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Rollout: Winning a "won" game

Posted By: Timothy Chow
Date: Tuesday, 13 July 2010, at 2:28 a.m.

In Response To: Winning a "won" game (Timothy Chow)

This should have been a won game, because the rollout verdict is RD/P.

I played 11/7* 11/8, which GNU 2-ply thought was a blunder. However, that verdict was overturned upon rollout.

gnubg	132
tchow	103
Position ID: s20IEA7Gnp0BAA Match ID: UYkRABAAAAAA

Alert: missed double ( -0.095)! [bad]

Cube decision
Rollout cubeless equity		+0.570
Cubeful equities:
1.	Double, pass	+1.000
2.	Double, take	+1.023	+0.023
3.	No double	+0.905	-0.095
Proper cube action:		Redouble, pass
Rollout details
Win W g W bg Lose L g L bg Cubeless Cubeful Player tchow owns 2-cube 0.747 0.098 0.002 - 0.253 0.023 0.000 +0.570 +0.905 Standard error 0.001 0.001 0.000 - 0.001 0.001 0.000 0.002 0.004 Player gnubg owns 4-cube 0.752 0.118 0.002 - 0.248 0.022 0.000 +1.204 +1.023 Standard error 0.001 0.001 0.000 - 0.001 0.001 0.000 0.004 0.006
Full cubeful rollout with var.redn.
2592 games, Mersenne Twister dice gen. with seed 889692545 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]

gnubg	132
tchow	103
Position ID: s20IEA7Gnp0BAA Match ID: UYkRABAAAAAA

• tchow moves 11/8 11/7*

#		Ply	Move	Equity
•	1	R	11/8 11/7*	+0.831
			0.715 0.157 0.003 - 0.285 0.042 0.000 +0.547 +0.831 0.001 0.001 0.000 - 0.001 0.001 0.000 0.002 0.003
			Full cubeful rollout with var.redn.
			1296 games, Mersenne Twister dice gen. with seed 889812646 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]
	2	R	9/2	+0.794 ( -0.037)
			0.708 0.069 0.002 - 0.292 0.026 0.001 +0.460 +0.794 0.001 0.001 0.000 - 0.001 0.001 0.000 0.003 0.006
			Full cubeful rollout with var.redn.
			1296 games, Mersenne Twister dice gen. with seed 889812646 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]

Messages In This Thread

• Winning a "won" game
  Timothy Chow -- Monday, 12 July 2010, at 2:38 a.m.
  • Winning a "won" game
    Paul Weaver -- Monday, 12 July 2010, at 8:13 a.m.
  • Winning a "won" game
    Casper van der Tak -- Monday, 12 July 2010, at 9:03 a.m.
  • Winning a "won" game
    Havard Raddum -- Monday, 12 July 2010, at 9:24 a.m.
  • Winning a "won" game
    Matt Cohn-Geier -- Monday, 12 July 2010, at 12:33 p.m.
  • Rollout: Winning a "won" game
    Timothy Chow -- Tuesday, 13 July 2010, at 2:28 a.m.