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  • Don't Lose Trying Too Hard to Win

    In my article on chess technique, I wholeheartedly agreed with Frank J. Marshall's affirmation that "the hardest thing in chess is to win a won game." Indeed, tenacious defense is now the norm rather than the exception. Fifty years ago, the fir... | Read More

  • Clash of Champions: Steinitz vs Lasker

    As we move along in our exploration of the endgames that defined the battles for the world championship, we come to the 1894 match between Emanuel Lasker and Wilhelm Steinitz, which took place in New York, Philadelphia, and Montreal. In the year... | Read More

  • A New Yorker and a Nomad to Contest Death Match 25

    At the age of 17, GM Boris Avrukh moved from Kazakhstan to Israel. Next month, he will move thousands of miles again, this time to the U.S. IM Yaacov Norowitz's big move? New York to New Jersey. Despite the oceans of difference, the two will conte... | Read More

  • The Dominican Order

          In his 1968 book called "The Poor Knight" ("Рыцарь бедный"). Vasily Panov described 23 year old Mikhail Tschigorin walking down Nevsky Prospect, a busy thoroughfare in St. Petersburg, with his friend Fedor discussing chess,... | Read More

  • Pandolfini's Puzzler #41 - Ryan's Quad

    Professor: Good afternoon, class. I trust you’ve had an eventful week of chess. Lucian: I certainly did. I played tons of blitz at the Marshall Chess Club. Zephyr: I was busy studying. I read a section on open files in Jeremy Silm... | Read More

    • DHLC simul vs NM GargleBlaster

      On Saturday July 26th NM John Chernoff, aka GargleBlaster decided to run a Simul against various members of the Dan Heisman Learning Centre. All games were 45 minutes with 45 second per move bonus. In the end 11 members of the DHLC took up the ch... | Read More

    • Emanuel Lasker book

      A book which immediately ranks as one of the finest in chess history has just been published: Emanuel Lasker Denker Weltenbürger Schachweltmeister edited by Richard Forster, Stefan Hansen and Michael Negele (Berlin, 2009). A few statistics fir... | Read More

    • Figure of Eight

      I have always been fascinated by concept of infinity.  It is one of those things you can grasp, or it bugs you.  It bugs me.  I love numbers; rational, irrational, real, imaginary.  I have always enjoyed math without being real good at it. I ... | Read More

    • کلیک

      اگر زندگی گزینه های زیر را داشت ، رو کدام کلیک می کردید؟ | Read More

    • Why is it worth learning to play chess?

      Chess teaches you how to think in a very concrete and precise manner much like physics, mathematics, or computer science.However it is always specific rather than generalized and involves resistance from your opponent.You can learn about yourself.... | Read More

      • apSnDyY
      • | Jul 22, 2014


  • Mathematics and chess

    • 1109 Reads
    • | 1109 Reads

    The number of possible chess positions after White’s first ply move is 20 (16 pawn moves and 4 knight moves).  There are 400 possible chess positions after two ply moves (first ply move for White followed by first ply move for Black).  Th... Read More »