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Rollout of variant

Posted By: Timothy Chow
Date: Sunday, 22 August 2010, at 12:40 a.m.

In Response To: Rollout: Early double 5's after opponent has escaped: 42P-52S-66B-55? (Timothy Chow)

The rollout still favors making two points, but by a seemingly smaller margin.

At Nack's suggestion, I've also included below the 4-ply evaluation of the original position.

---

gnubg	137
tchow	158
Position ID: mLfBwQDg8+ABDA Match ID: cIkWADAAIAAA

#		Ply	Move	Equity
•	1	R	8/3(2) 6/1(2)	-0.484
			0.370 0.072 0.002 - 0.630 0.108 0.004 -0.297 -0.484 0.001 0.002 0.000 - 0.001 0.002 0.000 0.003 0.008
			Full cubeful rollout with var.redn.
			1296 games, Mersenne Twister dice gen. with seed 893965540 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	13/3(2)	-0.504 ( -0.019)
			0.363 0.070 0.003 - 0.637 0.099 0.004 -0.304 -0.504 0.001 0.001 0.000 - 0.001 0.002 0.000 0.003 0.007
			Full cubeful rollout with var.redn.
			1296 games, Mersenne Twister dice gen. with seed 893965540 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]

---

4-ply eval of original:

gnubg	137
tchow	160
Position ID: mLfBwQDg8+ABJA Match ID: cIkWADAAIAAA

#		Ply	Move	Equity
•	1	4	8/3(2) 6/1(2)	-0.617
			0.346 0.084 0.001 - 0.654 0.197 0.006
	2	4	13/3(2)	-0.653 ( -0.036)
			0.340 0.078 0.002 - 0.660 0.196 0.006

Messages In This Thread

• Early double 5's after opponent has escaped: 42P-52S-66B-55?
  Timothy Chow -- Thursday, 19 August 2010, at 10:55 p.m.
  • Early double 5's after opponent has escaped: 42P-52S-66B-55?
    Chuck Bower -- Friday, 20 August 2010, at 12:13 a.m.
  • Early double 5's after opponent has escaped: 42P-52S-66B-55?
    lenny -- Friday, 20 August 2010, at 4:48 a.m.
  • Early double 5's after opponent has escaped: 42P-52S-66B-55?
    Matt Cohn-Geier -- Friday, 20 August 2010, at 2:34 p.m.
  • Early double 5's after opponent has escaped: 42P-52S-66B-55?
    Nack Ballard -- Friday, 20 August 2010, at 9:28 p.m.
    • Early double 5's after opponent has escaped: 42P-52S-66B-55?
      neilkaz -- Saturday, 21 August 2010, at 12:01 a.m.
  • Rollout: Early double 5's after opponent has escaped: 42P-52S-66B-55?
    Timothy Chow -- Friday, 20 August 2010, at 11:52 p.m.
    • 42P-52S-66B-55, and 51S-52S-21@-66B-55 (variant)
      Nack Ballard -- Saturday, 21 August 2010, at 1:51 a.m.
      • 42P-52S-66B-55, and 51S-52S-21@-66B-55 (variant)
        Timothy Chow -- Saturday, 21 August 2010, at 2:53 a.m.
        • Eval/rollout comparisons
          Nack Ballard -- Saturday, 21 August 2010, at 9:01 a.m.
      • 42P-52S-66B-55, and 51S-42P-21@-66B-55 (correction)
        Nack Ballard -- Thursday, 26 August 2010, at 9:52 p.m.
    • Rollout of variant
      Timothy Chow -- Sunday, 22 August 2010, at 12:40 a.m.
      • Rollout of variant
        Nack Ballard -- Sunday, 22 August 2010, at 3:45 a.m.