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BGonline.org Forums
Simple Example
Posted By: Stick In Response To: Example for clarification (Maik Stiebler)
Date: Thursday, 23 February 2012, at 10:15 a.m.
Just this past weekend in PGH during my doubles match there was a racing cube where we were doubled and both myself and my partner knew it was a technical clear take. UBK wanted to take without question, thought the take was too big. I was very unsure given that I thought we had a 3 PR or 100 elo difference in the match. The take ended up being about .120 I think and I would have lost no sleep whatsoever if we would have dropped it. MCG said at the time that he probably would have passed it also.
Below is a simple race, the first with a regular MET and the second with the jacobs100 loaded. A mundane example and if you can't imagine passing a meager 0.144 well then ... you have issues.
The score (after 0 games) is: gnubg 0, Stick 0 (match to 7 points)
Move number 2: Stick on roll, cube decision?
gnubg 49
Stick 45 Position ID: 1bsBAKC6GwAAAA Match ID: cAngAAAAAAAE
Cube decision Rollout cubeless equity +0.509 (Money: +0.509) Cubeful equities: 1. Double, take +0.880 Â 2. Double, pass +1.000 +0.120 3. No double +0.772 -0.109 Proper cube action: Double, take Rollout details
 Win W g W bg  Lose L g L bg Cubeless Cubeful Centered 1-cube 0.754 0.000 0.000 - 0.246 0.000 0.000 +0.509 +0.772 Standard error 0.000 0.000 0.000 - 0.000 0.000 0.000 0.000 0.003 Player gnubg owns 2-cube 0.754 0.000 0.000 - 0.246 0.000 0.000 +1.025 +0.880 Standard error 0.000 0.000 0.000 - 0.000 0.000 0.000 0.001 0.004 Full cubeful rollout with var.redn. 108 games, Mersenne Twister dice gen. with seed 912940617 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] Â
The score (after 0 games) is: gnubg 0, Stick 0 (match to 7 points)
Move number 2: Stick on roll, cube decision?
gnubg 49
Stick 45 Position ID: 1bsBAKC6GwAAAA Match ID: cAngAAAAAAAE
Cube decision Rollout cubeless equity +0.509 (Money: +0.509) Cubeful equities: 1. Double, pass +1.000 Â 2. Double, take +1.028 +0.028 3. No double +0.828 -0.172 Proper cube action: Double, pass Rollout details
 Win W g W bg  Lose L g L bg Cubeless Cubeful Centered 1-cube 0.754 0.000 0.000 - 0.246 0.000 0.000 +0.509 +0.828 Standard error 0.000 0.000 0.000 - 0.000 0.000 0.000 0.000 0.003 Player gnubg owns 2-cube 0.754 0.000 0.000 - 0.246 0.000 0.000 +1.136 +1.028 Standard error 0.000 0.000 0.000 - 0.000 0.000 0.000 0.001 0.004 Full cubeful rollout with var.redn. 108 games, Mersenne Twister dice gen. with seed 912940617 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] Â
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