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XG grading perplexity

Posted By: Simon Knight
Date: Wednesday, 29 August 2012, at 4:51 a.m.

In Response To: XG grading perplexity (Simon Knight)

Thanks to Iancho Hristov's ranking table, I've been able to answer my own question. XG calibrates 'world champion' as a PR of 0.0. However the best living player (leaving aside speculation that he is a human variant of XG) attains a PR of circa 2.5. Therefore PR is mis-calibrated de facto, so all the Elo ratings XG derives from PR are bound to be inaccurate. As PR has replaced Elo as the universal measure of skill this doesn't matter very much, but it's still an odd mistake to have made in the first place.

Messages In This Thread

• XG grading perplexity
  Simon Knight -- Sunday, 26 August 2012, at 3:35 a.m.
  • XG grading perplexity
    Simon Knight -- Wednesday, 29 August 2012, at 4:51 a.m.
    • XG grading perplexity
      Leonardo Jerkovic -- Wednesday, 29 August 2012, at 10:37 a.m.
      • XG grading perplexity
        Simon Knight -- Wednesday, 29 August 2012, at 12:53 p.m.
        • XG grading perplexity
          Bob Koca -- Wednesday, 29 August 2012, at 4:37 p.m.
          • XG grading perplexity
            Simon Knight -- Thursday, 30 August 2012, at 12:16 a.m.
            • XG grading perplexity
              Bob Koca -- Thursday, 30 August 2012, at 1:50 a.m.
          • XG grading perplexity
            niuniuch -- Thursday, 30 August 2012, at 8:12 a.m.
            • XG grading perplexity
              Casper van der Tak -- Thursday, 30 August 2012, at 8:20 a.m.
              • XG grading perplexity
                niuniuch -- Thursday, 30 August 2012, at 8:38 a.m.
                • XG grading perplexity
                  Casper van der Tak -- Thursday, 30 August 2012, at 9:28 a.m.
            • XG grading perplexity
              Timothy Chow -- Thursday, 30 August 2012, at 6:26 p.m.
              • XG grading perplexity
                Daniel Murphy -- Thursday, 30 August 2012, at 7:17 p.m.