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Rollout: Making the best of an awkward roll

Posted By: Timothy Chow
Date: Sunday, 25 April 2010, at 4:22 a.m.

In Response To: Making the best of an awkward roll (Timothy Chow)

Over the board, I looked at 22/15, 22/18 4/1*, and 13/6. I eventually settled on the worst of these options, 13/6. A few months ago I identified one of my weaknesses as breaking anchor too readily. It seems that I have overcompensated and need to dial back a little. Breaking anchor is not so bad here because White is short of ammunition to attack and I have some decent defense—an equally strong board and two annoying (to White) outposts in the outfield. Also, being ahead in the race, I want to get those back checkers moving anyway. 13/6 leaves only one blot but even if I am not hit it doesn't help me with my goal of getting my four rear checkers around. 22/18 4/1* is a bit better but still leaves too many return shots.

gnubg163


 ' '2O2X2X3X '2X2O ' '2O

1X '2X3O2O2O2O1X ' ' '2X

tchow150

Position ID: 2M5gCCa4bWAMDA Match ID: cAkOABAAAAAA

# Ply Move Equity
1 R 22/15 +0.308
0.5760.1980.014-0.4240.1490.008 +0.206 +0.308
0.0020.0020.001-0.0020.0020.001 0.005 0.012
Full cubeful rollout with var.redn.
1296 games, Mersenne Twister dice gen. with seed 854158534 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 22/18 4/1* +0.130 ( -0.177)
0.5390.1830.009-0.4610.1720.011 +0.086 +0.130
0.0020.0020.001-0.0020.0020.001 0.006 0.014
Full cubeful rollout with var.redn.
1296 games, Mersenne Twister dice gen. with seed 854158534 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]
3 R 13/6 +0.088 ( -0.220)
0.5150.1810.011-0.4850.1510.008 +0.062 +0.088
0.0020.0020.001-0.0020.0020.000 0.005 0.011
Full cubeful rollout with var.redn.
1296 games, Mersenne Twister dice gen. with seed 854158534 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]

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