Newsletter for 10 August 2004


There Are No Holidays in August

On Tuesday, 10 August 2004, the Backgammon Club of San Diego met. Ryan was there to defend his title.


Tournament News

9 people entered a 16-player tournament on Tuesday night. We had the following tournament results:

Main Tournament (16 player bracket)
  • 1st place:  Tom Fahland / Fred Kamgar (split)
    
  • 3rd place:  Adrian Costa / Eric Sedehi (split)
    

  • Tournament Match Analyses

    Two BCSD matches were recorded on Tuesday. The final game in a second round match between Tom Fahland and Jason Lee was recorded by Sho Sengoku. You can see the analysis of the game using GNU.

    Then, the entirety of the semifinals between Tom Fahland and Adrian Costa was recorded by Jason Lee and Sho Sengoku. You can see the analysis of the match using GNU.

    Sho spent the painstaking time to reconstruct the matches from the manual recordings. He had to reconstruct quite a bit. Good job, Sho!


    Current Master Points Standings

     1. Sho Sengoku      82
     2. Jason Lee        57
     3. Bruce Haight     56
     4. Tom Fahland      49
     5. Adrian Costa     46
     6. Osman Guner      37
     7. Fred Kamgar      35
     8. Eric Sedehi      25
     9. Cyrus Mobedshahi 18
    10. Henry Chaboki    12
    11. Bruce Discher    10
    12. Mark Weiner       9
    12. Marcia Karen      9
    14. Ryan Knowles      8
    14. Ned Cross         8
    16. Greg Kopp         6
    17. Vito Volpetti     4
    18. Chris Rosin       3
    19. Maira Costa       1
    19. Sam Mehri         1
    

    Tom Fahland passed Adrian Costa to move into 4th place overall. Tom is now within striking distance of second place.

    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

    Another position from online play:

    +-24-23-22-21-20-19-+---+-18-17-16-15-14-13-+
    |2X3X2X2X1O2X|   | ' ' ' ' '2O|
    |                   |   |                   |
    |                 | 1 |                 |
    | ' '2X '3O4O|   |2O3O ' ' '2X|
    +--1--2--3--4--5--6-+---+--7--8--9-10-11-12-+

    Match to 11, tied 0-0. Black on roll. Pip counts: White 104, Black 123
    Position ID: u82AAQxwbwcDAg Match ID: cAlgAQAAAAAA


    Last Week's Problem of the Week

    A position from online play:

    +-24-23-22-21-20-19-+---+-18-17-16-15-14-13-+
    | '1X2X1O1O3X|   | '3X ' ' '3O|
    |                   |   |                   |
    |                 | 1 |       1 4       |
    | ' ' ' '1X5O|   |2O3O ' ' '5X|
    +--1--2--3--4--5--6-+---+--7--8--9-10-11-12-+

    Black leads 1-0 in a match to 3. Pip counts: White 135, Black 148
    Position ID: GufgAwLg28EBBQ Match ID: cIlwAAAACAAA

    Here, GNU likes outfield control and an attack over anchoring. 21/20 leaves Black with nothing much to do with the four.

    # Ply Move Equity
      1 R 20/16 6/5* -0.338
     
    0.4800.1160.004-0.5200.1650.006 -0.129 -0.338
    0.0000.0000.000-0.0000.0000.000 0.001 0.002
     
      Truncated cubeful rollout (depth 11) with var.redn.  
      7776 games, Mersenne Twister dice gen. with seed 1092710528 and quasi-random dice  
      Play: 0-ply cubeful [expert]  
      Cube: 0-ply cubeful [expert]  
      2 R 21/20 8/4 -0.354 ( -0.016)
     
    0.4430.0770.002-0.5570.0530.002 -0.082 -0.354
    0.0000.0000.000-0.0000.0000.000 0.001 0.002
     
      Truncated cubeful rollout (depth 11) with var.redn.  
      7776 games, Mersenne Twister dice gen. with seed 1092710528 and quasi-random dice  
      Play: 0-ply cubeful [expert]  
      Cube: 0-ply cubeful [expert]  
      3 R 13/9 6/5* -0.365 ( -0.027)
     
    0.4760.1320.005-0.5240.1750.011 -0.139 -0.365
    0.0000.0000.000-0.0000.0000.000 0.002 0.002
     
      Truncated cubeful rollout (depth 11) with var.redn.  
      7776 games, Mersenne Twister dice gen. with seed 1092710528 and quasi-random dice  
      Play: 0-ply cubeful [expert]  
      Cube: 0-ply cubeful [expert]  
      4 R 21/20 6/2 -0.386 ( -0.048)
     
    0.4370.0770.002-0.5630.0580.002 -0.101 -0.386
    0.0000.0000.000-0.0000.0000.000 0.001 0.002
     
      Truncated cubeful rollout (depth 11) with var.redn.  
      7776 games, Mersenne Twister dice gen. with seed 1092710528 and quasi-random dice  
      Play: 0-ply cubeful [expert]  
      Cube: 0-ply cubeful [expert]  
      5 R 21/20 13/9 -0.404 ( -0.067)
     
    0.4370.0830.002-0.5630.0630.002 -0.105 -0.404
    0.0000.0000.000-0.0000.0000.000 0.001 0.002
     
      Truncated cubeful rollout (depth 11) with var.redn.  
      7776 games, Mersenne Twister dice gen. with seed 1092710528 and quasi-random dice  
      Play: 0-ply cubeful [expert]  
      Cube: 0-ply cubeful [expert]  

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

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