http://gajans.blog.co.uk/Solving chess puzzles or problems is a whole lot of fun, isn't it? As all of us are well aware, we put a lot of effort into keeping our bodies fit. Gyms and hundreds of magazines and videos tell us how to do it. But what keeps our brains fit?en-UKMokoFeed10http://gajans.blog.co.uk/http://data5.blog.de/design/preview/34/45577c99403bb109bb9b743398cd1c_160x200.jpg