Game #4
Open Division Final
San Mateo, California
15 December 1996
11 Point MatchBlake Sorem (Black) vs. Kevin Mansfield (White)
Score: 2 - 0Analysis by Ron Karr
Going into the final round of December's Backgammon by the Bay tournament, two players were left standing in the Open division: Kevin Mansfield, a finalist in last month's tournament, and Blake Sorem, recent winner of the Super 16 at the Gammon Associates tournament in Los Angeles. As we pick up the action, Blake has just won the first game to take a 2-0 lead.
![[START]](Images/b_start.gif)
The game was recorded on tape by Richard McIntosh and transcribed by Ron Karr.
Rollouts were made by Richard McIntosh, using JellyFish Analyzer 2.02. 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.
Except as noted below, parameter values for rollouts on moves were:
- level 5
- 7776 games (36x216)
- horizon 7
- seed 1215
Standard deviations of equity estimates were between 0.004 and 0.007.
Moves for plays 11a, 12a, and 15a were rolled out at level 6, with parameter values:
- level 6
- 1296 games (36x36)
- seed 1215
Standard deviations of equity estimates were between 0.008 and 0.009.
Parameter values for rollouts on cube decisions were:
- level 5
- 23328 games (36x648)
- full game
- seed 1215
- settlement limit 0.550
Copyright © 1996-2010 BackGammon By the Bay