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21$-61P-31E-61Z-64D-62 – Index to Rollouts

Posted By: Taper_Mike
Date: Friday, 7 November 2014, at 9:03 p.m.

In Response To: Trivial 62 to play ;) (Tenland)


1O1O ' '2X3X2X3X ' ' '3O

1X ' '1X '5O3O2O ' ' '3X
21$-61P-31E-61Z-64D-62
Position ID: sNvBASLgu8EBKA Match ID: cAkLAAAAAAAE

# Ply Move Equity
• 1 R 24/16 -0.553243
0.3744150.0810630.002881-0.6255850.2029850.006316 -0.376527 -0.553243
0.0007510.0005820.000057-0.0007510.0011470.000123 0.001592 0.002942
Truncated cubeful rollout (depth 5) with var.redn.
360 games, Mersenne Twister dice gen. with seed 762346872 and quasi-random dice
Play: world class 2-ply cubeful prune [world class]
keep the first 0 0-ply moves and up to 8 more moves within equity 0.16
Skip pruning for 1-ply moves.
Cube: 2-ply cubeful prune [world class]
Different evaluations after 2 plies:
Play: 1-ply cubeful prune
keep the first 0 0-ply moves and up to 8 more moves within equity 0.16
Cube: 2-ply cubeful prune [world class]
2 R 23/15 -0.563849 ( -0.010606)
0.3676160.0901490.003196-0.6323840.1916700.006825 -0.369918 -0.563849
0.0007640.0006540.000079-0.0007640.0014520.000108 0.001763 0.003344
Truncated cubeful rollout (depth 5) with var.redn.
360 games, Mersenne Twister dice gen. with seed 762346872 and quasi-random dice
Play: world class 2-ply cubeful prune [world class]
keep the first 0 0-ply moves and up to 8 more moves within equity 0.16
Skip pruning for 1-ply moves.
Cube: 2-ply cubeful prune [world class]
Different evaluations after 2 plies:
Play: 1-ply cubeful prune
keep the first 0 0-ply moves and up to 8 more moves within equity 0.16
Cube: 2-ply cubeful prune [world class]
3 R 23/21 13/7 -0.607892 ( -0.054650)
0.3488690.0885180.003404-0.6511310.1974450.008377 -0.416163 -0.607892
0.0006920.0010260.000110-0.0006920.0013960.000164 0.001544 0.002837
Truncated cubeful rollout (depth 5) with var.redn.
360 games, Mersenne Twister dice gen. with seed 762346872 and quasi-random dice
Play: world class 2-ply cubeful prune [world class]
keep the first 0 0-ply moves and up to 8 more moves within equity 0.16
Skip pruning for 1-ply moves.
Cube: 2-ply cubeful prune [world class]
Different evaluations after 2 plies:
Play: 1-ply cubeful prune
keep the first 0 0-ply moves and up to 8 more moves within equity 0.16
Cube: 2-ply cubeful prune [world class]


Annotation
Truncated Rollout by Taper_Mike
2014-Nov-07
GNU Backgammon 1.04.000-mingw
21$-61P-31E-61Z-64D-62-n-tm.sgf
n[r R11 Z55] '/0.360t

21$-61P-31E-61Z-64D-62 — Unlimited Games
Bot Seed Equity Nacbracs Link
GnuBg 1.04 2-ply 762346872 –553.243 n[r R11 Z55] '/0.360t Taper_Mike (above)
XG 2.10 3-ply, Cubes: XGR 1 –554 n[r R17] "<=1 Thomas Tenland
XG 2.19.206.pre-release 3-ply, Cubes: XGR 51848530 –552 n[r R25] "<=7 Stick
XG 2.10 XGR++ Eval [XGR++ seed] –550.9 n[r R14 Z69] "&e Taper_Mike

Key: R = Run [23/15], r = run [24/16], Z = Reverse split [23/21, 13/7]

Nactation Tutorial • Explanation of nacbracs • Nacbracs for cube actions

As did the other posters, I would have run to the 15pt here.

In addition to the things already mentioned, I noted that staying back on the 24pt leaves a less desirable target in the rear quadrant.

Mike

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