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Soidog’s Blog


    • A two dimensional measure of chess performance

      The proposed two dimensional measure of chess performance has more precision and discrimination power than the scalar measure because it contains more information by virtue of the fact that it is true to the trinomial nature of chess game outcomes... | Read More

      • Jamalov
      • | Sep 24, 2014
      • | 318 views
      • | 5 comments
    • The Elo rating system is seriously flawed

      A two dimensional measure of chess performance is presented and it is shown to have more information and a greater power of discrimination than scalar measures because it does not rely on scoring. The scoring procedure used by scalar measures to r... | Read More

      • Jamalov
      • | Aug 28, 2014
      • | 395 views
      • | 0 comments
    • The relative playing strength of chess players

      The conventional method of rating chess players uses a procedure called "scoring" to reduce a trinomial process to a binomial making it possible to rate chess playing strength with a single scalar measure. This simplicity is achieved at a cost bec... | Read More

      • Jamalov
      • | Aug 11, 2014
      • | 329 views
      • | 0 comments
    • Pairwise comparison of chess opening variations

      SUMMARY: Pairwise comparisons show that there is no difference between the B70 Sicilian Defense/Dragon Variation and the B90 Sicilian Defense/Najdorf Variation in terms of the probability vector. The data are consistent with our null hypothesis t... | Read More

      • Jamalov
      • | Jul 30, 2014
      • | 418 views
      • | 0 comments
    • Cornered knight

      The corner knight cannot escape once the king moves to the position shown. Something to think about if your tactic or strategy involves a knight in the corner.   | Read More

      • Jamalov
      • | Mar 20, 2013
      • | 946 views
      • | 5 comments
    • The value of opening lines

      Do some opening lines favor white and others black? Or are they optimized to maintain a neutral position? To answer this question I selected 190 commonly played opening lines (out of thousands) from the "opening theory" book available online at wi... | Read More

      • Jamalov
      • | Mar 17, 2013
      • | 2831 views
      • | 15 comments
    • A comparison of the A00 Irregular Openings

          The data for the discussion below appears in a pdf file that I uploaded to a pdf hosting site.The pdf document was created from an Excel spreadsheeet. It lists the Irregular Openings twice. On page 1 they are listed in conventional seque... | Read More

      • Jamalov
      • | Mar 8, 2013
      • | 1303 views
      • | 2 comments
    • Black's defense against 1. e4

      I looked at eight different responses to 1. e4 listed in chess opening theory. They are c5, d5, e5, c6, d6, e6, g6, and Nf6. For each response I played out 10 mainline opening moves and then compared the relative advantage gained by black in eac... | Read More

      • Jamalov
      • | Feb 26, 2013
      • | 9158 views
      • | 18 comments
    • Albert Einstein

        As this blunderfest should make it very clear, just because a guy came up with the theory of relativity (to which he was led by Maxwell's equations) does not mean he was a good chess player nor that he was a general purpose all knowing wise ... | Read More

      • Jamalov
      • | Feb 23, 2013
      • | 1282 views
      • | 4 comments
    • Retirement

      The things that occupy my life these days are mostly things I never did before I retired. Take for example chess, golf, the guitar, living in Thailand, traveling around in SE Asia, learning different cultural practices and different languages. I... | Read More

      • Jamalov
      • | Feb 22, 2013
      • | 1175 views
      • | 10 comments