BGonline.org Forums

A simple ace pt game***RO***

Posted By: Daniel Murphy
Date: Saturday, 19 November 2011, at 7:43 a.m.

In Response To: A simple ace pt game***RO*** (Dmitriy Obukhov)

With similar results, here's a Gnubg 2-ply rollout, 2592 trials. Below that is a table of the actual rollout results after No Double. Of particular interest, after No Double (1) Blue actually won slightly more than 84% of all games and (2) in only 21.5% of all games was Blue or White able to give a takable double later.

The score (after 0 games) is: White 1, Blue 5 (match to 7 points). Blue on roll

White	134
Blue	95
Position ID: 6m7ACDBmtw0GAA Match ID: cAngABAAKAAE

Alert: wrong double ( -0.0307)! [doubtful]

Cube decision
Rollout cubeless equity		+0.8792	(Money: +0.8963)
Cubeful equities:
1.	No double	+0.9564
2.	Double, pass	+1.0000	+0.0436
3.	Double, take	+0.9257	-0.0307
Proper cube action:		No double, take (41.3%)
Rollout details
Win W g W bg Lose L g L bg Cubeless Cubeful Centered 1-cube 0.7869 0.2534 0.0848 - 0.2131 0.0151 0.0006 +0.8792 +0.9564 Standard error 0.0011 0.0031 0.0035 - 0.0011 0.0005 0.0001 0.0036 0.0047 Player White owns 2-cube 0.7775 0.3843 0.1226 - 0.2225 0.0135 0.0024 +1.4794 +0.9257 Standard error 0.0013 0.0059 0.0042 - 0.0013 0.0005 0.0008 0.0066 0.0099
Full cubeful rollout with var.redn.
2592 games, Mersenne Twister dice gen. with seed 938452126 and quasi-random dice
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]

WIN STATISTICS for NO DOUBLE (2592 trials)

Cube Value	W Wins S	W wins G	W wins BG	B wins S	B wins G
1	157	2	0	1483	393
2	164	12	1	156	0
4	70	1	0	153	0
Total	391	15	1	1792	393
	15.08%	0.58%	0.04%	69.13%	15.16%

Messages In This Thread

• A simple ace pt game
  Dmitriy Obukhov -- Wednesday, 16 November 2011, at 3:24 a.m.
  • A simple ace pt game
    David Kettler -- Wednesday, 16 November 2011, at 5:22 a.m.
    • A simple ace pt game
      Stick -- Wednesday, 16 November 2011, at 8:53 a.m.
      • A simple ace pt game
        christian munk-christensen -- Wednesday, 16 November 2011, at 4:22 p.m.
        • A simple ace pt game
          David Kettler -- Thursday, 17 November 2011, at 12:55 a.m.
          • A simple ace pt game
            Stick -- Thursday, 17 November 2011, at 1:14 a.m.
            • A simple ace pt game
              David Kettler -- Thursday, 17 November 2011, at 4:20 a.m.
          • A simple ace pt game
            Daniel Murphy -- Thursday, 17 November 2011, at 2:00 a.m.
            • A simple ace pt game
              neilkaz -- Thursday, 17 November 2011, at 4:06 p.m.
          • A simple ace pt game
            Timothy Chow -- Thursday, 17 November 2011, at 6:27 p.m.
      • A simple ace pt game
        Timothy Chow -- Wednesday, 16 November 2011, at 10:31 p.m.
        • A simple ace pt game
          Casper van der Tak -- Wednesday, 16 November 2011, at 11:22 p.m.
        • A simple ace pt game
          Chuck Bower -- Friday, 18 November 2011, at 5:40 p.m.
      • A simple ace pt game
        Sam Pottle -- Thursday, 17 November 2011, at 4:27 a.m.
      • A simple ace pt game
        Turz -- Thursday, 17 November 2011, at 3:21 p.m.
        • A simple ace pt game
          Stick -- Thursday, 17 November 2011, at 8:51 p.m.
  • A simple ace pt game
    Timothy Chow -- Thursday, 17 November 2011, at 2:04 a.m.
  • A simple ace pt game***RO***
    Dmitriy Obukhov -- Friday, 18 November 2011, at 9:11 a.m.
    • A simple ace pt game***RO***
      Timothy Chow -- Friday, 18 November 2011, at 6:29 p.m.
    • What happened OTB? *NM*
      neilkaz -- Saturday, 19 November 2011, at 3:38 a.m.
      • What happened OTB?
        Dmitriy Obukhov -- Saturday, 19 November 2011, at 4:10 a.m.
    • A simple ace pt game***RO***
      Daniel Murphy -- Saturday, 19 November 2011, at 7:43 a.m.