BGonline.org Forums

Rollout: A not-quite-standard holding game

Posted By: Timothy Chow
Date: Friday, 12 March 2010, at 4:53 p.m.

In Response To: A not-quite-standard holding game (Timothy Chow)

The rollout favors 6/4 6/2, by a larger margin than I expected. OTB, I played 7/3*/1, thinking that I would welcome a tempo to clear my midpoint. This is not a huge blunder, but I still have time, and my opponent is starting to run a little short of time himself, so it seems that the greater flexibility of 6/4 6/2 wins out.

Below, I have also included a rollout of the decision I faced on the previous roll, which was also a 4-2. I chose to play 13/7, but again the rollout expresses a slight preference for 6/4 6/2.

Another variant that I'm currently rolling out is to move my blot on the 1-point back a pip to the 2-point, and to change the roll to 4-1. I'll post it here when it's done.

gnubg	141
tchow	102
Position ID: bDvIgAkx3w0GAA Match ID: QQkKAAAAAAAA

#		Ply	Move	Equity
•	1	R	6/4 6/2	+0.532
			0.769 0.091 0.001 - 0.231 0.028 0.001 +0.601 +0.532 0.001 0.001 0.000 - 0.001 0.001 0.000 0.002 0.002
			Full cubeful rollout with var.redn.
			2592 games, Mersenne Twister dice gen. with seed 851251993 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	7/3*/1	+0.499 ( -0.032)
			0.747 0.133 0.001 - 0.253 0.035 0.001 +0.591 +0.499 0.001 0.001 0.000 - 0.001 0.001 0.000 0.002 0.003
			Full cubeful rollout with var.redn.
			2592 games, Mersenne Twister dice gen. with seed 851251993 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	148
tchow	108
Position ID: rJ1ggQkx3wYHAA Match ID: QQkRAAAAAAAA

#		Ply	Move	Equity
•	1	R	6/4 6/2	+0.536
			0.767 0.102 0.001 - 0.233 0.030 0.001 +0.607 +0.536 0.001 0.001 0.000 - 0.001 0.001 0.000 0.002 0.003
			Full cubeful rollout with var.redn.
			2592 games, Mersenne Twister dice gen. with seed 850628571 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	13/7	+0.522 ( -0.013)
			0.759 0.124 0.001 - 0.241 0.037 0.001 +0.605 +0.522 0.001 0.001 0.000 - 0.001 0.001 0.000 0.002 0.003
			Full cubeful rollout with var.redn.
			2592 games, Mersenne Twister dice gen. with seed 850628571 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

• A not-quite-standard holding game
  Timothy Chow -- Thursday, 11 March 2010, at 1:34 a.m.
  • A not-quite-standard holding game
    Chase -- Thursday, 11 March 2010, at 2:47 a.m.
  • A not-quite-standard holding game
    Havard Raddum -- Thursday, 11 March 2010, at 8:27 a.m.
    • A not-quite-standard holding game
      Stick -- Thursday, 11 March 2010, at 8:29 a.m.
      • A not-quite-standard holding game
        Havard Raddum -- Thursday, 11 March 2010, at 9:39 a.m.
  • A not-quite-standard holding game
    misja -- Thursday, 11 March 2010, at 10:59 a.m.
  • A not-quite-standard holding game
    Chuck Bower -- Thursday, 11 March 2010, at 10:56 p.m.
  • Rollout: A not-quite-standard holding game
    Timothy Chow -- Friday, 12 March 2010, at 4:53 p.m.
    • Rollout of holding-game variant
      Timothy Chow -- Sunday, 14 March 2010, at 8:37 p.m.