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Daniel (and I) like this rollout better...

Posted By: Chuck Bower
Date: Sunday, 20 May 2007, at 5:24 p.m.

In Response To: Re: Rollouts + Explanations (Daniel Murphy)

...Maybe. Note I did something very non-conventional -- 3-ply cube for Blue and 2-ply cube for White. The idea was that 3-ply is better on the double/no decision for one-way holding games whereas 2-ply is not only faster and more reliable in general cube decisions but also good with the TAKE side. Thus both sides have their strong characteristics highlighted here. (But there could be a bias so please chime in if you feel one is present.)

The score (after 0 games) is: White 0, Blue 0 (match to 19 points)

Move number 4: Blue to play 63

Pip counts: White 140, Blue 103
Position ID: rLvAgCE2PgcHAA Match ID: cAlvAgAAAAAA

• Blue doubles

Alert: wrong double ( -0.0103)! [doubtful]

Cube decision
Rollout cubeless equity		+0.4245	(Money: +0.4220)
Cubeful equities:
1.	No double	+0.6693
2.	Double, pass	+1.0000	+0.3307
3.	Double, take	+0.6590	-0.0103
Proper cube action:		No double, take (3.0%)
Rollout details
Win W g W bg Lose L g L bg Cubeless Cubeful Centered 1-cube 0.6763 0.1232 0.0020 - 0.3237 0.0544 0.0015 +0.4245 +0.6693 Standard error 0.0006 0.0007 0.0002 - 0.0006 0.0005 0.0001 0.0014 0.0036 Player White owns 2-cube 0.6777 0.1237 0.0018 - 0.3223 0.0537 0.0015 +0.8697 +0.6590 Standard error 0.0007 0.0008 0.0002 - 0.0007 0.0006 0.0001 0.0032 0.0044
Full cubeful rollout with var.redn.
5661 games, Mersenne Twister dice gen. with seed 1063539840 and quasi-random dice
Stop when best play is enough JSDs ahead: limit 3.5 (min. 432 games)
Player 0:
Play: world class 2-ply cubeful prune [world class]
keep the first 0 0-ply moves and up to 8 more moves within equity 0.16
Skip pruning for 1-ply moves.
Cube: 2-ply cubeful prune [world class]
Player 1:
Play: world class 2-ply cubeful prune [world class]
keep the first 0 0-ply moves and up to 8 more moves within equity 0.16
Skip pruning for 1-ply moves.
Cube: 3-ply cubeful prune [grandmaster]

Messages In This Thread

• Nack v. Sylvestor - 3 Cube Decisions
  Stick -- Monday, 14 May 2007, at 12:21 a.m.
  • Re: Nack v. Sylvestor - 3 Cube Decisions
    Matt Cohn-Geier -- Monday, 14 May 2007, at 3:01 a.m.
  • Re: Nack v. Sylvestor - 3 Cube Decisions
    neilkaz -- Monday, 14 May 2007, at 3:11 p.m.
  • Re: Nack v. Sylvestor - 3 Cube Decisions
    Ian Shaw -- Tuesday, 15 May 2007, at 12:03 p.m.
  • sidelight
    Chuck Bower -- Tuesday, 15 May 2007, at 4:17 p.m.
    • Re: sidelight
      Chuck Bower -- Friday, 18 May 2007, at 8:38 p.m.
      • Re: Re: sidelight
        neilkaz -- Saturday, 19 May 2007, at 2:33 p.m.
        • Re: sidelight
          Stick -- Saturday, 19 May 2007, at 4:41 p.m.
          • Re: Re: sidelight
            Chuck Bower -- Sunday, 20 May 2007, at 5:18 p.m.
  • Rollouts + Explanations
    Stick -- Friday, 18 May 2007, at 12:36 a.m.
    • Re: Rollouts + Explanations
      Daniel Murphy -- Friday, 18 May 2007, at 4:40 a.m.
      • Daniel (and I) like this rollout better...
        Chuck Bower -- Sunday, 20 May 2007, at 5:24 p.m.
        • Well done..
          neilkaz -- Sunday, 20 May 2007, at 5:55 p.m.
          • Re: Well done..
            Daniel Murphy -- Sunday, 20 May 2007, at 9:06 p.m.