Computer analysis and comparison of chess players' game-playing styles

Today's computer chess programs are very good at evaluating chess positions. Research has shown that we can rank chess players by the quality of their game play, using a computer chess program. In the master's thesis Computer analysis and comparison of chess players' game-playing styles, we focus on the content analysis of chess games using a computer chess program's evaluation and attributes we determined for each individual position. We defined meaningful attributes that can be used for computer analysis and are also comprehensible to a chess player. Using the attributes, we built profiles with which we defined chess players' styles. We evaluated the quality of the profiles by automatically identifying a chess player in a set of chess players. The profile of the chess player in the set and the one outside of it was built using different chess games. Using the result of the analysis we refined the profiles structure. In doing so we were aided by the information gain of each attribute. The most suitable profile was used for searching for world chess champions with the most similar style to a chosen chess player. We also sorted the world chess champions into groups according to their style of play. Because these players are well known, we compared our groups with the chess players' actual styles and determined how successful we were. By using the developed profiles, we can help partly automate and ease a chess player's analysis of chess games. We believe that the methods used in building the profiles and for the subsequent analysis could be applied to other domains

Computer analysis and comparison of chess players' game-playing styles

Today's computer chess programs are very good at evaluating chess positions. Research has shown that we can rank chess players by the quality of their game play, using a computer chess program. In the master's thesis Computer analysis and comparison of chess players' game-playing styles, we focus on the content analysis of chess games using a computer chess program's evaluation and attributes we determined for each individual position. We defined meaningful attributes that can be used for computer analysis and are also comprehensible to a chess player. Using the attributes, we built profiles with which we defined chess players' styles. We evaluated the quality of the profiles by automatically identifying a chess player in a set of chess players. The profile of the chess player in the set and the one outside of it was built using different chess games. Using the result of the analysis we refined the profiles structure. In doing so we were aided by the information gain of each attribute. The most suitable profile was used for searching for world chess champions with the most similar style to a chosen chess player. We also sorted the world chess champions into groups according to their style of play. Because these players are well known, we compared our groups with the chess players' actual styles and determined how successful we were. By using the developed profiles, we can help partly automate and ease a chess player's analysis of chess games. We believe that the methods used in building the profiles and for the subsequent analysis could be applied to other domains

A methodology for learning players' styles from game records

We describe a preliminary investigation into learning a Chess player's style from game records. The method is based on attempting to learn features of a player's individual evaluation function using the method of temporal differences, with the aid of a conventional Chess engine architecture. Some encouraging results were obtained in learning the styles of two Chess world champions, and we report on our attempt to use the learnt styles to discriminate between the players from game records, by trying to detect who was playing white and who was playing black. We also discuss some limitations of our approach