BGonline.org Forums

XG 1-ply strength ?

Posted By: eXtreme Gammon
Date: Friday, 20 January 2012, at 4:19 p.m.

In Response To: XG 0ply strength ? (MaX)

XG2 in 1-ply plays at 2.06 PR (2.76 for cube, 1.94 for checker).

for comparison XG1 in 1-ply plays at 2.87 PR (4.42 for cube, 2.70 for checker).

for regular unlimited game (with cube) that translate into XG2 1-ply getting 0.0535 ppg (26.7 Elo difference) against XG1 1-ply.

I just ran a test this morning for cubeless unlimited games and here is the raw result:
XG_V2=65717 XG_V1=63285 Games=100000 - ppg=0.024 - delo=12

I do not have the number for GnuBG so I cannot answer your question, but maybe someone (Michael Petch?) have the numbers for GnuBG 0-ply. However, XG1 was close to Gnubg (in 3-ply 0.89 PR vs 1.10 PR)

Note that I cannot get the proper PR using the Depreli study as XG (1 or 2) 1-ply makes many mistakes that were not rolled. I got these number from my own data where all the moves are considered (1296 3-ply RO for all the differences for 2-ply and stronger, and for 1-ply using XGR++ to get the error)

Messages In This Thread

• XG 0ply strength ?
  MaX -- Friday, 20 January 2012, at 10:14 a.m.
  • XG 0ply strength ?
    Michael Depreli -- Friday, 20 January 2012, at 10:54 a.m.
    • XG 0ply strength ?
      MaX -- Friday, 20 January 2012, at 2:18 p.m.
      • XG 1-ply strength ?
        eXtreme Gammon -- Friday, 20 January 2012, at 4:19 p.m.
        • XG 1-ply strength ?
          Michael Depreli -- Saturday, 21 January 2012, at 2:02 p.m.
          • XG 1-ply strength ?
            Stick -- Saturday, 21 January 2012, at 4:56 p.m.
            • XG 1-ply strength ?
              Klaus Evers -- Thursday, 26 January 2012, at 12:25 a.m.
              • XG 1-ply strength ?
                Stick -- Thursday, 26 January 2012, at 6:19 p.m.