books.google.ca - Both a fascinating challenge and a great training tool, these tricky tactical problems are not only fun to solve, but great for advanced beginners, intermediate, and expert players to use as tools to improve their game. Tactics are presented in order of difficulty, so that players can advance from simple...http://books.google.ca/books/about/Three_Hundred_and_Three_Tricky_Chess_Tac.html?id=8vcJAAAACAAJ&utm_source=gb-gplus-shareThree Hundred and Three Tricky Chess Tactics
