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Bot backgame comparison Redux

Posted By: Michael Depreli
Date: Monday, 14 December 2009, at 3:38 p.m.

Here's the position I posted a while back but hopefully with the correct entries now plus I have some reasonable rollouts done.

I wanted to see how well bots understanding of timing and recirculation in backgames had progressed from JF up to XG and whether it was better than humans.

The table lists the bots' default choices when using Huge / World Class search spaces which would typically be used in rollouts however evaluating all moves did in some instances change the top play.

Which bot do you think understands this position best?
Do you agree with their choices at all or do you have an alternative play?
How many of their choices will the rollouts overturn?
If the rollouts overturn too many, can we even trust the rollouts at all?

I'll leave it a couple of days before I post the rollouts. In the meantime see if you can work out which plays came out top in the rollouts.

Blue On Roll White 111 Blue 169 Position ID: bNsGKgCqHWgANg Match ID: UQkAAAAAAAAA

Roll XG 3-Ply GNUBG 2-Ply Snowie 3-Ply BGB 3-Ply JF 41 12/11* 11/7 12/8* 6/5 12/8 4/3 12/8/7 12/8 5/4 33 13/10*(2) 10/7 6/3 13/10*/4 6/3 13/10*/4 12/9* 13/10*(2) 10/7(2) 13/10*/4 6/3 11 13/12 6/4 3/2 13/12(2) 6/4 12/11*/10*/9* 3/2 13/12(2) 6/4 12/11*/10*/9* 3/2 21 12/10* 6/5 13/12 6/4 5/3 5/4 13/12 6/4 12/10* 3/2 31 12/9* 9/8 6/5 6/3 12/9*/8 6/3 13/12 12/9* 4/3 44 13/9* 12/8 5/1 13/9*/5 13/9 12/8 13/9*(2) 12/4 13/9*(2) 12/4 12/4 6/2 5/1 32 12/9* 9/7 6/4 6/3 12/9* 6/4 6/4 6/3 12/9* 6/4 51 13/8 6/5 13/8 13/12 12/7 4/3 13/8 13/12 13/8 13/12 43 12/8 6/3 12/8 6/3 12/8 6/3 12/5 12/8 6/3 61 13/12 13/7 13/12 13/7 13/12 13/7 13/12 13/7 12/5 53 13/8 6/3 12/7 6/3 12/4 12/4 12/4 22 13/11*/9* 12/10* 6/4 13/11*/9* 12/10* 6/4 13/11*/9* 12/10* 6/4 6/4(2) 5/3 4/2 13/11*/9* 12/10* 6/4 64 13/3 13/7 12/8 13/7 12/8 12/2 12/2 42 6/4 6/2 12/8 6/4 12/8 6/4 12/8 6/4 12/8 6/4 52 13/8 6/4 12/7 6/4 12/7 6/4 12/7 6/4 12/7 6/4 62 13/7 6/4 12/4 12/4 12/4 12/4 63 13/4 12/3 12/3 12/3 12/3 54 13/4 12/3 12/3 12/3 12/3 65 13/7 13/8 13/7 13/8 13/7 13/8 13/7 13/8 12/1 55 13/3 13/8 12/7 13/3 13/8 12/7 13/3 13/8 12/7 13/3 13/8 12/7 13/3 13/8 12/7 66 13/1 13/7 12/6 13/1 13/7 12/6 13/1 13/7 12/6 13/1 13/7 12/6 13/1 13/7 12/6

Messages In This Thread

• Bot backgame comparison Redux
  Michael Depreli -- Monday, 14 December 2009, at 3:38 p.m.
  • Bot backgame comparison Redux
    Dan Pelton -- Monday, 14 December 2009, at 4:30 p.m.
    • Bot backgame GNU 41 Should Be 12/8 6/5 (No Hit) Typo
      Michael Depreli -- Monday, 14 December 2009, at 4:34 p.m.
  • Bot backgame comparison Redux
    Phil Simborg -- Monday, 14 December 2009, at 7:10 p.m.
    • Bot backgame comparison Redux
      Michael Depreli -- Monday, 14 December 2009, at 8:25 p.m.
      • Bot backgame comparison Redux
        Timothy Chow -- Monday, 14 December 2009, at 10:51 p.m.
  • Bot backgame comparison Redux
    Timothy Chow -- Thursday, 17 December 2009, at 2:14 a.m.
  • Bot backgame comparison Redux
    Daniel Murphy -- Thursday, 17 December 2009, at 3:18 a.m.
    • Bot backgame comparison Redux
      Timothy Chow -- Thursday, 17 December 2009, at 3:42 a.m.
      • Bot backgame comparison Redux
        Daniel Murphy -- Saturday, 19 December 2009, at 3:45 a.m.