Newsletter for 5 October 2004


Baseball playoffs start... October baseball lingers in the background as dice are rolled...

On Tuesday, 5 October 2004, the Backgammon Club of San Diego met.


Tournament News

14 people entered a 16-player main tournament and an 8-player overflow tournament on Tuesday night. We had the following tournament results:

Main Tournament (16 player bracket)
  • 1st place:  Jason Lee
    
  • 2nd place:  Adrian Costa
    
  • 3rd place:  Bruce Haight
    
  • Overflow Tournament (8 player bracket)
  • 1st place:  Bruce Discher
    
  • 2nd place:  Jon Vietor
    
  • Bruce Discher won the overflow tournament, his first tournament win at the BCSD. Congratulations, Bruce!


    Current Master Points Standings

     1. Sho Sengoku      94
     2. Bruce Haight     81
     3. Jason Lee        77
     4. Adrian Costa     66
     5. Tom Fahland      65
     6. Fred Kamgar      38
     6. Osman Guner      38
     8. Eric Sedehi      29
     9. Henry Chaboki    25
    10. Bruce Discher    18
    10. Cyrus Mobedshahi 18
    12. Mark Weiner      11
    13. Marcia Karen      9
    14. Ryan Knowles      8
    14. Ned Cross         8
    16. Kismet Hancer     6
    16. Greg Kopp         6
    18. Stan Krimerman    4
    18. Vito Volpetti     4
    20. Chris Rosin       3
    21. Jon Vietor        2
    22. Maira Costa       1
    22. Sam Mehri         1
    
    Jason Lee has closed to just four points of Bruce Haight for 2nd place overall. Adrian Costa passed Tom Fahland to reclaim 4th place in what is turning out to be quite a see-saw fight. Bruce Discher moved to a 10th place tie, and Jon Vietor scored points for the first time this year.

    The point leader at the end of the year will be named the BCSD Player of the Year, and the top 16 in the Master Point standings will be invited to the 2004 BCSD Tournament of Champions, to be held in early 2005.


    Problem of the Week

    +-24-23-22-21-20-19-+---+-18-17-16-15-14-13-+
    |2X '1X '1X '|   | ' ' ' ' ' '|
    |                   |   |                   |
    |                 | 1 |       2 5       |
    | ' ' '1O '2O|   | ' ' ' ' ' '|
    +--1--2--3--4--5--6-+---+--7--8--9-10-11-12-+

    Double Match Point. Pip counts: White 10, Black 16
    Position ID: kwAAABkAAAAAAA Match ID: cAk1AAAAAAAA


    Last Week's Problem of the Week

    +-24-23-22-21-20-19-+---+-18-17-16-15-14-13-+
    |1O ' ' ' '5X|   |1O3X2X ' '4O|
    |                   |   |                   |
    |                 | 1 |       1 6       |
    | '2O '1X1X4O|   | '2O '1O '3X|
    +--1--2--3--4--5--6-+---+--7--8--9-10-11-12-+

    Match to 3, tied 0-0. Pip counts: White 152, Black 148
    Position ID: 4HPDAQWGZ+JBIA Match ID: cIl4AAAAAAAA

    There's nothing else to do but hit twice! 10/4* 6/5* should be automatic. Not doing so gives White an good chance to make an anchor or an otherwise useful point. Right now, White's position is not terribly strong, but it only takes one good roll for White to start putting something together. Two checkers on the bar is strong, and if White doesn't do something good, a cube is imminent.

    When in doubt, hit. When still in doubt, hit twice.

    # Ply Move Equity
      1 4 10/4* 6/5* +0.180
      0.529 0.199 0.006 - 0.471 0.141 0.007  
      4-ply cubeful  
      2 4 24/18 6/5* +0.046 ( -0.134)
      0.506 0.139 0.003 - 0.494 0.119 0.003  
      4-ply cubeful  
      3 4 24/18 10/9 -0.052 ( -0.232)
      0.483 0.103 0.002 - 0.517 0.097 0.002  
      4-ply cubeful  
      4 4 24/23 10/4* -0.150 ( -0.329)
      0.468 0.134 0.005 - 0.532 0.157 0.006  
      4-ply cubeful  
      5 4 10/4*/3 -0.156 ( -0.336)
      0.467 0.133 0.004 - 0.533 0.157 0.006  
      4-ply cubeful  

    And the other problem:

    +-24-23-22-21-20-19-+---+-18-17-16-15-14-13-+
    |1O '1O3X '3X|   | '2X ' '1X5O|
    |                   |   |                   |
    |                 | 1 |       5 6       |
    | '2O2X '2O2O|   | '2O ' ' '4X|
    +--1--2--3--4--5--6-+---+--7--8--9-10-11-12-+

    Money Game. Pip counts: White 153, Black 153
    Position ID: OGfkAQzGZvABJA Match ID: cIkaAAAAAAAA

    22/11 is the right move for several reasons. First, Black gets better flexibility in his outfield. Also, Black does not wish to stack onto an already heavy midpoint. Finally, it will be harder for White to attack Black on the ace point, and remaining on the ace isn't significanly worse for escaping for Black.

    # Ply Move Equity
      1 R 22/11 -0.046
     
    0.5010.1010.004-0.4990.1350.004 -0.033 -0.046
    0.0000.0000.000-0.0000.0000.000 0.000 0.001
     
      Truncated cubeful rollout (depth 11) with var.redn.  
      46656 games, Mersenne Twister dice gen. with seed 1096646272 and quasi-random dice  
      Play: 0-ply cubeful [expert]  
      Cube: 0-ply cubeful [expert]  
      2 R 24/13 -0.093 ( -0.047)
     
    0.4950.0930.004-0.5050.1520.004 -0.069 -0.093
    0.0000.0000.000-0.0000.0000.000 0.000 0.001
     
      Truncated cubeful rollout (depth 11) with var.redn.  
      46656 games, Mersenne Twister dice gen. with seed 1096646272 and quasi-random dice  
      Play: 0-ply cubeful [expert]  
      Cube: 0-ply cubeful [expert]  
      3 4 13/8 13/7 -0.130 ( -0.084)
      0.472 0.146 0.005 - 0.528 0.171 0.008  
      4-ply cubeful  
      4 4 22/16 13/8 -0.133 ( -0.087)
      0.479 0.118 0.003 - 0.521 0.170 0.005  
      4-ply cubeful  
      5 4 24/18 13/8 -0.139 ( -0.092)
      0.482 0.129 0.005 - 0.518 0.184 0.006  
      4-ply cubeful  

    See you next week! Keep tossing those cubes,
    J. Lee

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