This antique book contains a detailed treatise on the use of mathematics and statistics as a technique for strategy in chess and card games. A fascinating text full of interesting tips and thorough analyses of the theory behind the practical application of these techniques, this book that will greatly appeal to the serious and mathematically minded player of games. The chapters of this book include: 'Interlude on the Method of Moments', 'The Recognition of a Mean Difference (For Large Samples)', 'Correlation and Independence', 'The Nature of Concomitant Variation', and 'Preview of Sampling Systems'. We are proud to republish this book now complete with a new introduction on the subject.