, the first checker play is ply "1" -- and that plus the following 6 makes 7 "ply" in all.
If this were true, then a rollout that was truncated after 1 ply should be the same as a 0-ply eval. Correct? And if all we have is a 0-ply eval, then the number of trials should not matter. Each trial repeats exactly the 0-ply eval you had the first time. Also correct?
You can evaluate a position with 0-ply, but you can't run a Gnubg truncated rollout with ply "0." Try it: Open the Rollouts / Settings window, check the "Truncate Rollouts" checkbox and set "Truncate at ply" to "0." Close the window and reopen it. Your check box will be unchecked, and the "truncate at ply" will be greyed out.
Exactly as you say!
In other words, Gnubg doesn't count "ply" the same way for truncation depth and for evaluation/analysis depth. Or so it seems.
Just to make sure, I set the checker/cube Play Settings for rollouts to “expert” (0-ply). Then I did the same for Players and Analysis. But in the position I tested, 21$-62Z-31, the rollouts match, to 6 decimal places, the results of a 1-ply eval, rather than that of a 0-ply.
Mike

0-Ply Eval

The score (after 0 games) is: gnubg 0, human 0
Move number 3: human to play 31

gnubg 159

human 164
Position ID: 4OvgASTQc+QBMA Match ID: cIkFAAAAAAAA

• human moves 13/10 6/5

# Ply Move Equity

1 0 6/5 6/3* +0.190948

0.553796 0.175009 0.009557 - 0.446204 0.138067 0.008357

• 2 0 13/10 6/5 +0.174744 ( -0.016204)

0.548210 0.164426 0.006670 - 0.451790 0.127208 0.005709

3 0 24/21 6/5 +0.171247 ( -0.019701)

0.550290 0.153227 0.006475 - 0.449710 0.128475 0.003573

1-Ply Eval

The score (after 0 games) is: gnubg 0, human 0
Move number 3: human to play 31

gnubg 159

human 164
Position ID: 4OvgASTQc+QBMA Match ID: cIkFAAAAAAAA

• human moves 13/10 6/5

# Ply Move Equity

• 1 1 13/10 6/5 +0.158369

0.543678 0.165059 0.007086 - 0.456322 0.130242 0.007259

2 1 6/5 6/3* +0.143099 ( -0.015270)

0.537250 0.164912 0.008702 - 0.462750 0.140918 0.008605

3 1 24/21 6/5 +0.122751 ( -0.035618)

0.536646 0.147147 0.005551 - 0.463354 0.130115 0.004677

Rollout Truncated after 1 Ply (1 trial)

The score (after 0 games) is: gnubg 0, human 0
Move number 3: human to play 31

gnubg 159

human 164
Position ID: 4OvgASTQc+QBMA Match ID: cIkFAAAAAAAA

• human moves 13/10 6/5

# Ply Move Equity

• 1 R 13/10 6/5 +0.158369

0.543678 0.165059 0.007086 - 0.456322 0.130242 0.007259 +0.122001 +0.158369

0.000000 0.000000 0.000000 - 0.000000 0.000000 0.000000 0.000000 0.000000

Truncated cubeful rollout (depth 1) with var.redn.

1 games, Mersenne Twister dice gen. with seed 691526212 and quasi-random dice

Play: 0-ply cubeful [expert]

Cube: 0-ply cubeful [expert]

2 R 6/5 6/3* +0.143099 ( -0.015270)

0.537250 0.164912 0.008702 - 0.462750 0.140918 0.008605 +0.098592 +0.143099

0.000000 0.000000 0.000000 - 0.000000 0.000000 0.000000 0.000000 0.000000

Truncated cubeful rollout (depth 1) with var.redn.

1 games, Mersenne Twister dice gen. with seed 691526212 and quasi-random dice

Play: 0-ply cubeful [expert]

Cube: 0-ply cubeful [expert]

3 R 24/21 6/5 +0.122751 ( -0.035618)

0.536646 0.147147 0.005551 - 0.463354 0.130115 0.004677 +0.091196 +0.122751

0.000000 0.000000 0.000000 - 0.000000 0.000000 0.000000 0.000000 0.000000

Truncated cubeful rollout (depth 1) with var.redn.

1 games, Mersenne Twister dice gen. with seed 691526212 and quasi-random dice

Play: 0-ply cubeful [expert]

Cube: 0-ply cubeful [expert]

Rollout Truncated after 1 Ply (360 trials)

The score (after 0 games) is: gnubg 0, human 0
Move number 3: human to play 31

gnubg 159

human 164
Position ID: 4OvgASTQc+QBMA Match ID: cIkFAAAAAAAA

• human moves 13/10 6/5

# Ply Move Equity

• 1 R 13/10 6/5 +0.158369

0.543678 0.165059 0.007086 - 0.456322 0.130242 0.007259 +0.122001 +0.158369

0.000000 0.000000 0.000000 - 0.000000 0.000000 0.000000 0.000000 0.000000

Truncated cubeful rollout (depth 1) with var.redn.

360 games, Mersenne Twister dice gen. with seed 691526212 and quasi-random dice

Play: 0-ply cubeful [expert]

Cube: 0-ply cubeful [expert]

2 R 6/5 6/3* +0.143099 ( -0.015270)

0.537250 0.164912 0.008702 - 0.462750 0.140918 0.008605 +0.098592 +0.143099

0.000000 0.000000 0.000000 - 0.000000 0.000000 0.000000 0.000000 0.000000

Truncated cubeful rollout (depth 1) with var.redn.

360 games, Mersenne Twister dice gen. with seed 691526212 and quasi-random dice

Play: 0-ply cubeful [expert]

Cube: 0-ply cubeful [expert]

3 R 24/21 6/5 +0.122751 ( -0.035618)

0.536646 0.147147 0.005551 - 0.463354 0.130115 0.004677 +0.091196 +0.122751

0.000000 0.000000 0.000000 - 0.000000 0.000000 0.000000 0.000000 0.000000

Truncated cubeful rollout (depth 1) with var.redn.

360 games, Mersenne Twister dice gen. with seed 691526212 and quasi-random dice

Play: 0-ply cubeful [expert]

Cube: 0-ply cubeful [expert]

gnubg	159

human	164
Position ID: `4OvgASTQc+QBMA` Match ID: `cIkFAAAAAAAA`

#	Ply	Move	Equity
	1	0	6/5 6/3*	+0.190948
	0.553796 0.175009 0.009557 - 0.446204 0.138067 0.008357
•	2	0	13/10 6/5	+0.174744 ( -0.016204)
	0.548210 0.164426 0.006670 - 0.451790 0.127208 0.005709
	3	0	24/21 6/5	+0.171247 ( -0.019701)
	0.550290 0.153227 0.006475 - 0.449710 0.128475 0.003573

gnubg	159

human	164
Position ID: `4OvgASTQc+QBMA` Match ID: `cIkFAAAAAAAA`

#	Ply	Move	Equity
•	1	1	13/10 6/5	+0.158369
	0.543678 0.165059 0.007086 - 0.456322 0.130242 0.007259
	2	1	6/5 6/3*	+0.143099 ( -0.015270)
	0.537250 0.164912 0.008702 - 0.462750 0.140918 0.008605
	3	1	24/21 6/5	+0.122751 ( -0.035618)
	0.536646 0.147147 0.005551 - 0.463354 0.130115 0.004677

gnubg	159

human	164
Position ID: `4OvgASTQc+QBMA` Match ID: `cIkFAAAAAAAA`

gnubg	159

human	164
Position ID: `4OvgASTQc+QBMA` Match ID: `cIkFAAAAAAAA`

Messages In This Thread

Stick's Matches from Novi
Dmitriy Obukhov -- Monday, 30 July 2012, at 3:22 a.m.
- Stick's Matches from Novi
  Stick -- Monday, 30 July 2012, at 4:07 a.m.
  - Stick's Matches from Novi
    David Wells -- Monday, 30 July 2012, at 8:19 a.m.
- Stick vs Merriman: XG++ Data Makes No Sense
  Paul Weaver -- Monday, 30 July 2012, at 8:57 a.m.
  - Stick vs Merriman: XG++ Data Makes No Sense
    Carlo Melzi -- Monday, 30 July 2012, at 10:08 a.m.
    - Stick vs Merriman: XG++ Data Makes No Sense
      Bob Koca -- Monday, 30 July 2012, at 2:27 p.m.
  - Stick vs Merriman: XG++ Data Makes No Sense
    Rick Janowski -- Monday, 30 July 2012, at 3:09 p.m.
    - Stick vs Merriman: XG++ Data Makes No Sense
      Bob Koca -- Monday, 30 July 2012, at 4:04 p.m.
      - Stick vs Merriman: XG++ Data Makes No Sense
        Keene -- Monday, 30 July 2012, at 4:32 p.m.
        
        Stick vs Merriman: XG++ Data Makes No Sense
        Bob koca -- Monday, 30 July 2012, at 4:53 p.m.
      - Stick vs Merriman: XG++ Data Makes No Sense
        Rick Janowski -- Monday, 30 July 2012, at 5:53 p.m.
  - RO and XG is having issues with this score and cube position it seems
    neilkaz -- Monday, 30 July 2012, at 3:42 p.m.
  - Stick vs Merriman: XG++ Data Makes No Sense
    Stick -- Monday, 30 July 2012, at 3:47 p.m.
    - Stick vs Merriman: XG++ Data Makes No Sense
      Rick Janowski -- Monday, 30 July 2012, at 5:48 p.m.
  - Stick vs Merriman: XG++ Data Makes No Sense
    Daniel Murphy -- Monday, 30 July 2012, at 6:27 p.m.
    - problem at truncation -
      eXtreme Gammon -- Monday, 30 July 2012, at 7:34 p.m.
      - problem at truncation -
        Daniel Murphy -- Tuesday, 31 July 2012, at 4:45 a.m.
    - GnuBg settings to mimic XGR++
      Taper_Mike -- Tuesday, 31 July 2012, at 12:36 a.m.
      - GnuBg settings to mimic XGR++
        Daniel Murphy -- Tuesday, 31 July 2012, at 1:55 a.m.
        
        GnuBg settings to mimic XGR++
        Taper_Mike -- Tuesday, 31 July 2012, at 5:28 a.m.
        
        GnuBg settings to mimic XGR++
        Daniel Murphy -- Tuesday, 31 July 2012, at 6:25 a.m.
        
        GnuBg settings to mimic XGR++
        Taper_Mike -- Tuesday, 31 July 2012, at 10:58 a.m.

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