よい子のレスポンスデータ集> 35 >35-24

35>**

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      X to play (4 2)
      +24-23-22-21-20-19-------18-17-16-15-14-13-+
      | X     O        O |   |     O           X |
      | X     O        O |   |     O           X |
      |                O |   |                 X | S
      |                O |   |                 X | n
      |                  |   |                 X | o
      |                  |BAR|                   | w
      |                X |   |                 O | i
      |                X |   |                 O | e
      |                X |   |     X           O |
      | O              X |   |     X           O |
      | O              X |   |     X           O |
      +-1--2--3--4--5--6--------7--8--9-10-11-12-+
      Pipcount  X: 167  O: 159  X-O: 0-0/Money (1)
      CubeValue:  1
    
      1. 3  8/4 6/4                            Eq.: -0.002
                   1.0%  16.2%  49.7%    50.3%  15.9%   0.9%
       Rollout settings:
    
                      Truncated rollout, depth 9,
                      360 games (equiv. 131607 games),
                      played 3-ply (precise),
                      random seed, without race database.
    

    Note:Snowie4によると、ポストクロフォードでフリードロップがある場合、35>24の後はテイクになります。
    O on rollのキューブアクションは以下の通り。

     Match to 2. Score X-O: 1-0
      O on roll, cube action
      +-1--2--3--4--5--6--------7--8--9-10-11-12-+
      | X     O        O |   |     O           X |
      | X     O        O |   |     O           X |
      |                O |   |                 X | S
      |                O |   |                 X | n
      |                  |   |                 X | o
      |                  |BAR|                   | w
      |                  |   |                 O | i
      |                X |   |                 O | e
      |                X |   |                 O |
      | O        X     X |   |     X           O |
      | O        X     X |   |     X           O |
      +24-23-22-21-20-19-------18-17-16-15-14-13-+
      Pipcount  X: 161  O: 159  X-O: 1-0/2 (1)
      CubeValue:  1
     Rollout      Money equity: -0.002
          1.0%  16.2%  49.7%    50.3%  15.9%   0.9%
          95% confidence interval:
             - money cubeless eq.: -0.002 ア0.007.
          Rollout settings:
             Truncated rollout, depth 9,
             360 games (equiv. 131607 games),
             played 3-ply (precise),
             random seed, without race database.
           1.  Double, take      0.989  
           2.  No double         0.905  (-0.083)
           3.  Double, pass      1.000  (+0.011)
     Proper cube action: Double, take     
    
    

    07/09/08追記
    GNUで深くまわした結果は以下の通り。
    take/pass のボーダーと考えておくのが適当か

    Cube analysis
    Rollout cubeless equity +0.173 (Money: +0.010)
    
    Cubeful equities:
    1. Double, take     +0.992
    2. Double, pass     +1.000 ( +0.008)
    3. No double      +0.919 ( -0.073)
    Proper cube action: Double, take
    Rollout details:
    Centered 1-cube:
     0.499 0.185 0.026 - 0.501 0.175 0.025 CL +0.173 CF +0.919
    [0.011 0.007 0.003 - 0.011 0.006 0.003 CL  0.005 CF  0.041]
    Player pescini owns 2-cube:
     0.498 0.216 0.048 - 0.502 0.197 0.040 CL +0.992 CF +0.992
    [0.002 0.006 0.004 - 0.002 0.006 0.005 CL  0.009 CF  0.009]
    Full cubeful rollout with var.redn.
    1296 games, Mersenne Twister dice gen. with seed 1070332803 and quasi-random dice
    Stop when best play is enough JSDs ahead: limit 1.96 (min. 288 games)
    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]
    
    2007-09-06 もち君からの投稿に拠って改訂
    2007-09-08 改訂
    Masanori Coda(coda@backgammon.gr.jp)