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Showing posts from May, 2020

Estimating playing strength

Have you ever felt like your chess rating doesn't represent your actual playing strength? Sometimes we want to be able to estimate playing strength based on individual games rather than rating (which changes more slowly). During the past few months, I've been taking a number of online courses and learning python for data analysis. In one of the courses, the final project allowed me to choose my own dataset. So surprise surprise! I chose something chess related. (Not really surprised, are you?) When we play games online, getting a computer evaluation is just a few clicks away. And a commonly used statistic is the average centipawn loss, or simply the average deviation from the computer's best move. Many of us tend to think that centipawn loss (CPL) is a good estimate of playing strength. And, of course, it gives some indication, but it's far from a perfect predictor. Fellow chess/statistics blogger Patrick Coulombe has investigated the correlation between rating and CPL ...

David vs Goliath

What is it that separates chess masters from amateur players? That is a question that many people have asked. A simplistic answer is that the master is simply better at all parts of the game; openings, middlegame, endgame, calculation, tactics - you name it! On the other hand, this question has a quite complex answer. Former world champion, Max Euwe (together with Walter Meiden), has written a book that aims to illustrate the differences in how masters and amateurs approach the game. I have been curious about this book for a long time, and I have finally had the opportunity to read it and share my thougths on it with you. If you like these reviews, please consider supporting my work. Visit my patreon page for details. Become a Patron! What can you expect from this book? Chess master vs chess amateur is a book that for some reason does not get as much attention as other books. After reading it, I cannot see why. This is a book that has a lot to offer. It is full of practical t...