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Googus and Gallant Rollout

Posted By: Daniel Murphy
Date: Tuesday, 28 December 2010, at 3:37 p.m.

In Response To: Googus and Gallant Rollout (adambulldog)

Your settings appear to be the default for a Gnubg 2-ply rollout, and they're fine for nearly all positions.

2-ply, world class (8 0-ply moves within 0.16 and skip 1-ply pruning), cubeful prune, full, variance reduction and random dice.

The speed of Gnubg and today's computers being what they are, I could recommend that you select 2-ply "supremo" instead of "world class," for a larger 0-ply search filter, but in nearly all positions the results will be nearly the same.

There should no longer be enough time saving to bother selecting, instead, a smaller "narrow" or "tiny" filter, but if you did, the results would also be nearly the same for most positions.

I can't recommend 3- or 4-ply checker play -- too slow for unproven improvement in results. And very rarely I've used 3-ply cube, in (1) positions where ND is erronously reported as too good and I care about that, and (2) in (usually lopsided) positions in which 3-ply evaluation seems ok but 2-ply evaluation is obviously wrong, and immediate cube decisions are likely to be important.

Messages In This Thread

• Rollouts requested
  Timothy Chow -- Sunday, 26 December 2010, at 2:53 p.m.
  • Googus and Gallant Rollout
    adambulldog -- Sunday, 26 December 2010, at 5:06 p.m.
    • Googus and Gallant Rollout
      Daniel Murphy -- Tuesday, 28 December 2010, at 3:37 p.m.
  • Goofus and Gallan Part Deux Rollout
    adambulldog -- Sunday, 26 December 2010, at 6:17 p.m.