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Rollout

Posted By: Stick
Date: Saturday, 19 May 2007, at 5:28 p.m.

In Response To: Double Fives - Score based (Stick)

At the time I did, of course, consider 23/13 6/1*(2) and was surprised when GNU preferred that play opposed to the blitzing play on 2 ply (I believe it did, either way it was extremely close). Fortunately for me & my play the rollout shows that since I can still get valued from an undoubled gammon it's definitely the correct play. I'm also not convinced this may not be correct even @ DMP. Sometimes the best way to win a game is still blitzing. Here for example you start by unstacking your 6 pt., which is a good thing, you put your opponent on the bar against a 3 pt. board, another good thing, and your opponent has no board yet and will have an awkward time playing rolls, usually offering up another blot somewhere along the lines and your board will come in handy. Obviously you leave yourself a bit 'commited' to one type of game, the blitz, and break your 8 pt. & leave 4 blots about but only 2 of the 4 are important.

The score (after 8 games) is: Stick 11, Readers 4 (match to 13 points)

Move number 3: Stick to play 55

Stick162


1O ' ' ' '5X '3X1X ' '6O

1X1X ' ' '5O '3O ' ' '4X

Readers156

Position ID: 4HPwAyDgc+EBKA Match ID: MIG2AbAAIAAA

• Stick moves 8/3(2) 6/1*(2)

# Ply Move Equity
1 R 8/3(2) 6/1*(2) +0.1834
0.56890.29400.0190-0.43110.09350.0037 +0.3680 +0.1834
0.00270.00720.0039-0.00270.00250.0006 0.0098 0.0144
Full cubeful rollout with var.redn.
546 games, Mersenne Twister dice gen. with seed 1063765996 and quasi-random dice
Play: 2-ply cubeful prune [world class]
keep the first 0 0-ply moves and up to 12 more moves within equity 0.16
Skip pruning for 1-ply moves.
Cube: 2-ply cubeful prune [world class]
2 R 23/13 6/1*(2) +0.1202 ( -0.0632)
0.56520.19980.0103-0.43480.08800.0027 +0.2548 +0.1202
0.00280.00760.0028-0.00280.00230.0007 0.0092 0.0139
Full cubeful rollout with var.redn.
546 games, Mersenne Twister dice gen. with seed 1063765996 and quasi-random dice
Play: 2-ply cubeful prune [world class]
keep the first 0 0-ply moves and up to 12 more moves within equity 0.16
Skip pruning for 1-ply moves.
Cube: 2-ply cubeful prune [world class]

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