BGonline.org Forums

72-game rollouts in XG

Posted By: Neil Robins
Date: Tuesday, 3 May 2011, at 11:42 a.m.

In Response To: 72-game rollouts in XG (eXtreme Gammon)

It seems to me CI will be affected. If you turn VR off you currently have more than a 13% chance of seeing the result below for a 1296 rollout. What GNU does seems hugely preferable. Of course VR will fix this but when you trust VR to adjust things perfectly you hardly need a rollout at all.

		White is Player 2 score: 0 pip: 4 1 point match pip: 27 score: 0 Blue is Player 1
XGID=-AA---D---------------a-a-:0:0:1:21:0:0:0:1:10
Blue to play 21

1.	Rollout1	2/0ff 1/0ff	eq: -1.000
	Player: Opponent: 0.00% (G:0.00% B:0.00%) 100.00% (G:0.00% B:0.00%) Conf: ± 0.000 (-1.000...-1.000) Duration: 0.0 second
1 1296 Games rolled. Dice Seed: 31247 First 2 moves and cube decisions: 4 ply Remaining moves and cube decisions: 3 ply

eXtreme Gammon Version: 1.21, MET: Rockwell-Kazaross

#		Ply	Move	Equity
•	1	R	2/off 1/off	-0.997
			0.002 0.000 0.000 - 0.998 0.000 0.000 -0.997 -0.997 0.001 0.000 0.000 - 0.001 0.000 0.000 0.002 0.002
			Full cubeful rollout without var.redn.
			1296 games, Mersenne Twister dice gen. with seed 882216536 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]

Messages In This Thread

• 72-game rollouts in XG
  Timothy Chow -- Sunday, 1 May 2011, at 8:29 p.m.
  • 72-game rollouts in XG
    neilkaz -- Sunday, 1 May 2011, at 9:26 p.m.
    • 72-game rollouts in XG
      Timothy Chow -- Monday, 2 May 2011, at 4:02 p.m.
  • 72-game rollouts in XG
    eXtreme Gammon -- Sunday, 1 May 2011, at 10:59 p.m.
    • 72-game rollouts in XG
      Bob Koca -- Monday, 2 May 2011, at 1:58 a.m.
      • 72-game rollouts in XG
        eXtreme Gammon -- Monday, 2 May 2011, at 2:07 a.m.
    • 72-game rollouts in XG
      Bob Koca -- Monday, 2 May 2011, at 2:00 a.m.
      • 72-game rollouts in XG
        eXtreme Gammon -- Monday, 2 May 2011, at 2:09 a.m.
        • 72-game rollouts in XG
          Neil Robins -- Monday, 2 May 2011, at 11:56 a.m.
        • 72-game rollouts in XG
          Timothy Chow -- Monday, 2 May 2011, at 10:03 p.m.
          • 72-game rollouts in XG
            eXtreme Gammon -- Tuesday, 3 May 2011, at 1:39 a.m.
            • 72-game rollouts in XG
              Neil Robins -- Tuesday, 3 May 2011, at 11:42 a.m.
              • 72-game rollouts in XG
                eXtreme Gammon -- Tuesday, 3 May 2011, at 2:09 p.m.
            • 72-game rollouts in XG
              Timothy Chow -- Tuesday, 3 May 2011, at 3:27 p.m.
            • 72-game rollouts in XG
              Timothy Chow -- Monday, 23 May 2011, at 2:41 p.m.
              • 72-game rollouts in XG
                eXtreme Gammon -- Monday, 23 May 2011, at 3:53 p.m.