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Soidog’s Blog


    • Samut Sakhon, Thailand

      chess.com members covpete1 and brownbird in samut sakhon, thailand | Read More

      • Jamalov
      • | Dec 14, 2014
      • | 178 views
      • | 4 comments
    • Rural Thailand

      If you ever get out of the tourism disneylands in Thailand you will find something that looks like this.  http://www.youtube.com/watch?v=pVo_nqWHmSk | Read More

      • Jamalov
      • | Nov 1, 2014
      • | 276 views
      • | 6 comments
    • 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
      • | 429 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
      • | 512 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
      • | 429 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
      • | 579 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
      • | 1025 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
      • | 3100 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
      • | 1451 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
      • | 10181 views
      • | 18 comments