Game #11
Open Division Final
San Mateo, California
20 July 1997
11 Point MatchRon Karr (Blue) vs. Daniel Murphy (White)
Score: 7 - 6Analysis by Beth Skillman and Richard McIntosh
A note to our readers: In bringing these annotated matches to you, BACKGAMMON BY THE BAY has been graced by the largesse of numerous of backgammon's luminaries, who have shared their time and efforts to bring light to darkness. In order to present a varied outlook, and for all those good things one can say about freshness, we have recently been scouting around for participants in our annotated games endeavors. More than once folks whom we asked to be analysts expressed reluctance to do so because they were "only an intermediate player." In the belief that beginning players can learn a lot from intermediate players, and that we intermediate players can learn a lot from each other, we are putting our reputations where our mouths are: BACKGAMMON BY THE BAY proudly presents commentary this month by Beth Skillman and Richard McIntosh.
BGBB's regular bimonthly analyst, Ron Karr, continues his cooperative ways by playing in the finals during a month he wasn't scheduled to be the game analyst. Daniel Murphy bids adieu to San Francisco in style, in his last California tourney before taking up Danish residency. This match is a fine illustration of why Ron and Daniel led the pack in the 1997 BGBB Brownie Points race (although Ron started breathing a bit easier when Daniel's move to Denmark limited his participation in the Brownie Points quest).
![[START]](Images/b_start.gif)
The game was recorded on tape and transcribed by Richard McIntosh.
Rollouts were made by Richard McIntosh, using JellyFish Analyzer 3.0. Rollout results show equities for the player on move. Candidate plays were better than or within 0.100 equity of the actual plays, evaluated at level 7.
Parameter values for rollouts on moves were:
- level 5
- 7776 games (36x216)
- horizon 7
- seed 720
Standard deviations of equity estimates were between 0.003 and 0.008, typically 0.004.
Parameter values for level 5 rollouts on cube decisions were:
- level 5
- 23328 games (36x648)
- full game
- seed 720
- settlement limit 0.550
Parameter values for level 6 rollouts on cube decisions were:
- level 6
- 216 games (36x6)
- full game
- seed 720
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