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How To Post a Rollout from GNU Backgammon

Posted By: bb766
Date: Friday, 17 May 2013, at 10:00 p.m.

In Response To: How To Post a Rollout from GNU Backgammon (Taper_Mike)

Thanks for the instructions, posting is so simple...

It's amazing to see the difference between the 4ply analysis and a rollout using supremo play settings. It really makes me question what the bot is telling me.

4-ply says dropping is a 0.212 error (Very Bad), the rollout says taking is a 0.164 error (Very Bad). That's a swing of 0.376!

The score (after 0 games) is: Owner 0, player 0 (match to 7 points)

Move number 4: player on roll, cube decision?

Owner	60
player	110
Position ID: 7m8AANDWNgFQCA Match ID: UQngAAAAAAAE

• player doubles

Cube decision
Rollout cubeless equity		+0.517	(Money: +0.510)
Cubeful equities:
1.	Double, pass	+1.000
2.	Double, take	+1.164	+0.164
3.	No double	+0.894	-0.106
Proper cube action:		Redouble, pass
Rollout details
Win W g W bg Lose L g L bg Cubeless Cubeful Player KobZero owns 2-cube 0.796 0.000 0.000 - 0.204 0.078 0.005 +0.517 +0.894 Standard error 0.002 0.000 0.000 - 0.002 0.002 0.001 0.003 0.008 Player You owns 4-cube 0.826 0.000 0.000 - 0.174 0.077 0.011 +1.227 +1.164 Standard error 0.001 0.000 0.000 - 0.001 0.002 0.002 0.006 0.007
Full cubeful rollout with var.redn.
1296 games, Mersenne Twister dice gen. with seed 683508175 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]

Cube decision
4-ply cubeless equity		+0.429	(Money: +0.434)
	0.753 0.000 0.000 - 0.247 0.070 0.002
Cubeful equities:
1.	Double, take	+0.788
2.	Double, pass	+1.000	+0.212
3.	No double	+0.699	-0.089
Proper cube action:		Redouble, take

Messages In This Thread

• major disagreement between GnuBG 0-4 ply and rollout...or, am I doing it wrong?!
  bb766 -- Friday, 17 May 2013, at 4:09 a.m.
  • How To Post a Rollout from GNU Backgammon
    Taper_Mike -- Friday, 17 May 2013, at 7:52 a.m.
    • How To Post a Rollout from GNU Backgammon
      bb766 -- Friday, 17 May 2013, at 10:00 p.m.
  • major disagreement between GnuBG 0-4 ply and rollout...or, am I doing it wrong?!
    Daniel Murphy -- Friday, 17 May 2013, at 8:15 a.m.
  • major disagreement between GnuBG 0-4 ply and rollout...or, am I doing it wrong?!
    Michael Nielsen -- Friday, 17 May 2013, at 8:40 a.m.
  • major disagreement between GnuBG 0-4 ply and rollout...or, am I doing it wrong?!
    Timothy Chow -- Friday, 17 May 2013, at 11:58 p.m.
    • major disagreement between GnuBG 0-4 ply and rollout...or, am I doing it wrong?!
      Taper_Mike -- Sunday, 19 May 2013, at 12:19 a.m.
      • Bots, cubes, and equities
        Timothy Chow -- Sunday, 19 May 2013, at 2:27 a.m.
        • Bots, cubes, and equities
          Taper_Mike -- Sunday, 19 May 2013, at 9:38 p.m.