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WC cube action - RO

Posted By: Daniel Murphy
Date: Saturday, 31 October 2009, at 10:03 p.m.

In Response To: WC cube action (Peter G.)

Here are two rollouts that are too short for paying much attention to absolute equities but should be long enough for confirming the take/pass decision.

According to Gnubg, then, the take decision depends on the MET used. Snowie evaluation and Gnubg 2- and 4-ply evaluations using Snowie MET say "take." Gnubg rollout with Snowie MET says "take." Gnubg 2- and 4-ply evaluations with G11 MET say "pass." Gnubg rollout with G11 MET says "pass."

Over the board, Mochizuki passed.

The score (after 0 games) is: Lars Trabolt (White) 15, Masayuki Mochizuki (Blue) 22 (match to 25 points). Lars Trabolt on roll, cube decision?

Lars Trabolt	139
Masayuki Mochizuki	156
Position ID: 2GbkASiwt8HBAA Match ID: MAEgA/AAsAAA

With Snowie MET:

Cube decision
Rollout cubeless equity		+0.4879	(Money: +0.4853)
Cubeful equities:
1.	Double, take	+0.9570
2.	Double, pass	+1.0000	+0.0430
3.	No double	+0.8666	-0.0904
Proper cube action:		Double, take
Rollout details
Win W g W bg Lose L g L bg Cubeless Cubeful Centered 1-cube 0.6755 0.2020 0.0081 - 0.3245 0.0726 0.0033 +0.4879 +0.8666 Standard error 0.0053 0.0042 0.0004 - 0.0053 0.0048 0.0007 0.0121 0.0210 Player Masayuki Mochizuki owns 2-cube 0.6820 0.2025 0.0028 - 0.3180 0.0625 0.0076 +0.9767 +0.9570 Standard error 0.0056 0.0056 0.0024 - 0.0056 0.0056 0.0026 0.0244 0.0257
Full cubeful rollout with var.redn.
131 games, Mersenne Twister dice gen. with seed 868252976 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]

With G11 MET:

Cube decision
Rollout cubeless equity		+0.5207	(Money: +0.5003)
Cubeful equities:
1.	Double, pass	+1.0000
2.	Double, take	+1.0914	+0.0914
3.	No double	+0.9182	-0.0818
Proper cube action:		Double, pass
Rollout details
Win W g W bg Lose L g L bg Cubeless Cubeful Centered 1-cube 0.6790 0.2085 0.0077 - 0.3210 0.0661 0.0078 +0.5207 +0.9182 Standard error 0.0046 0.0049 0.0006 - 0.0046 0.0064 0.0065 0.0119 0.0185 Player Masayuki Mochizuki owns 2-cube 0.6787 0.2235 0.0072 - 0.3213 0.0656 0.0068 +1.1233 +1.0914 Standard error 0.0063 0.0078 0.0015 - 0.0063 0.0068 0.0065 0.0267 0.0307
Full cubeful rollout with var.redn.
106 games, Mersenne Twister dice gen. with seed 868309645 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]

Messages In This Thread

• WC cube action
  Daniel Murphy -- Thursday, 29 October 2009, at 4:33 a.m.
  • WC cube action
    Christian Munk-Christensen -- Thursday, 29 October 2009, at 7:12 a.m.
    • WC cube action
      Peter G. -- Thursday, 29 October 2009, at 8:57 a.m.
      • WC cube action - RO
        Daniel Murphy -- Saturday, 31 October 2009, at 10:03 p.m.
  • WC cube action
    neilkaz -- Saturday, 31 October 2009, at 11:10 p.m.