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WSOB #4 RO results and comments

Posted By: bob koca
Date: Thursday, 21 August 2008, at 3:46 a.m.

In Response To: WSOB #4 (neilkaz)

Everyone got it wrong. I played 24/20 OTB. Stick and Matt think it is clear and Neil also likes it but said close. Long RO though says 13/9 is clear.

It makes sense to me now that I look at it more. There is significant duplication in that the hit usually precludes making the 20 point anchor. Suppose that the anchor is not made and the checker is not hit. You are glad you made the play 13/9. This tactical considerration outwieghs the need to get the back checkers moving, they can be moved up later.

Might be interesting to do a money Snowie rollout. Post here if you do so to avoid duplicating effort.

Bob Koca

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1. Rollout bar/20 13/9 Eq.: -0.120359

0.479986 0.118086 0.015004 - 0.520014 0.185484 0.032843 CL -0.120270 CF -0.120359

[0.001870 0.001770 0.001427 - 0.001870 0.002017 0.002157 CL 0.006875 CF 0.013435]

Full cubeful rollout with var.redn.

4851 games, Mersenne Twister dice gen. with seed 831215469 and quasi-random dice

Stop when best play is enough JSDs ahead: limit 3.1 (min. 72 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]

2. Rollout bar/20 24/20 Eq.: -0.154583 ( -0.034224)

0.470035 0.103690 0.009133 - 0.529965 0.158824 0.017098 CL -0.126410 CF -0.154583

[0.001343 0.001522 0.000722 - 0.001343 0.001688 0.001269 CL 0.004235 CF 0.008587]

Full cubeful rollout with var.redn.

4849 games, Mersenne Twister dice gen. with seed 831215469 and quasi-random dice

Stop when best play is enough JSDs ahead: limit 3.1 (min. 72 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]

3. Rollout bar/20 6/2* Eq.: -0.190407 ( -0.070048)

0.479019 0.115372 0.012477 - 0.520981 0.213195 0.039096 CL -0.169566 CF -0.190407

[0.002793 0.002090 0.001077 - 0.002793 0.003059 0.002804 CL 0.012566 CF 0.018836]

Full cubeful rollout with var.redn.

4150 games, Mersenne Twister dice gen. with seed 831215469 and quasi-random dice

Stop when best play is enough JSDs ahead: limit 3.1 (min. 72 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]

Messages In This Thread

• WSOB #4
  bob koca -- Friday, 15 August 2008, at 4:47 a.m.
  • WSOB #4
    Stick -- Friday, 15 August 2008, at 4:56 a.m.
    • WSOB #4
      Matt Cohn-Geier -- Friday, 15 August 2008, at 5:13 a.m.
  • WSOB #4
    neilkaz -- Tuesday, 19 August 2008, at 5:53 p.m.
    • WSOB #4 RO results and comments
      bob koca -- Thursday, 21 August 2008, at 3:46 a.m.
      • WSOB #4 RO results and comments
        Stick -- Thursday, 21 August 2008, at 4:13 a.m.
        • WSOB #4 RO results and comments
          Neil Robins -- Thursday, 21 August 2008, at 8:05 a.m.
      • WSOB #4 RO results and comments
        Matt Cohn-Geier -- Thursday, 21 August 2008, at 9:37 p.m.
      • WSOB #4 RO results and comments
        David Montgomery -- Friday, 22 August 2008, at 7:10 p.m.